Publications

2021

How ‘pairons’ are revealed in the electronic specific heat of cuprates
Y. Noat, A. Mauger, M. Nohara, H. Eisaki, and W. Sacks,
Solid State Communications 323, 114109 (7 pages) (2021).
[DOI: 10.1016/j.ssc.2020.114109]

2020

Superconductivity of the Partially Ordered Laves Phase Mg₂Ir_2.3Ge_1.7
K. Kudo, T. Honda, H. Hiiragi, H. Ota, and M. Nohara,
J. Phys. Soc. Jpn.　89, 123701 (4 pages) (2020).
[DOI: 10.7566/JPSJ.89.123701]
Photoinduced Phase Transition from Excitonic Insulator to Semimetal-like State in Ta₂Ni_1−xCo_xSe₅ (x = 0.10)
T. Mitsuoka, T. Suzuki, H. Takagi, N. Katayama, H. Sawa, M. Nohara, M. Watanabe, J. Xu, Q. H. Ren, M. Fujisawa, T. Kanai, J. Itatani, S. Shin, K. Okazaki, T. Mizokawa,
J. Phys. Soc. Jpn. 89, 124703 (6 pages) (2020). [DOI: 10.7566/JPSJ.89.124703]
Mapping the unoccupied state dispersions in Ta₂NiSe₅ with resonant inelastic x-ray scattering
C. Monney, M. Herzog, A. Pulkkinen, Y. Huang, J. Pelliciari, P. Olalde-Velasco, N. Katayama, M. Nohara, H. Takagi, T. Schmitt, and T. Mizokawa,
Phys. Rev. B 102, 085148 (6 pages) (2020).
[DOI: 10.1103/PhysRevB.102.085148]
Superconductivity in Mg₂Ir₃Si: A fully ordered Laves phase
K. Kudo, H. Hiiragi, T. Honda, K. Fujmura, H. Idei, and M. Nohara,
J. Phys. Soc. Jpn. 89, 013701 (4 pages) (2020).
[DOI: 10.7566/JPSJ.89.013701]

2019

Valence-bond insulator in proximity to excitonic instability
Y. Chiba, T. Mitsuoka, N. L. Saini, K. Horiba, M. Kobayashi, K. Ono, H. Kumigashira, N. Katayama, H. Sawa, M. Nohara, Y. F. Lu, H. Takagi, and T. Mizokawa,
Phys. Rev. B 100, 245129 (5 pages) (2019).
[DOI: 10.1103/PhysRevB.100.245129]
The local structure of the Ca_0.9Pr_0.1Fe₂As₂ superconductor as a function of temperature
E. Paris, T. Wakita, L. Simonelli, C. Marini, W. Olszewski, K. Terashima, F. Stramaglia, G. M. Pugliese, T. Mizokawa, S. Ioka, K. Kudo, M. Nohara, T. Yokoya, and N. L. Saini,
Supercond. Sci. Technol. 32, 095001 (7 pages) (2019).
[DOI: 10.1088/1361-6668/ab2792]
Interplay between spin-orbit interaction and stripe-type charge-orbital order of IrTe₂
D. Ootsuki, H. Ishii, K. Kudo, M. Nohara, M. Arita, H. Namatame, M. Taniguchi, N. L. Saini, and T. Mizokawa,
J. Phys. Chem. Solids 128, 270-274 (2019).
[DOI: 10.1016/j.jpcs.2018.02.015]
Impact of Local Atomic Fluctuations on Superconductivity of Pr-Substituted CaFe₂As₂ Studied by X-ray Fluorescence Holography
K. Kudo, S. Ioka, N. Happo, H. Ota, Y. Ebisu, K. Kimura, T. Hada, T. Kimura, H. Tajiri, S. Hosokawa, K. Hayashi, and M. Nohara,
J. Phys. Soc. Jpn. 88, 063704 (5 pages) (2019).
[DOI: 10.7566/JPSJ.88.063704]

2018

Photo-induced semimetallic states realised in electron–hole coupled insulators
K. Okazaki, Y. Ogawa, T. Suzuki, T. Yamamoto, T. Someya, S. Michimae, M. Watanabe, Y. Lu, M. Nohara, H. Takagi, N. Katayama, H. Sawa, M. Fujisawa, T. Kanai, N. Ishii, J. Itatani, T. Mizokawa, and S. Shin,
Nat. Commun. 9, 4322 (6 pages) (2018).
[DOI: 10.1038/s41467-018-06801-1]
Atomic Imaging of Iron‐Based Superconductor Parent FeTe Using X‐Ray Fluorescence Holography
B. Paulus, S. Hosokawa, J. R. Stellhorn, B. Klee, K. M. Sowa, K. Kudo, N. Nishimoto, H. Ota, M. Nohara, M. de Boissieu, N. Blanc, N. Boudet, and W.‐C. Pilgrim,
Phys. Status Solidi B 255, 1800200 (5 pages) (2018).
[DOI: 10.1002/pssb.201800200]
Temperature-dependent local structure and superconductivity of BaPd₂As₂ and SrPd₂As₂
K. Terashima, E. Paris, L. Simonelli, E. Salas-Colera, A. Puri, T. Wakita, Y. Yamada, S. Nakano, H. Idei, K. Kudo, M. Nohara, Y. Muraoka, T. Mizokawa, T. Yokoya, and N. L. Saini,
Phys. Rev. B. 98, 094525 (5 pages) (2018).
[DOI: 10.1103/PhysRevB.98.094525]
Ultrafast dissolution and creation of bonds in IrTe₂ induced by photodoping
S. Ideta, D. Zhang, A. G. Dijkstra, S. Artyukhin, S. Keskin, R. Cingolani, T. Shimojima, K. Ishizaka, H. Ishii, K. Kudo, M. Nohara and R. J. D. Miller,
Science Advances 4, eaar3867 (2018).
[DOI: 10.1126/sciadv.aar3867]
Superconductivity in Hexagonal BaPtAs: SrPtSb- and YPtAs-type Structures with Ordered Honeycomb Network
K. Kudo, T. Takeuchi, H. Ota, Y. Saito, S. Ayukawa, K. Fujimura, and M. Nohara,
J. Phys. Soc. Jpn. 87, 073708 (5 pages) (2018).
[DOI: 10.7566/JPSJ.87.073708]
Commensurate versus incommensurate charge ordering near the superconducting dome in Ir_1-xPt_xTe₂ revealed by resonant x-ray scattering
K. Takubo, K. Yamamoto, Y. Hirata, H. Wadati, T. Mizokawa, R. Sutarto, F. He, K. Ishii, Y. Yamasaki, H. Nakao, Y. Murakami, G. Matsuo, H. Ishii, M. Kobayashi, K. Kudo, and M. Nohara,
Phys. Rev. B 97, 205142 (9 pages) (2018).
[DOI: 10.1103/PhysRevB.97.205142]
Superconductivity in BaPtSb with an Ordered Honeycomb Network
K. Kudo, Y. Saito, T. Takeuchi, S. Ayukawa, T. Kawamata, S. Nakamura, Y. Koike, and M. Nohara,
J. Phys. Soc. Jpn. 87, 063702 (2 pages) (2018).
[DOI: 10.7566/JPSJ.87.063702]
Metastable superconductivity in two-dimensional IrTe₂ crystals
M. Yoshida, K. Kudo, M. Nohara, and Y. Iwasa,
Nano Lett. 18, 3113-3117 (2018).
[DOI: 10.1021/acs.nanolett.8b00673]
Inhibition of the photoinduced structural phase transition in the excitonic insulator Ta₂NiSe₅
S. Mor, M. Herzog, J. Noack, N. Katayama, M. Nohara, H. Takagi, A. Trunschke, T. Mizokawa, C. Monney, and J. Stähler,
Phys. Rev. B 97, 115154 (5 pages) (2018).
[DOI: 10.1103/PhysRevB.97.115154]

2017

Distinct local structure of superconducting Ca₁₀M₄As₈(Fe₂As₂)₅ (M=Ir,Pt)
E. Paris, T. Wakita, O. Proux, T. Yokoya, K. Kudo, D. Mitsuoka, T. Kimura, K. Fujimura, N. Nishimoto, S. Ioka, M. Nohara, T. Mizokawa, and N. L. Saini,
Phys. Rev. B 96, 224507 (6 pages) (2017).
[DOI: 10.1103/PhysRevB.96.224507]
Charge-Stripe Order and Superconductivity in Ir_1−xPt_xTe₂
O. Ivashko, L. Yang, D. Destraz, E. Martino, Y. Chen, C. Y. Guo, H. Q. Yuan, A. Pisoni, P. Matus, S. Pyon, K. Kudo, M. Nohara, L. Forró, H. M. Rønnow, M. Hücker, M. v. Zimmermann, and J. Chang,
Scientific Reports 7, 17157 (7 pages) (2017).
[DOI: 10.1038/s41598-017-16945-7]
A Novel One-Dimensional Electronic State at IrTe₂ Surface
D. Ootsuki, H. Ishii, K. Kudo, M. Nohara, M. Takahashi, M. Horio, A. Fujimori, T. Yoshida, M. Arita, H. Anzai, H. Namatame, M. Taniguchi, N. L. Sain, T. Mizokawa,
J. Phys. Soc. Jpn. 86, 123704 (5 pages) (2017).
[DOI: 10.7566/JPSJ.86.123704]
Pressure-Induced Superconductivity from the Doping-Induced Antiferromagnetic Phase of 112-type Ca_1-xLa_xFeAs₂
S. Kitagawa, T. Sekiya, Y. Fujiyoshi, S. Araki, T. C. Kobayashi, N. Nishimoto, T. Mizukami, S. Ioka, K. Fujimura, K. Kudo, and M. Nohara,
J. Phys. Soc. Jpn. 86, 113705 (4 pages) (2017).
[DOI: 10.7566/JPSJ.86.113705]
Ultrafast electronic band gap control in an excitonic insulator
S. Mor, M. Herzog, D. Golež, P. Werner, M. Eckstein, N. Katayama, M. Nohara, H. Takagi, T. Mizokawa, C. Monney, and J. Stähler,
Phys. Rev. Lett. 119, 086401 (5 pages) (2017).
[DOI: 10.1103/PhysRevLett.119.086401]
Orbital-dependent band renormalization in BaNi₂(As_1-xP_x)₂ (x = 0.00 and 0.092)
T. Noda, K. Kudo, M. Takasuga, M. Nohara, T. Sugimoto, D. Ootsuki, M. Kobayashi, K. Horiba, K. Ono, H. Kumigashira, A. Fujimori, N. L. Saini, and T. Mizokawa,
J. Phys. Soc. Jpn. 86, 064708 (8 pages) (2017).
[DOI: 10.7566/JPSJ.86.064708]
Strong-Coupling Superconductivity in BaPd₂As₂ Induced by Soft Phonons in the ThCr₂Si₂-type Polymorph
K. Kudo, Y. Yamada, T. Takeuchi, T. Kimura, S. Ioka, G. Matsuo, Y. Kitahama, and M. Nohara,
J. Phys. Soc. Jpn. 86, 063704 (4 pages) (2017).
[DOI: 10.7566/JPSJ.86.063704]
Arsenic chemistry of iron-based superconductors and strategy for novel superconducting materials
M. Nohara and K. Kudo,
Advances in Physics: X 2, 450-461 (2017).
[DOI: 10.1080/23746149.2017.1317024]
Enhanced Superconductivity in Close Proximity to the Structural Phase Transition of Sr_1-xBa_xNi₂P₂
K. Kudo, Y. Kitahama, K. Iba, M. Takasuga, and M. Nohara,
J. Phys. Soc. Jpn. 86, 035001 (2 pages) (2017).
[DOI: 10.7566/JPSJ.86.035001]
Site-Selective Antimony Doping in Arsenic Zigzag Chains of 112-type Ca_1-xLa_xFeAs₂
H. Ota, K. Kudo, T. Kimura, Y. Kitahama, T. Mizukami, S. Ioka, and M. Nohara,
J. Phys. Soc. Jpn. 86, 025002 (2 pages) (2017).
[DOI: 10.7566/JPSJ.86.025002]

2016

Temperature dependent local atomic displacements in ammonia intercalated iron selenide superconductor
E. Paris, L. Simonelli, T. Wakita, C. Marini, J.-H. Lee, W. Olszewski, K. Terashima, T. Kakuto, N. Nishimoto, T. Kimura, K. Kudo, T. Kambe, M. Nohara, T. Yokoya, and N. Saini,
Scientific Reports 6, 27646 (8 pages) (2016) .
[DOI: 10.1038/srep27646]
Composition-induced structural instability and strong-coupling superconductivity in Au_1-xPd_xTe₂
K. Kudo, H. Ishii, and M. Nohara,
Phys. Rev. B 93, 140505(R) (5 Pages) (2016).
[DOI: 10.1103/PhysRevB.93.140505]
Pressure dependence of the local structure of iridium ditelluride across the structural phase transition,
E. Paris, B. Joseph, A. Iadecola, C. Marini, H. Ishii, K. Kudo, S. Pascarelli, M. Nohara, T. Mizokawa, and N. L. Saini,
Phys. Rev. B 93, 134109 (6 pages) (2016).
[DOI: 10.1103/PhysRevB.93.134109]
Enhancement of critical current density in Ca_0.85La_0.15Fe(As_0.92Sb_0.08)₂ superconductor with T_c = 47 K through 3 MeV proton irradiation,
A. Park, A. Mine, T. Yamada, F. Ohtake, H. Akiyama, Y. Sun, S. Pyon, T. Tamegai, Y. Kitahama, T. Mizukami, K. Kudo, M. Nohara, H. Kitamura,
Supercond. Sci. Technol. 29, 055006 (6 pages) (2016).
[DOI: 10.1088/0953-2048/29/5/055006]
High-resolution magnetic penetration depth and inhomogeneities in locally noncentrosymmetric SrPtAs,
J. F. Landaeta, S. V. Taylor, I. Bonalde, C. Rojas, Y. Nishikubo, K. Kudo, and M. Nohara,
Phys. Rev. B 93, 064504 (5 pages) (2016).
[DOI: 10.1103/PhysRevB.93.064504]
A new way to synthesize superconducting metal-intercalated C₆₀ and FeSe,
Y. Takahei, K. Tomita, Y. Itoh, K. Ashida, Ji-Hyun Lee, N. Nishimoto, T. Kimura, K. Kudo, M. Nohara, Y. Kubozono, and T. Kambe,
Scientific Reports 6, 18931 (7 pages) (2016).
[DOI: 10.1038/srep18931]

2015

Doping-enhanced antiferromagnetism in Ca_1-xLa_xFeAs₂
S. Kawasaki, T. Mabuchi, S. Maeda, T. Adachi, T. Mizukami, K. Kudo, M. Nohara, and G.-q. Zheng, Phys. Rev. B 92, 180508(R) (5 pages) (2015).
[DOI: 10.1103/PhysRevB.92.180508]
Suppression of Nonmagnetic Insulating State by Application of Pressure in Mineral Tetrahedrite Cu₁₂Sb₄S₁₃
S. Kitagawa, T. Sekiya, S. Araki, T. C. Kobayashi, K. Ishida, T. Kambe, T. Kimura, N. Nishimoto, K. Kudo, and M. Nohara,
J. Phys. Soc. Jpn. 84, 093701 (4 pages) (2015).
[DOI: 10.7566/JPSJ.84.093701]
Superconductivity in MgPtSi: an orthorhombic variant of MgB₂
K. Kudo, K. Fujimura, S. Onari, H. Ota, and M. Nohara,
Phys. Rev. B 91, 174514 (5 pages) (2015).
[DOI: 10.1103/PhysRevB.91.174514]
Exploration of new superconductors and functional materials, and fabrication of superconducting tapes and wires of iron pnictides
H. Hosono, K. Tanabe, E. Takayama-Muromachi, H. Kageyama, S. Yamanaka, H. Kumakura, M. Nohara, H. Hiramatsu, and S. Fujitsu,
Science and Technology of Advanced Materials 16, 033503 (87 pages) (2015).
[DOI: 10.1088/1468-6996/16/3/033503]
Comparative ARPES study on iron-platinum-arsenide superconductor Ca₁₀(Pt₄As₈)(Fe_2-xPt_xAs₂)₅ (x = 0.25 and 0.42)
M. Sunagawa, R. Yoshida, T. Ishiga, K.Tsubota, T. Jabuchi, J. Sonoyama, S. Kakiya, D. Mitsuoka, K. Kudo, M. Nohara, K. Ono, H. Kumigashira, T. Oguchi, T. Wakita, Y. Muraoka, and T. Yokoya,
J. Phys. Soc. Jpn. 84, 055001 (2 pages) (2015).
[DOI: 10.7566/JPSJ.84.055001]
Coexistence of multiple charge-density waves and superconductivity in SrPt₂As₂ revealed by ⁷⁵As-NMR/NQR and ¹⁹⁵Pt-NMR
S. Kawasaki, Y. Tani, T. Mabuchi, K. Kudo, Y. Nishikubo, D. Mitsuoka, M. Nohara, G.-q. Zheng,
Phys. Rev. B 91, 060510(R) (5 pages) (2015).
[DOI: 10.1103/PhysRevB.91.060510]

2014

Simultaneous suppression of superconductivity and structural phase transition against pressure in Ca₁₀(Ir₄As₈)(Fe_2-xIr_xAs₂)₅
S. Kitagawa, S. Araki, T. C. Kobayashi, H. Ishii, K. Fujimura, D. Mitsuoka, K. Kudo, and M. Nohara
Phys. Rev. B 90, 224513 (2014).
[DOI: 10.1103/PhysRevB.90.224513]
Angle-Resolved Photoemission Study on Multi-Band Electronic Structure of IrTe₂
D. Ootsuki, S. Pyon, K. Kudo, M. Nohara, M. Horio, T. Yoshida, A. Fujimori, M. Arita, H. Anzai, H. Namatame, M. Taniguchi, N. L. Saini, and T. Mizokawa
JPS Conf. Proc. 3, 016015 (2014).
[DOI: 10.7566/JPSCP.3.016015]
Effect of Pt substitution on the electronic structure of AuTe₂
D. Ootsuki, K. Takubo, K. Kudo, H. Ishii, M. Nohara, N. L. Saini, R. Sutarto, F. He, T. Z. Regier, M. Zonno, M. Schneider, G. Levy, G. A. Sawatzky, A. Damascelli, T. Mizokawa,
Phys. Rev. B. 90, 144515 (5 pages) (2014).
[DOI: 10.1103/PhysRevB.90.144515]
Synchrotron X-ray diffraction study of the Structural Phase Transition in Ca₁₀(Ir₄As₈)(Fe_2−xIr_xAs₂)₅
N. Katayama, K. Sugawara, Y. Sugiyama, T. Higuchi, K. Kudo, D. Mitsuoka, T. Mizokawa, M. Nohara, and H. Sawa,
J. Phys. Soc. Jpn. 83, 113707 (5 pages) (2014).
[DOI: 10.7566/JPSJ.83.113707]
Excitonic Bose-Einstein condensation in Ta₂NiSe₅ above room temperature
K. Seki, Y. Wakisaka, T. Kaneko, T. Toriyama, T. Konishi, T. Sudayama, N. L. Saini, M. Arita, H. Namatame, M. Taniguchi, N. Katayama, M. Nohara, H. Takagi, T. Mizokawa, and Y. Ohta,
Phys. Rev. B 90, 155116 (7 pages) (2014).
[DOI: 10.1103/PhysRevB.90.155116]
Determination of temperature-dependent atomic displacements in the Ca₁₀Ir₄As₈(Fe₂As₂)₅ superconductor with a metallic spacer layer
E. Paris, B. Joseph, A. Iadecola, C. Marini, K. Kudo, D. Mitsuoka, M. Nohara, T. Mizokawa, and N. L. Saini,
Physical Review B 90, 094508 (6 pages) (2014).
[DOI: 10.1103/PhysRevB.90.094508]
Temperature dependent nanoscale atomic correlations in Ir_1−xPt_xTe₂ (x = 0.0, 0.03 and 0.04) system
B. Joseph, E. Paris, D. F. Mulato-Gomez, L. Simonelli, M. Bendele, L. Maugeri, A. Iadecola, S. Pyon, K. Kudo, M. Nohara, J. Mustre de Leon, T. Mizokawa, and N. L. Saini,
J. Phys.: Condens. Matter 26 375702 (2014).
[DOI: 10.1088/0953-8984/26/37/375702]
Superconductivity in Noncentrosymmetric Iridium Silicide Li₂IrSi₃
S. Pyon, K. Kudo, J. Matsumura, H. Ishii, G. Matsuo, M. Nohara, H. Hojo, K. Oka, M. Azuma, V. O. Garlea, K. Kodama, S. Shamoto,
Journal of the Physical Society of Japan 83, 093706 (5 Pages) (2014).
[DOI: 10.7566/JPSJ.83.093706]
Superconducting Transition Temperatures of up to 47 K from Simultaneous Rare-Earth Element and Antimony Doping of 112-Type CaFeAs₂
K. Kudo, Y. Kitahama, K. Fujimura, T. Mizukami, H. Ota, and M. Nohara,
Journal of the Physical Society of Japan 83, 093705 (4 Pages) (2014).
[DOI: 10.7566/JPSJ.83.093705]
Bond order and the role of ligand states in stripe-modulated IrTe₂
K. Takubo, R. Comin, D. Ootsuki, T. Mizokawa, H. Wadati, Y. Takahashi, G. Shibata, A. Fujimori, R. Sutarto, F. He, S. Pyon, K. Kudo, M. Nohara, G. Levy, I. S. Elfimov, G. A. Sawatzky, and A. Damascelli,
Phys. Rev. B 90, 081104(R) (5 pages) (2014).
[DOI: 10.1103/PhysRevB.90.081104]
Coexistence of Bloch electrons and glassy electrons in Ca₁₀(Ir₄As₈)(Fe_2−xIr_xAs₂)₅ revealed by angle-resolved photoemission spectroscopy
K. Sawada, D. Ootsuki, K. Kudo, D. Mitsuoka, M. Nohara, T. Noda, K. Horiba, M. Kobayashi, K. Ono, H. Kumigashira, N. L. Saini, and T. Mizokawa,
Physica Review B 89, 220508(R) (4 pages) (2014).
[DOI: 10.1103/PhysRevB.89.220508]
Pudding-Mold-Type Band as an Origin of the Large Seebeck Coefficient Coexisting with Metallic Conductivity in Carrier-Doped FeAs₂ and PtSe₂
H. Usui, K. Kuroki, S. Nakano, K. Kudo, M. Nohara,
Journal of Electronic Materials 43, 1656-1661 (2014).
[DOI: 10.1007/s11664-013-2823-5]
Spin-singlet superconductivity with a full gap in locally non-centrosymmetric SrPtAs
K. Matano, K. Arima, S. Maeda, Y. Nishikubo, K. Kudo, M. Nohara, Guo-qing Zheng,
Physical Review B 89, 140504(R) (4 pages) (2014).
[DOI: 10.1103/PhysRevB.89.140504]
Characteristic two-dimensional Fermi surface topology of high-T_c iron-based superconductors
M. Sunagawa, T. Ishiga, K. Tsubota, T. Jabuchi, J. Sonoyama, K. Iba, K. Kudo, M. Nohara, K. Ono, H. Kumigashira, T. Matsushita, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, T. Wakita, Y. Muraoka, T. Yokoya,
Scientific Reports 4, 4381 (2014).
[DOI: 10.1038/srep04381]
Te 5p orbitals bring three-dimensional electronic structure to two-dimensional Ir_0.95Pt_0.05Te₂
D. Ootsuki, T. Toriyama, S. Pyon, K. Kudo, M. Nohara, K. Horiba, M. Kobayashi, K. Ono, H. Kumigashira, T. Noda, T. Sugimoto, A. Fujimori, N. L. Saini, T. Konishi, Y. Ohta, and T. Mizokawa,
Physical Review B 89, 104506 (4 pages) (2014).
Important roles of Te 5p and Ir 5d spin-orbit interactions on the multi-band electronic structure of triangular lattice superconductor Ir_1−xPt_xTe₂
D. Ootsuki, T. Toriyama, M. Kobayashi, S. Pyon, K. Kudo, M. Nohara, T. Sugimoto, T. Yoshida, M. Horio, A. Fujimori, M. Arita, H. Anzai, H. Namatame, M. Taniguchi, N. L. Saini, T. Konishi, Y. Ohta, T. Mizokawa,
Journal of the Physical Society of Japan, 83, 033704 (4 pages) (2014).
[DOI: 10.7566/JPSJ.83.033704]
Switching of Conducting Planes by Partial Dimer Formation in IrTe₂
T. Toriyama, M. Kobori, T. Konishi, Y. Ohta, K. Sugimoto, J. Kim, A. Fujiwara, S. Pyon, K. Kudo, M. Nohara,
Journal of the Physical Society of Japan, 83, 033701 (5 pages) (2014).
[DOI: 10.7566/JPSJ.83.033701]
Enhanced Superconductivity up to 43 K by P/Sb Doping of Ca_1−xLa_xFeAs₂
K. Kudo, T. Mizukami, Y. Kitahama, D. Mitsuoka, K. Iba, K. Fujimura, N. Nishimoto, Y. Hiraoka, M. Nohara,
Journal of Physical the Society of Japan, 83, 025001 (2 pages) (2014).
[DOI: 10.7566/JPSJ.83.025001]

2013

Local structural displacements across the structural phase transition in IrTe₂: Order-disorder of dimers and role of Ir-Te correlations
B. Joseph, M. Bendele, L. Simonelli, L. Maugeri, S. Pyon, K. Kudo, M. Nohara, T. Mizokawa, and N. L. Saini,
Physical Review B 88, 224109 (2013).
[DOI: 10.1103/PhysRevB.88.224109]
Superconductivity in Ca_1-xLa_xFeAs₂: A Novel 112-Type Iron Pnictide with Arsenic Zigzag Bonds
N. Katayama, K. Kudo, S. Onari, T. Mizukami, K. Sugawara, Y. Sugiyama, Y. Kitahama, K. Iba, K. Fujimura, N. Nishimoto, M. Nohara, and H. Sawa,
Journal of the Physical Society of Japan, 82, 123702 (4 pages) (2013).
[DOI: 10.7566/JPSJ.82.123702]
Superconductivity in Ca₁₀(Ir₄As₈)(Fe₂As₂)₅ with Square-Planar Coordination of Iridium
K. Kudo, D. Mitsuoka, M. Takasuga, Y. Sugiyama, K. Sugawara, N. Katayama, H. Sawa, H. S. Kubo, K. Takamori, M. Ichioka, T. Fujii, T. Mizokawa, and M. Nohara,
Scientific Reports 3, 3101-1-5 (2013).
[DOI: 10.1038/srep03101]
Pressure-Induced Superconductivity in Mineral Calaverite AuTe₂
S. Kitagawa, H. Kotegawa, H. Tou, H. Ishii, K. Kudo, M. Nohara, H. Harima,
Journal of the Physical Society of Japan, 82, 113704-1-4 (2013).
[DOI: 10.7566/JPSJ.82.113704]
Emergence of superconductivity near the structural phase boundary in Pt-doped IrTe₂ single crystals
S. Pyon, K. Kudo, M. Nohara,
Physica C 494, 80-84 (2013).
[DOI: 10.1016/j.physc.2013.04.055]
Enhancing high-temperature thermoelectric properties of PtAs₂ by Rh doping
K. Kudo, S. Nakano, T. Mizukami, T. Takabatake, M. Nohara,
Applied Physics Letters 103, 092107-1-3 (2013).
[DOI: 10.1063/1.4819953]
Large Seebeck effect in electron-doped FeAs₂ driven by a quasi-one-dimensional pudding-mold-type band
H. Usui, K. Suzuki, K. Kuroki, S. Nakano, K. Kudo, and M. Nohara,
Physical Review B 88, 075140-1-6 (2013).
[DOI: 10.1103/PhysRevB.88.075140]
Electronic Structure Reconstruction by Orbital Symmetry Breaking in IrTe₂
D. Ootsuki, S. Pyon, K. Kudo, M. Nohara, M. Horio, T. Yoshida, A. Fujimori, M. Arita, H. Anzai, H. Namatame, M. Taniguchi, N. L. Saini, and T. Mizokawa,
Journal of the Physical Society of Japan, 82, 093701-1-4 (2013).
[DOI: 10.7566/JPSJ.82.093704]
Suppression of Structural Phase Transition in IrTe₂ by Isovalent Rh Doping
K. Kudo, M. Kobayashi, S. Pyon, M. Nohara,
Journal of the Physical Society of Japan, 82, 085001-1-2 (2013).
[DOI: 10.7566/JPSJ.82.085001]
Collapsed Tetragonal Phase Transition of Ca(Fe_1-xRh_x)₂As₂ Studied by Photoemission Spectroscopy
K. Tsubota, T. Wakita, H. Nagao, C. Hiramatsu, T. Ishiga, M. Sunagawa, K. Ono, H. Kumigashira, M. Danura, K. Kudo, M. Nohara, Y. Muraoka, T. Yokoya,
Journal of the Physical Society of Japan, 82, 073705-1-5 (2013).
[DOI: 10.7566/JPSJ.82.073705]
Superconductivity Induced by Breaking Te₂ Dimers of AuTe₂
K. Kudo, H. Ishii, M. Takasuga, K. Iba, S. Nakano, J. Kim, A. Fujiwara, and M. Nohara,
Journal of the Physical Society of Japan, 82, 063704-1-4 (2013).
[DOI: 10.7566/JPSJ.82.063704]
Band Jahn-Teller effects and Peierls Instability in IrTe₂
D. Ootsuki, S. Pyon, K. Kudo, M. Nohara, M. Horio, T. Yoshida, A. Fujimori, M. Arita, H. Anzai, H. Namatame, M. Taniguchi, N. L. Saini, and T. Mizokawa,
J. Phys.: Conf. Ser. 428, 012018 (2013).
[DOI: 10.1088/1742-6596/428/1/012018]
Emergence of superconductivity at 45 K by lanthanum and phosphorus co-doping of CaFe₂As₂
K. Kudo, K. Iba, M. Takasuga, Y. Kitahama, J. Matsumura, M. Danura, Y. Nogami, and M. Nohara,
Scientific Reports 3, 1478 (2013).
[DOI: 10.1038/srep01478]

2012

Giant Phonon Softening and Enhancement of Superconductivity by Phosphorus Doping of BaNi₂As₂
K. Kudo, M. Takasuga, Y. Okamoto, Z. Hiroi, and M. Nohara,
Physical Review Letters 109, 097002 (2012).
[DOI: 10.1103/PhysRevLett.109.097002]
Orbital degeneracy and Peierls instability in the triangular-lattice superconductor Ir_1-xPt_xTe₂
D. Ootsuki, Y. Wakisaka, S. Pyon, K. Kudo, M. Nohara, M. Arita, H. Anzai, H. Namatame, M. Taniguchi, N. L. Saini, and T. Mizokawa,
Physical Review B 86, 014519 (2012).
[DOI: 10.1103/PhysRevB.86.014519]
Orbital Degeneracy, Jahn-Teller Effect, and Superconductivity in Transition-Metal Chalcogenides
T. Mizokawa, T. Sudayama, Y. Wakisaka, D. Ootsuki, M. Imaizumi, T. Noji, Y. Koike, S. Pyon, K. Kudo, M. Nohara, H. Anzai, M. Arita, H. Namatame, M. Taniguchi, N. L. Saini,
J. Supercond. Nov. Magn. 25, 1343-1346 (2012).
[DOI: 10.1007/s10948-012-1626-x]
Photoemission Spectroscopy of Ta₂NiSe₅
Y. Wakisaka, T. Sudayama, K. Takubo, T. Mizokawa, N. L. Saini, M. Arita, H. Namatame, M. Taniguchi, N. Katayama and M. Nohara, and H. Takagi,
J. Supercond. Nov. Magn. 25, 1231-1234 (2012).
[DOI: 10.1007/s10948-012-1526-0]
Enhanced Thermoelectric Properties by Ir Doping of PtSb₂ with Pyrite Structure
Y. Nishikubo, S. Nakano, K. Kudo, and M. Nohara,
Applied Physics Letters, 100, 252104 (2012).
[DOI: 10.1063/1.4729789]
Superconductivity Induced by Bond Breaking in the Triangular Lattice of IrTe₂
S. Pyon, K. Kudo, and M. Nohara
Journal of the Physical Society of Japan, 81, 053701 (2012).
[DOI: 10.1143/JPSJ.81.053701]
Iron-platinum-arsenide superconductors Ca₁₀(Pt_nAs₈)(Fe_2-xPt_xAs₂)₅
M. Nohara, S. Kakiya, K. Kudo, Y. Oshiro, S. Araki, T. C. Kobayasi, K. Oku, E. Nishibori, and H. Sawa
Solid State Communications, 152, 635 (2012).
[DOI: 10.1016/j.ssc.2011.12.034]
Breakdown of Chemical Scaling for Pt-Doped CaFe₂As₂
K. Kudo, M. Kobayashi, S. Kakiya, M. Danura, and M. Nohara
Journal of the Physical Society of Japan, 81, 035002 (2012).
[DOI: 10.1143/JPSJ.81.035002]
Superconductivity in Pseudo-Binary Silicide SrNi_xSi_2-x with AlB₂-Type Structure
S. Pyon, K. Kudo, and M. Nohara
Journal of the Physical Society of Japan, 81, 023702 (2012).
[DOI: 10.1143/JPSJ.81.023702]
Transport and thermodynamic evidence for a marginal Fermi-liquid state in ZrZn₂
Mike Tutherland, R. P. Smith, N. Marcano, Y. Zou, S. E. Rowley, F. M. Grosche, N. Kimura, S. M. Hayden, S. Takashima, M. Nohara, and H. Takagi
Physical Review B 85, 035118 (2012).
[DOI: 10.1103/PhysRevB.85.035118]
Quasi-One-Dimensional Spin Dynamics in LiV₂O₄: One-to-Three-Dimensional Crossover as a Possible Origin of Heavy Fermion State
R. Kadono, A. Koda, W. Higemoto, K. Ohishi, H. Ueda, C. Urano, S. Kondo, M. Nohara, and H. Takagi,
Journal of the Physical Society of Japan, 81, 014709 (2012).
[DOI: 10.1143/JPSJ.81.014709]

2011

Interplay of Superconductivity and Fermi-Liquid Transport in Rh-Doped CaFe₂As₂ with Lattice-Collapse Transition
M. Danura, K. Kudo, Y. Oshiro, S. Araki, T. C. Kobayashi, and M. Nohara
Journal of the Physical Society of Japan, 80, 103701 (2011).
[DOI: 10.1143/JPSJ.80.103701]
Superconductivity at 38 K in Iron-Based Compound with Platinum-Arsenide Layers Ca₁₀(Pt₄As₈)(Fe_2-xPt_xAs₂)₅
S. Kakiya, K. Kudo, Y. Nishikubo, K. Oku, E. Nishibori, H. Sawa, T. Yamamoto, T. Nozaka, and M. Nohara
Journal of the Physical Society of Japan, 80, 093704 (2011).
[DOI: 10.1143/JPSJ.80.093704]
Superconductivity in the Honeycomb-Lattice Pnictide SrPtAs
Y. Nishikubo, K. Kudo, M. Nohara,
Journal of the Physical Society of Japan, 80, 055002 (2011).
[DOI: 10.1143/JPSJ.80.055002]
Femtosecond core-level photoemission spectroscopy on 1T-TaS₂ using a 60-eV laser source
K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, S. Shin
Physical Review B, 83, 081104(R) (2011).

2010

Coexistence of superconductivity and charge density wave in SrPt₂As₂
K. Kudo, Y. Nishikubo, M. Nohara
Journal of the Physical Society of Japan, 79, 123710 (2010).
[DOI: 10.1143/JPSJ.79.123710]
Superconductivity in SrFe₂As₂ with Pt Doping
Y. Nishikubo, S. Kakiya, M. Danura, K. Kudo, M. Nohara
Journal of the Physical Society of Japan, 79, 095002 (2010).
[DOI: 10.1143/JPSJ.79.095002]>/li>
Absence of nesting in the charge-density-wave systems 1T-VS₂ as seen by photoelectron spectroscopy
M. Mulazzi, A. Chainani, N. Katayama, R. Eguchi, M. Matsunami, H. Ohashi, Y. Senba, M. Nohara, M. Uchida, H. Takagi, S. Shin,
Physical Review B, 82, 075130 (2010).
Angle-resolved photoemission observation of the superconducting-gap minimum and its relation to the nesting vector in the phonon-mediated superconductor YNi₂B₂C
T. Baba, T. Yokoya, S. Tsuda, T. Watanabe, M. Nohara, H. Takagi, T. Oguchi, S. Shin,
Physical Review B, 81, 180509(R) (2010).
Evidence for dominant Pauli paramagnetic effect in the upper critical field of single-crystalline FeTe_0.6Se_0.4
S. Khim, J. W. Kim, E. S. Choi, Y Bang, M. Nohara, H. Takagi, K. H. Kim,
Physical Review B, 81, 184511 (2010).
High Field Magnetism of the Spinel Oxide CoAl₂O₄
M. Hagiwara, S. Kimura, N. Nishihagi, T. Suzuki, M. Nohara, H. Takagi, K. Kindo,
Journal of Low Temperature Physics, 159, 11 (2010).

2009

Anomalous Metallic State in the Vicinity of Metal to Valence-Bond Solid Insulator Transition in LiVS₂
N. Katayama, M. Uchida, D. Hashizume, S. Niitaka, J. Matsuno, D. Matsumura, Y. Nishihara, J. Mizuki, N. Takeshita, A. Gauzzi, M. Nohara, and H. Takagi,
Physical Review Letters, 103, 146405 (2009).
Excitonic insulator state in Ta₂NiSe₅ probed by photoemission spectroscopy
Y. Wakisaka, T. Sudayama, K. Takubo, T. Mizokawa, M. Arita, H. Namatame, M. Taniguchi, N. Katayama, M. Nohara, and H. Takagi,
Physical Review Letters, 103, 026402 (2009).
Trimer V³⁺ spin singlet state and pseudo gap in LiVS₂ studied by ⁵¹V and ⁷Li nuclear magnetic resonance
T. Tanaka, Y. Kawasaki, S. Endou, S. Kimura, Y. Ideta, Y. Kishimoto, T. Ohno, N. Katayama, M. Nohara and H. Takagi,
Journal of the physical society of japan, 78, 054709 (2009).
Anomalous criticality in the electrical resistivity of La_2-xSr_xCuO₄,
R. A. Cooper, Y. Wang, B. Vignolle, O. J. Lipscombe, S. M. Hayden, Y. Tanabe, T. Adachi, Y. Koike, M. Nohara, H. Takagi, Cyril Proust, N. E. Hussey,
Science, 323, 603 (2009).
Local Lattice Distortion and Photo-Induced Phase Transition in Transition-Metal Compounds with Orbital Degeneracy
T. Mizokawa, K. Takubo, T. Sudayama, Y. Wakisaka, N. Takubo, K. Miyano, N. Matsumoto, S. Nagata, T. Katayama, M. Nohara, H. Takagi, M. Ikeda, N. Kojima, M. Arita, H. Namatame and M. Taniguchi,
J. Supercond. Nov. Magn., 22, 67-70 (2009).

2008

⁷Li- and ⁵¹V-NMR study of LiVS₂
T. Tanaka, Y. Kawasaki, Y. Takagishi, Y. Ideta, Y. Kishimoto, T. Ohno, N. Katayama, M. Nohara, and H.Takagi,
J. Phys. Chem. Solid, 69, 3142-3145 (2008).
Marginal breakdown of the Fermi-liquid state on the border of metallic ferromagnetism,
R. P. Smith, M. Sutherland, G. G. Lonzarich, S. S. Saxena, N. Kimura, S. Takashima, M. Nohara and H. Takagi,
Nature, 455, 1220 (2008).
Violation of the isotropic mean free path approximation for overdoped La_2-xSr_xCuO₄,
A. Narduzzo, G. Albert, M. M. J. French, N. Mangkorntong, M. Nohara, H. Takagi and N. E. Hussey,
Physical Review B, 77, 220502 (2008).
Bulk electronic structure of the antiferromagnetic superconducting phase in ErNi₂B₂C,
T. Baba, T. Yokoya, S. Tsuda, T. Kiss, T. Shimojima, K. Ishizaka, H. Takeya, K. Hirata, T. Watanabe, M. Nohara, H. Takagi, N. Nakai, K. Machida, T. Togashi, S. Watanabe, X. Y. Wang, C. T. Chen and S. Shin,
Physical Review Letters, 100, 017003 (2008).

2007

Robustness of non-Fermi-liquid behavior near the ferromagnetic critical point in clean ZrZn₂,
S. Takashima, M. Nohara, H. Ueda, N. Takeshita, C. Terakura, F. Sakai and H. Takagi,
Journal of the Physical Society of Japan, 76, 043704 (2007).
Melting of antiferromagnetic ordering in spinel oxide CoAl₂O₄,
T. Suzuki, H. Nagai, M. Nohara and H. Takagi,
Journal of Physics-Condensed Matter, 19, 145265 (2007).
Superconductivity in Rh₂Ga₉ and Ir₂Ga₉ without inversion symmetry,
T. Shibayama, M. Nohara, H. A. Katori, Y. Okamoto, Z. Hiroi and H. Takagi,
Journal of the Physical Society of Japan, 76, 073708 (2007).
New superconducting phase of CeCoIn₅ for H//c-axis at high-field and low temperature region,
T. Oyaizu, M. Saitoh, K. Kakuyanagi, Y. Furukawa, K. Kumagai, Y. Matsuda, S. Takashima, M. Nohara and H. Takagi,
Journal of Magnetism and Magnetic Materials, 310, 617-619 (2007).
Spin-liquid state in the S=1/2 hyperkagome antiferromagnet Na₄Ir₃O₈,
Y. Okamoto, M. Nohara, H. Aruga-Katori and H. Takagi,
Physical Review Letters, 99, 137207 (2007).
NMR study of the novel superconducting state in CeCoIn₅,
K. Kumagai, K. Kakuyanagi, M. Saitoh, T. Oyaizu, Y. Matsuda, S. Takanashi, M. Nohara and H. Takagi,
Journal of Magnetism and Magnetic Materials, 310, 715-717 (2007).
NMR study of a texture structure in the superconducting order parameter of CeCoIn₅,
K. Kumagai, K. Kakuyanagi, M. Saitoh, T. Oyaizu, Y. Furukawa, Y. Matsuda, S. Takashima, M. Nohara and H. Takagi,
Physica C-Superconductivity and Its Applications, 460, 653-654 (2007).
Charge-order-maximized momentum-dependent superconductivity,
T. Kiss, T. Yokoya, A. Chainani, S. Shin, T. Hanaguri, M. Nohara and H. Takagi,
Nature Physics, 3, 720-725 (2007).

2006

Anisotropic s-wave superconductors studied by angle-resolved photoemission spectroscopy,
T. Yokoya, T. Baba, S. Tsuda, T. Kiss, A. Chainani, S. Shin, T. Watanabe, M. Nohara, T. Hanaguri, H. Takagi, Y. Takano, H. Kito, J. Itoh, H. Harima and T. Oguchi,
Journal of Physics and Chemistry of Solids, 67, 277-281 (2006).
Correlated metallic phase in a doped band insulator Sr_1-xRh₂O₄,
Y. Okamoto, M. Nohara, F. Sakai and H. Takagi,
Journal of the Physical Society of Japan, 75, 023704 (2006).
Fulde-Ferrell-Larkin-Ovchinnikov state in a perpendicular field of quasi-two-dimensional CeCoIn₅,
K. Kumagai, M. Saitoh, T. Oyaizu, Y. Furukawa, S. Takashima, M. Nohara, H. Takagi and Y. Matsuda,
Physical Review Letters, 97, 227002 (2006).
Microscopic evidence of the FFLO state in CeCoIn₅ probed by NMR,
K. Kumagai, K. Kakuyanagi, M. Saitoh, S. Takashima, M. Nohara, H. Takagi and Y. Matsuda,
Physica B-Condensed Matter, 378-80, 347-350 (2006).
Microscopic evidence of the FFLO state in unconventional superconductor CeCoIn₅: Study of In-115-NMR,
K. Kumagai, K. Kakuyanagi, M. Saitoh, S. Takashima, M. Nohara, H. Takagi and Y. Matsuda,
Journal of Superconductivity and Novel Magnetism, 19, 1-4 (2006).
Watery superconductivity in misfit-layer sulfides,
N. Katayama, M. Nohara and H. Takagi,
Physica C-Superconductivity and Its Applications, 445, 35-38, (2006).
Laser-excited ultrahigh-resolution photoemission study of anisotropic s-wave superconductor YNi₂B₂C,
T. Baba, T. Yokoya, S. Tsuda, T. Kiss, T. Shimojima, S. Shin, T. Togashi, C. T. Chen, C. Q. Zhang, S. Watanabe, T. Watanabe, M. Nohara and H. Takagi,
Physica B-Condensed Matter, 378-80, 469-470 (2006).
Laser-excited ultrahigh-resolution photoemission spectroscopy of borocarbide superconductor RNi₂B₂C(R = Y and Er),
T. Baba, T. Yokoya, S. Tsuda, T. Kiss, T. Shimojima, S. Shin, T. Togashi, C. T. Chen, C. Q. Zhang, S. Watanabe, T. Watanabe, M. Nohara and H. Takagi,
Physica C-Superconductivity and Its Applications, 445, 46-49 (2006).

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