研究者詳細 - 久我　健太郎

論文 - 久我　健太郎

分割表示 >> ／全件表示85 件中 1 - 85 件目

Huge Peltier conductivity in valence fluctuating material Yb3Si5

Kuga, K; Hirata, K; Matsunami, M; Takeuchi, T

APPLIED PHYSICS LETTERS 123 ( 20 ) 2023年11月

Observation of a critical charge mode in a strange metal

Kobayashi, H; Sakaguchi, Y; Kitagawa, H; Oura, M; Ikeda, S; Kuga, K; Suzuki, S; Nakatsuji, S; Masuda, R; Kobayashi, Y; Seto, M; Yoda, Y; Tamasaku, K; Komijani, Y; Chandra, P; Coleman, P

SCIENCE 379 ( 6635 ) 908 - 911 2023年03月

Anisotropy-driven quantum criticality in an intermediate valence system

Grbic, MS; O'Farrell, ECT; Matsumoto, Y; Kuga, K; Brando, M; Küchler, R; Nevidomskyy, AH; Yoshida, M; Sakakibara, T; Kono, Y; Shimura, Y; Sutherland, ML; Takigawa, M; Nakatsuji, S

NATURE COMMUNICATIONS 13 ( 1 ) 2141 - 2141 2022年04月

Simultaneous enhancements of thermopower and electrical conductivity in quasi-one-dimensional α-YbAlB4 single crystal

Kuga, K; Matsunami, M; Singh, S; Nakatsuji, S; Takeuchi, T

APPLIED PHYSICS LETTERS 119 ( 22 ) 2021年11月

Effect of Anisotropic Hybridization in YbAlB4 Probed by Linear Dichroism in Core-Level Hard X-Ray Photoemission Spectroscopy

Kuga, K; Kanai, Y; Fujiwara, H; Yamagami, K; Hamamoto, S; Aoyama, Y; Sekiyama, A; Higashiya, A; Kadono, T; Imada, S; Yamasaki, A; Tanaka, A; Tamasaku, K; Yabashi, M; Ishikawa, T; Nakatsuji, S; Kiss, T

PHYSICAL REVIEW LETTERS 123 ( 3 ) 036404 - 036404 2019年07月

Quantum valence criticality in a correlated metal

Kuga, K; Matsumoto, Y; Okawa, M; Suzuki, S; Tomita, T; Sone, K; Shimura, Y; Sakakibara, T; Nishio-Hamane, D; Karaki, Y; Takata, Y; Matsunami, M; Eguchi, R; Taguchi, M; Chainani, A; Shin, S; Tamasaku, K; Nishino, Y; Yabashi, M; Ishikawa, T; Nakatsuji, S

SCIENCE ADVANCES 4 ( 2 ) eaao3547 - 6 2018年02月

Strange metal without magnetic criticality

Tomita, T; Kuga, K; Uwatoko, Y; Coleman, P; Nakatsuji, S

SCIENCE 349 ( 6247 ) 506 - 509 2015年07月

Magnetic order induced by Fe substitution of Al site in the heavy-fermion systems α-YbAlB<inf>4</inf> and β-YbAlB<inf>4</inf>

Kentaro Kuga, Gregory Morrison, Larico Treadwell, Julia Y. Chan, Satoru Nakatsuji

Physical Review B - Condensed Matter and Materials Physics 86 ( 22 ) 224413-1 - 6 2012年12月

Spin-Orbital Short-Range Order on a Honeycomb-Based Lattice

Nakatsuji, S; Kuga, K; Kimura, K; Satake, R; Katayama, N; Nishibori, E; Sawa, H; Ishii, R; Hagiwara, M; Bridges, F; Ito, TU; Higemoto, W; Karaki, Y; Halim, M; Nugroho, AA; Rodriguez-Rivera, JA; Green, MA; Broholm, C

SCIENCE 336 ( 6081 ) 559 - 563 2012年05月

Quantum Criticality Without Tuning in the Mixed Valence Compound β-YbAlB4

Matsumoto, Y; Nakatsuji, S; Kuga, K; Karaki, Y; Horie, N; Shimura, Y; Sakakibara, T; Nevidomskyy, AH; Coleman, P

SCIENCE 331 ( 6015 ) 316 - 319 2011年01月

Superconducting properties of the non-fermi-liquid system β-YbAlB4

Kuga, K; Karaki, Y; Matsumoto, Y; Machida, Y; Nakatsuji, S

PHYSICAL REVIEW LETTERS 101 ( 13 ) 137004-1 - 4 2008年09月

Superconductivity and quantum criticality in the heavy-fermion system β-YbAlB4

Nakatsuji, S; Kuga, K; Machida, Y; Tayama, T; Sakakibara, T; Karaki, Y; Ishimoto, H; Yonezawa, S; Maeno, Y; Pearson, E; Lonzarich, GG; Balicas, L; Lee, H; Fisk, Z

NATURE PHYSICS 4 ( 8 ) 603 - 607 2008年08月

Coupling of magnetism and transport properties to the lattice degrees of freedom in NdBaCo(2)O5+δ(δ∼0.65).

Pant H, Singh S, Brar J, Sharma P, Bharath M, Kuga K, Takeuchi T, Bindu R

Journal of physics. Condensed matter : an Institute of Physics journal 37 ( 13 ) 2025年02月

Orbital hybridisation effects in B2 phase Cr doped Co2MnAl

Pathak, S; Singh, S; Khalid, S; Kuga, K; Takeuchi, T; Bindu, R

JOURNAL OF PHYSICS-CONDENSED MATTER 35 ( 39 ) 2023年10月

Lattice effects on the physical properties of half-doped perovskite ruthenates

Brar, J; Singh, S; Kuga, K; Sharma, P; Bharath, M; Takeuchi, T; Bindu, R

JOURNAL OF PHYSICS-CONDENSED MATTER 35 ( 19 ) 2023年05月

Thermoelectric performance of Fe2V0.9W0.1Al thin films deposited on n-type Si substrates

Machda, F; Singh, S; Kuga, K; Ang, AKR; Matsunami, M; Takeuchi, T

JAPANESE JOURNAL OF APPLIED PHYSICS 62 ( 5 ) 2023年05月

Valence fluctuation in Yb3Si5 probed by synchrotron X-ray photoemission spectroscopy

Kuga, K; Matsunami, M; Fujiwara, H; Nozue, G; Ose, A; Sekiyama, A; Yasui, A; Hamamoto, S; Oura, M; Takeuchi, T

JAPANESE JOURNAL OF APPLIED PHYSICS 62 ( SD ) SD1014 - SD1014 2023年05月

Magneto-thermal conductivity effect and enhanced thermoelectric figure of merit in Ag2Te

Hirata, K; Kuga, K; Matsunami, M; Zhu, MY; Heremans, JP; Takeuchi, T

AIP ADVANCES 13 ( 1 ) 2023年01月

Multicritical phase diagram of PrMn1-xSb2 with two interacting magnetic elements

Urata, T; Takahashi, Y; Kuga, K; Takeuchi, T; Ikuta, H

PHYSICAL REVIEW B 106 ( 18 ) 2022年11月

Synthesis and structural link to the electronic and magneto-transport properties of spin-orbit Mott insulator Sr2IrO4

Sharma, P; Singh, S; Kuga, K; Takeuchi, T; Bindu, R

JOURNAL OF PHYSICS-CONDENSED MATTER 34 ( 43 ) 2022年10月

Electronic structure of silver chalcogenides investigated by hard x-ray photoemission spectroscopy and density functional theory calculations

Sato, K; Hirata, K; Singh, S; Kuga, K; Ogawa, F; Matsunami, M; Takeuchi, T

JOURNAL OF APPLIED PHYSICS 132 ( 4 ) 2022年07月

Pressure-induced changes of valence fluctuation in β-YbAlB4 probed by x-ray

Sakaguchi, Y; Ikeda, S; Kawamura, N; Mizumaki, M; Kuga, K; Suzuki, S; Sone, K; Nakatsuji, S; Kobayashi, H

PHYSICAL REVIEW B 105 ( 15 ) 2022年04月

Synergetic Enhancement of the Power Factor and Suppression of Lattice Thermal Conductivity via Electronic Structure Modification and Nanostructuring on a Ni- and B-Codoped p-Type Si-Ge Alloy for Thermoelectric Application

Muthusamy, O; Singh, S; Hirata, K; Kuga, K; Harish, SK; Shimomura, M; Adachi, M; Yamamoto, Y; Matsunami, M; Takeuchi, T

ACS APPLIED ELECTRONIC MATERIALS 3 ( 12 ) 5621 - 5631 2021年12月

High-temperature antiferromagnetism in Yb based heavy fermion systems proximate to a Kondo insulator

Suzuki, S; Takubo, K; Kuga, K; Higemoto, W; Ito, TU; Tomita, T; Shimura, Y; Matsumoto, Y; Bareille, C; Wadati, H; Shin, S; Nakatsuji, S

PHYSICAL REVIEW RESEARCH 3 ( 2 ) 2021年05月

Strong in-plane anisotropy in the electronic structure of fixed-valence β-LuAlB4

Reiss, P; Baglo, J; Tan, HE; Chen, XY; Friedemann, S; Kuga, K; Grosche, FM; Nakatsuji, S; Sutherland, M

PHYSICAL REVIEW B 102 ( 8 ) 2020年08月

Ground State Local 4f Symmetry of CeAgSb2 Probed by Linearly Polarized Hard X-ray Photoemission

H. Fujiwara, Y. Kondo, S. Hamamoto, Y. Kanai-Nakata, K. Kuga, A. Yamasaki, A. Higashiya, T. Kadono, S. Imada, T. Kiss, A. Tanaka, K. Tamasaku, M. Yabashi, T. Ishikawa, T. Ebihara, A. Sekiyama

Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019) 2020年03月

Observation of Electronic Structures in Sr-Based Iridates by Bulk-Sensitive Photoemission Spectroscopy

Koya Nakagawa, Hidenori Fujiwara, Satoru Hamamoto, Sho Miyazaki, Yasuhiro Nakatani, Kentaro Kuga, Atsushi Higashiya, Toshiharu Kadono, Kenji Tamasaku, Makina Yabashi, Tetsuya Ishikawa, Takayuki Muro, Shin Imada, Akira Sekiyama, Kouichi Takase, Hiromi Kobori, Atsushi Yamasaki

Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019) 30 011146-1 - 6 2020年03月

Local 4f Electronic Structure in PrAg2In Studied by Polarized X-Ray Absorption and Photoemission Spectroscopy

Satoru Hamamoto, Shuhei Fujioka, Yuina Kanai-Nakata, Kohei Yamagami, Kentaro Kuga, Hidenori Fujiwara, Takayuki Kiss, Hiroyuki S. Suzuki, Atsushi Higashiya, Atsushi Yamasaki, Shin Imada, Arata Tanaka, Yukiharu Takeda, Yuji Saitoh, Kenji Tamasaku, Makina Yabashi, Tetsuya Ishikawa, Akira Sekiyama

Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019) 30 011113-1 - 5 2020年03月

Linearly Polarized Hard X-Ray Photoemission Spectroscopy of PrBe13

Satoru Hamamoto, Yuina Kanai-Nakata, Hidenori Fujiwara, Kentaro Kuga, Takayuki Kiss, Atsushi Higashiya, Atsushi Yamasaki, Shin Imada, Arata Tanaka, Kenji Tamasaku, Makina Yabashi, Tetsuya Ishikawa, Hiroyuki Hidaka, Tatsuya Yanagisawa, Hiroshi Amitsuka, Akira Sekiyama

Proceedings of J-Physics 2019: International Conference on Multipole Physics and Related Phenomena 29 012010-1 - 6 2020年02月

Linear polarization-dependent core-level photoemission spectroscopy in Yb-based valence fluctuating system

Kuga, K; Kanai, Y; Fujiwara, H; Yamagami, K; Hamamoto, S; Aoyama, Y; Sekiyama, A; Higashiya, A; Kadono, T; Imada, S; Yamasaki, A; Tamasaku, K; Yabashi, M; Ishikawa, T; Nakatsuji, S; Kiss, T

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 238 146889-1 - 4 2020年01月

Observation of the 4f ground-state symmetry in strongly correlated cubic Pr compounds probed by linearly polarized 3d core-level photoemission spectroscopy

Hamamoto, S; Kanai, Y; Fujioka, S; Nakatani, Y; Fujiwara, H; Kuga, K; Kiss, T; Higashiya, A; Yamasaki, A; Imada, S; Tanaka, A; Tamasaku, K; Yabashi, M; Ishikawa, T; Hidaka, H; Yanagisawa, T; Amitsuka, H; Matsumoto, KT; Onimaru, T; Takabatake, T; Sekiyama, A

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 238 146885-1 - 4 2020年01月

CePd3と関連物質における熱電特性と電子構造の研究

尾川史武, 久我健太郎, 平田圭介, 松波雅治, 竹内恒博

日本物理学会講演概要集 75.1 ( 0 ) 1904 - 1904 2020年

Revising the 4f symmetry in CeCu2Ge2: Soft x-ray absorption and hard x-ray photoemission spectroscopy

Aratani, H; Nakatani, Y; Fujiwara, H; Kawada, M; Kanai, Y; Yamagami, K; Fujioka, S; Hamamoto, S; Kuga, K; Kiss, T; Yamasaki, A; Higashiya, A; Kadono, T; Imada, S; Tanaka, A; Tamasaku, K; Yabashi, M; Ishikawa, T; Yasui, A; Saitoh, Y; Narumi, Y; Kindo, K; Ebihara, T; Sekiyamab, A

PHYSICAL REVIEW B 98 ( 12 ) 121113\_1 - 121113\_6 2018年09月

Valence fluctuating compound α-YbAlB4 studied by 174Yb Mossbauer spectroscopy and X-ray diffraction using synchrotron radiation

Oura, M; Ikeda, S; Masuda, R; Kobayashi, Y; Seto, M; Yoda, Y; Hirao, N; Kawaguchi, SI; Ohishi, Y; Suzuki, S; Kuga, K; Nakatsuji, S; Kobayashi, H

PHYSICA B-CONDENSED MATTER 536 ( 1 ) 162 - 164 2018年05月

Hole doping effect on the electronic structure of layered oxypnictide LaOMnAs

Higashiya, A; Nakagawa, K; Yamasaki, A; Nagai, K; Fujioka, S; Kanai, Y; Yamagami, K; Fujiwara, H; Sekiyama, A; Abozeed, A; Kadono, T; Imada, S; Kuga, K; Yabashi, M; Tamasaku, K; Ishikawa, T; Toyama, S; Takase, K

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 220 58 - 60 2017年10月

Frustrated magnetism in the Heisenberg pyrochlore antiferromagnets AYb2X4 (A = Cd, Mg; X = S, Se)

Higo, T; Iritani, K; Halim, M; Higemoto, W; Ito, TU; Kuga, K; Kimura, K; Nakatsuji, S

PHYSICAL REVIEW B 95 ( 17 ) 174443-1 - 7 2017年05月

Anisotropic Thermal Expansion of α-YbAlB<inf>4</inf>

Yosuke Matsumoto, K. Kuga, T. Tomita, R. Küchler, S. Nakatsuji

Journal of Physics: Conference Series 807 ( 2 ) 2017年04月

Lifetime-Broadening-Suppressed X-ray Absorption Spectrum of β-YbAlB4 Deduced from Yb 3d → 2p Resonant X-ray Emission Spectroscopy

Kawamura, N; Kanai, N; Hayashi, H; Matsuda, YH; Mizumaki, M; Kuga, K; Nakatsuji, S; Watanabe, S

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 86 ( 1 ) 014711-1 - 7 2017年01月

Pressure-induced magnetic transition exceeding 30 K in the Yb-based heavy-fermion β-YbAlB4

Tomita, T; Kuga, K; Uwatoko, Y; Nakatsuji, S

PHYSICAL REVIEW B 94 ( 24 ) 245130-1 - 6 2016年12月

Quantum criticality and inhomogeneous magnetic order in Fe-doped α-YbAlB4

MacLaughlin, DE; Kuga, K; Shu, L; Bernal, OO; Ho, PC; Nakatsuji, S; Huang, K; Ding, ZF; Tan, C; Zhang, J

PHYSICAL REVIEW B 93 ( 21 ) 214421-1 - 8 2016年06月

Pressure-Induced Local Structural Changes in Heavy Fermion β-YbAlB4

Sakaguchi, Y; Ikeda, S; Kuga, K; Suzuki, S; Nakatsuji, S; Hirao, N; Ohishi, Y; Kobayashi, H

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 85 ( 2 ) 023602-1 - 4 2016年03月

High Magnetic Transition Temperature and Semiconductor like Transport Properties of Mn-doped α-YbAlB<inf>4</inf>

S. Suzuki, T. Tomita, Y. Shimura, K. Kuga, Y. Matsumoto, S. Nakatsuji

Journal of Physics: Conference Series 683 ( 1 ) 2016年02月

Site-selective 11B NMR studies on YbAlB<inf>4</inf>

S. Takano, M. S. Grbic, K. Kimura, M. Yoshida, M. Takigawa, E. C.T.O. Farrell, K. Kuga, S. Nakatsuji, H. Harima

Journal of Physics: Conference Series 683 ( 1 ) 2016年02月

Quantum Criticality Beneath the Superconducting Dome in β-YbAlB<inf>4</inf>

T. Tomita, K. Kuga, Y. Uwatoko, S. Nakatsuji

Journal of Physics: Conference Series 683 ( 1 ) 2016年02月

X-ray Absorption Spectroscopy in the Heavy Fermion Compound α-YbAlB4 at High Magnetic Fields

Terashima, TT; Matsuda, YH; Kuga, K; Suzuki, S; Matsumoto, Y; Nakatsuji, S; Kondo, A; Kindo, K; Kawamura, N; Mizumaki, M; Inami, T

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 84 ( 11 ) 114715-1 - 4 2015年11月

Magnetic Order in the Frustrated Ising Quasi-One Dimensional Compound NaCo(acac)3•Benzene

Karaki, Y; Kuga, K; Kimura, K; Nakatsuji, S; Matsubayashi, K; Uwatoko, Y

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 84 ( 8 ) 084708-1 - 5 2015年08月

Intact quasiparticles at an unconventional quantum critical point

Sutherland, ML; O'Farrell, ECT; Toews, WH; Dunn, J; Kuga, K; Nakatsuji, S; Machida, Y; Izawa, K; Hill, RW

PHYSICAL REVIEW B 92 ( 4 ) 2015年07月

Conduction electron spin resonance in the α-Yb1-xFexAlB4 (0 ≤ x ≤ 0.50) and α-LuAlB4 compounds

Holanda, LM; Lesseux, GG; Magnavita, ET; Ribeiro, RA; Nakatsuji, S; Kuga, K; Fisk, Z; Oseroff, SB; Urbano, RR; Rettori, C; Pagliuso, PG

JOURNAL OF PHYSICS-CONDENSED MATTER 27 ( 25 ) 2015年07月

Field Evolution of Quantum Critical and Heavy Fermi-Liquid Components in the Magnetization of the Mixed Valence Compound β-YbAlB4

Matsumoto, Y; Kuga, K; Karaki, Y; Shimura, Y; Sakakibara, T; Tokunaga, M; Kindo, K; Nakatsuji, S

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 84 ( 2 ) 024710-1 - 7 2015年02月

Unconventional Quantum Criticality in β-YbAlB<inf>4</inf> Detached from Its Magnetically Ordered Phase

Takahiro Tomita, Kentaro Kuga, Yoshiya Uwatoko, Piers Coleman, Satoru Nakatsuji

Physics Procedia 75 482 - 487 2015年

Magnetization of Yb-Based Mixed-Valent Compounds at Megagauss Fields

T. Terashima, Y. H. Matsuda, K. Kuga, Y. Matsumoto, S. Nakatsuji, K. Yoshimura, T. Nakahigashi

JPS Conference Proceedings 3 011027-1 - 5 2014年06月

Two Magnetic Phases in alpha-YbAl1−xFexB4

Kentaro Kuga, Shintaro Suzuki, Satoru Nakatsuji

JPS Conference Proceedings 3 012013-1 - 4 2014年06月

Suppression of the Heavy Fermion State in Magnetic Fields in the Mixed Valent alpha-YbAIB4

Yosuke Matsumoto, Kuga Kentaro, Satoru Nakatsuji

JPS Conference Proceedings 3 011076-1 - 5 2014年06月

Superconducting Properties of the Ferroquadrupolar Cubic Gamma3 Compound PrTi2Al20

Akito Sakai, Kentaro Kuga, Satoru Nakatsuji

JPS Conference Proceedings 3 011066-1 - 6 2014年06月

Structural and Magnetic Properties of alpha-Yb(Al1−xFex)B4 under Hydrostatic Pressure

Yui Sakaguchi, Shugo Ikeda, Kentaro Kuga, Satoru Nakatsuji, Naohisa Hirao, Yasuo Ohishi, Hisao Kobayashi

JPS Conference Proceedings 3 011059-1 - 6 2014年06月

Anisotropic transverse magnetoresistivity in α-YbAlB<inf>4</inf>

Yosuke Matsumoto, Jinpyo Hong, Kentaro Kuga, Satoru Nakatsuji

Journal of Physics: Conference Series 592 ( 1 ) 012086-1 - 6 2014年

Synchrotron X-ray spectroscopy study on the valence state and magnetization in α-YbAl<inf>1-x</inf>Fe<inf>x</inf>B<inf>4</inf> (x =0.115) at low temperatures and high magnetic fields

T. Terashima, Y. H. Matsuda, K. Kuga, S. Suzuki, Y. Matsumoto, S. Nakatsuji, A. Kondo, K. Kindo, N. Kawamura, M. Mizumaki, T. Inami

Journal of Physics: Conference Series 592 ( 1 ) 012020-1 - 6 2014年

High pressure measurements of the resistivity of β-YbAlB<inf>4</inf>

T. Tomita, K. Kuga, Y. Uwatoko, S. Nakatsuji

Journal of Physics: Conference Series 592 ( 1 ) 012019-1 - 5 2014年

Chemical effects of high-resolution YbLγ4 emission spectra: a possible probe for chemical analysis

Hayashi, H; Kanai, N; Kawamura, N; Matsuda, YH; Kuga, K; Nakatsuji, S; Yamashita, T; Ohara, S

X-RAY SPECTROMETRY 42 ( 6 ) 450 - 455 2013年11月

Magnetic order induced by Fe doping in the intermediate valence system β-YbAlB4

Kuga, K; Nakatsuji, S

JOURNAL OF THE KOREAN PHYSICAL SOCIETY 63 ( 3 ) 549 - 550 2013年08月

Mossbauer spectroscopy of Fe-doped valence-fluctuating α-YbAlB4

Sakaguchi, Y; Ikeda, S; Kobayashi, H; Kuga, K; Sone, K; Nakatsuji, S

JOURNAL OF THE KOREAN PHYSICAL SOCIETY 62 ( 12 ) 2146 - 2149 2013年07月

Synchrotron X-ray spectroscopy study on the valence state in α- and β-YbAlB4 at low temperatures and high magnetic fields

Matsuda, YH; Nakamura, T; Kuga, K; Nakatsuji, S; Michimura, S; Inami, T; Kawamura, N; Mizumaki, M

JOURNAL OF THE KOREAN PHYSICAL SOCIETY 62 ( 12 ) 1778 - 1781 2013年07月

Conduction electron spin resonance in AlB2

Holanda, LM; Mendonça-Ferreira, L; Ribeiro, RA; Osorio-Guillén, JM; Dalpian, GM; Kuga, K; Nakatsuji, S; Fisk, Z; Urbano, RR; Pagliuso, PG; Rettori, C

JOURNAL OF PHYSICS-CONDENSED MATTER 25 ( 21 ) 216001 - 216001 2013年05月

Magnetic order induced by Fe substitution of Al site in the heavy-fermion systems α-YbAlB4 and β-YbAlB4

Kuga, K; Morrison, G; Treadwell, L; Chan, JY; Nakatsuji, S

PHYSICAL REVIEW B 86 ( 22 ) 2012年12月

Thermoelectric Response Near a Quantum Critical Point of β-YbAlB4 and YbRh2Si2: A Comparative Study

Machida, Y; Tomokuni, K; Ogura, C; Izawa, K; Kuga, K; Nakatsuji, S; Lapertot, G; Knebel, G; Brison, JP; Flouquet, J

PHYSICAL REVIEW LETTERS 109 ( 15 ) 156405-1 - 5 2012年10月

Superconductivity in the Ferroquadrupolar State in the Quadrupolar Kondo Lattice PrTi2Al20

Sakai, A; Kuga, K; Nakatsuji, S

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 81 ( 8 ) 083702-1 - 4 2012年08月

T/B scaling of magnetization in the mixed valent compound β-YbAlB <inf>4</inf>

Yosuke Matsumoto, S. Nakatsuji, K. Kuga, Y. Karaki, Y. Shimura, T. Sakakibara, A. H. Nevidomskyy, P. Coleman

Journal of Physics: Conference Series 391 ( 1 ) 012041-1 - 4 2012年

Anisotropic heavy-Fermi-liquid formation in valence-fluctuating α-YbAlB4

Matsumoto, Y; Kuga, K; Tomita, T; Karaki, Y; Nakatsuji, S

PHYSICAL REVIEW B 84 ( 12 ) 125126-1 - 7 2011年09月

Quantum Critical Kondo Quasiparticles Probed by ESR in β-YbAlB4

Holanda, LM; Vargas, JM; Iwamoto, W; Rettori, C; Nakatsuji, S; Kuga, K; Fisk, Z; Oseroff, SB; Pagliuso, PG

PHYSICAL REVIEW LETTERS 107 ( 2 ) 026402-1 - 4 2011年07月

Anisotropic Electrical Transport in the Heavy Fermion Compound α-YbAlB4

Kuga, K; Matsumoto, Y; Horie, N; Nakatsuji, S

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 80 ( SUPPL. A ) SA089-1 - 2 2011年07月

Thermoelectric coefficients of the quantum critical β-YbAlB4

Machida, Y; Ogura, C; Izawa, K; Kuga, K; Nakatsuji, S

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 80 ( SUPPL. A ) SA088-1 - 3 2011年07月

NMR/NQR and specific heat studies of iron pnictide superconductor KFe2As2

Fukazawa, H; Saito, T; Yamada, Y; Kondo, K; Hirano, M; Kohori, Y; Kuga, K; Sakai, A; Matsumoto, Y; Nakatsuji, S; Kihou, K; Iyo, A; Lee, CH; Eisaki, H

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 80 ( Suppl.A ) SA118 - SA118 2011年07月

Low Temperature Magnetic Properties of Pr(Cu,Ga)13 with Orbitally Degenerate Ground State

Shimura, Y; Sakakibara, T; Kuga, K; Cho, JY; Chan, JY

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 80 ( SUPPL. A ) SA072-1 - 3 2011年07月

Kondo Lattice Behavior in the Valence Fluctuating Systems α- and β-YbAlB4

Matsumoto, Y; Kuga, K; Horie, N; Nakatsuji, S

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 80 ( SUPPL. A ) SA090-1 - 3 2011年07月

Local moment behaviors of the valence fluctuating systems β-YbAlB <inf>4</inf> and α-YbAlB<inf>4</inf>

Y. Matsumoto, K. Kuga, N. Horie, S. Nakatsuji

Journal of Physics: Conference Series 273 ( 1 ) 012006-1 - 4 2011年

Low-temperature magnetic properties of Pr(Cu,Ga)<inf>12.85</inf>

Y. Shimura, T. Sakakibara, K. Kuga, J. Y. Cho, J. Y. Chan

Journal of Physics: Conference Series 273 ( 1 ) 012054-1 - 4 2011年

Strong Valence Fluctuation in the Quantum Critical Heavy Fermion Superconductor β-YbAlB4: A Hard X-Ray Photoemission Study

Okawa, M; Matsunami, M; Ishizaka, K; Eguchi, R; Taguchi, M; Chainani, A; Takata, Y; Yabashi, M; Tamasaku, K; Nishino, Y; Ishikawa, T; Kuga, K; Horie, N; Nakatsuji, S; Shin, S

PHYSICAL REVIEW LETTERS 104 ( 24 ) 247201-1 - 4 2010年06月

Low-temperature magnetization of the quantum critical heavy fermion superconductor β-YbAlB4

Matsumoto, Y; Kuga, K; Karaki, Y; Tomita, T; Nakatsuji, S

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 247 ( 3 ) 720 - 722 2010年03月

Pronounced non-Fermi-liquid behavior of the quantum critical heavy fermion superconductor β-YbAlB4

Nakatsuji, S; Kuga, K; Tomita, T; Matsumoto, Y

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 247 ( 3 ) 485 - 489 2010年03月

Crystal growth, structure, and physical properties of Ln(Cu, Al)12 (Ln = Y, Ce, Pr, Sm, and Yb) and Ln(Cu, Ga)12 (Ln = Y, Gd-Er, and Yb)

Drake, BL; Capan, C; Cho, JY; Nambu, Y; Kuga, K; Xiong, YM; Karki, AB; Nakatsuji, S; Adams, PW; Young, DP; Chan, JY

JOURNAL OF PHYSICS-CONDENSED MATTER 22 ( 6 ) 2010年02月

Possible Multiple Gap Superconductivity with Line Nodes in Heavily Hole-Doped Superconductor KFe2AS2 Studied by 75As Nuclear Quadrupole Resonance and Specific Heat

Fukazawa, H; Yamada, Y; Kondo, K; Saito, T; Kohori, Y; Kuga, K; Matsumoto, Y; Nakatsuji, S; Kito, H; Shirage, PM; Kihou, K; Takeshita, N; Lee, CH; Iyo, A; Eisaki, H

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 78 ( 8 ) 083712-1 - 4 2009年08月

Crystal Growth, Structure, and Physical Properties of Ln(Cu,Ga)13-x (Ln = La-Nd, Eu; x≈0.2)

Cho, JY; Thomas, EL; Nambu, Y; Capan, C; Karki, AB; Young, DP; Kuga, K; Nakatsuji, S; Chan, JY

CHEMISTRY OF MATERIALS 21 ( 14 ) 3072 - 3078 2009年07月

Role of f Electrons in the Fermi Surface of the Heavy Fermion Superconductor β-YbAlB4

O'Farrell, ECT; Tompsett, DA; Sebastian, SE; Harrison, N; Capan, C; Balicas, L; Kuga, K; Matsuo, A; Kindo, K; Tokunaga, M; Nakatsuji, S; Csányi, G; Fisk, Z; Sutherland, ML

PHYSICAL REVIEW LETTERS 102 ( 21 ) 216402-1 - 4 2009年05月

Crystal Growth, Transport, and Magnetic Properties of YbCoGa5

Okudzeto, EK; Kuga, K; Nakatsuji, S; Chan, JY

CRYSTAL GROWTH & DESIGN 9 ( 4 ) 1956 - 1959 2009年04月

Crystal structure and physical properties of polymorphs of LnAlB4 (Ln = Yb, Lu)

Macaluso, RT; Nakatsuji, S; Kuga, K; Thomas, EL; Machida, Y; Maeno, Y; Fisk, Z; Chan, JY

CHEMISTRY OF MATERIALS 19 ( 8 ) 1918 - 1922 2007年04月

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