Papers - Kuga Kentaro
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Huge Peltier conductivity in valence fluctuating material Yb<sub>3</sub>Si<sub>5</sub>
Kuga, K., Hirata, K., Matsunami, M., Takeuchi, T.
Applied Physics Letters 123 ( 20 ) 2023.11
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Observation of a critical charge mode in a strange metal
Hisao Kobayashi, Yui Sakaguchi, Hayato Kitagawa, Momoko Oura, Shugo Ikeda, Kentaro Kuga, Shintaro Suzuki, Satoru Nakatsuji, Ryo Masuda, Yasuhiro Kobayashi, Makoto Seto, Yoshitaka Yoda, Kenji Tamasaku, Yashar Komijani, Premala Chandra, Piers Coleman
Science 379 ( 6635 ) 908 - 911 2023.3
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Anisotropy-driven quantum criticality in an intermediate valence system.
Mihael S Grbić, Eoin C T O'Farrell, Yosuke Matsumoto, Kentaro Kuga, Manuel Brando, Robert Küchler, Andriy H Nevidomskyy, Makoto Yoshida, Toshiro Sakakibara, Yohei Kono, Yasuyuki Shimura, Michael L Sutherland, Masashi Takigawa, Satoru Nakatsuji
Nature communications 13 ( 1 ) 2141 - 2141 2022.4
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Simultaneous enhancements of thermopower and electrical conductivity in quasi-one-dimensional α-YbAlB4 single crystal
Kentaro Kuga, Masaharu Matsunami, Saurabh Singh, Satoru Nakatsuji, Tsunehiro Takeuchi
Applied Physics Letters 119 ( 22 ) 2021.11
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Effect of Anisotropic Hybridization in YbAlB4 Probed by Linear Dichroism in Core-Level Hard X-Ray Photoemission Spectroscopy
Kentaro Kuga, Yuina Kanai, Hidenori Fujiwara, Kohei Yamagami, Satoru Hamamoto, Yuichi Aoyama, Akira Sekiyama, Atsushi Higashiya, Toshiharu Kadono, Shin Imada, Atsushi Yamasaki, Arata Tanaka, Kenji Tamasaku, Makina Yabashi, Tetsuya Ishikawa, Satoru Nakatsuji, Takayuki Kiss
Physical Review Letters 123 ( 3 ) 036404 - 036404 2019.7
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Quantum valence criticality in a correlated metal
Kentaro Kuga, Yosuke Matsumoto, Mario Okawa, Shintaro Suzuki, Takahiro Tomita, Keita Sone, Yasuyuki Shimura, Toshiro Sakakibara, Daisuke Nishio-Hamane, Yoshitomo Karaki, Yasutaka Takata, Masaharu Matsunami, Ritsuko Eguchi, Munetaka Taguchi, Ashish Chainani, Shik Shin, Kenji Tamasaku, Yoshinori Nishino, Makina Yabashi, Tetsuya Ishikawa, Satoru Nakatsuji
Science Advances 4 ( 2 ) eaao3547 - 6 2018.2
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Strange metal without magnetic criticality
Takahiro Tomita, Kentaro Kuga, Yoshiya Uwatoko, Piers Coleman, Satoru Nakatsuji
Science 349 ( 6247 ) 506 - 509 2015.7
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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 2012.12
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Spin-orbital short-range order on a honeycomb-based lattice
S. Nakatsuji, K. Kuga, K. Kimura, R. Satake, N. Katayama, E. Nishibori, H. Sawa, R. Ishii, M. Hagiwara, F. Bridges, T. U. Ito, W. Higemoto, Y. Karaki, M. Halim, A. A. Nugroho, J. A. Rodriguez-Rivera, M. A. Green, C. Broholm
Science 336 ( 6081 ) 559 - 563 2012.5
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Quantum criticality without tuning in the mixed valence compound β-YbAlB<inf>4</inf>
Yosuke Matsumoto, Satoru Nakatsuji, Kentaro Kuga, Yoshitomo Karaki, Naoki Horie, Yasuyuki Shimura, Toshiro Sakakibara, Andriy H. Nevidomskyy, Piers Coleman
Science 331 ( 6015 ) 316 - 319 2011.1
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Superconducting properties of the non-fermi-liquid system β-YbAlB4
K. Kuga, Y. Karaki, Y. Matsumoto, Y. Machida, S. Nakatsuji
Physical Review Letters 101 ( 13 ) 137004-1 - 4 2008.9
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Superconductivity and quantum criticality in the heavy-fermion system β-YbAlB4
S. Nakatsuji, K. Kuga, Y. Machida, T. Tayama, T. Sakakibara, Y. Karaki, H. Ishimoto, S. Yonezawa, Y. Maeno, E. Pearson, G. G. Lonzarich, L. Balicas, H. Lee, Z. Fisk
Nature Physics 4 ( 8 ) 603 - 607 2008.8
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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 ) 2025.2
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Orbital hybridisation effects in B2 phase Cr doped Co2MnAl.
Swati Pathak, Saurabh Singh, S Khalid, Kentaro Kuga, Tsunehiro Takeuchi, R Bindu
Journal of physics. Condensed matter : an Institute of Physics journal 35 ( 39 ) 2023.10
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Lattice effects on the physical properties of half-doped perovskite ruthenates
Jaskirat Brar, Saurabh Singh, Kentaro Kuga, Priyamedha Sharma, M. Bharath, Tsunehiro Takeuchi, R. Bindu
JOURNAL OF PHYSICS-CONDENSED MATTER 35 ( 19 ) 2023.5
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Thermoelectric performance of Fe<sub>2</sub>V<sub>0.9</sub>W<sub>0.1</sub>Al thin films deposited on n-type Si substrates
Machda, F., Singh, S., Kuga, K., Ang, A.K.R., Matsunami, M., Takeuchi, T.
Japanese Journal of Applied Physics 62 ( 5 ) 2023.5
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Valence fluctuation in Yb<sub>3</sub>Si<sub>5</sub> probed by synchrotron X-ray photoemission spectroscopy
Kentaro Kuga, Masaharu Matsunami, Hidenori Fujiwara, Goro Nozue, Akane Ose, Akira Sekiyama, Akira Yasui, Satoru Hamamoto, Masaki Oura, Tsunehiro Takeuchi
Japanese Journal of Applied Physics 62 ( SD ) SD1014 - SD1014 2023.5
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Magneto-thermal conductivity effect and enhanced thermoelectric figure of merit in Ag2Te
Keisuke Hirata, Kentaro Kuga, Masaharu Matsunami, Minyue Zhu, Joseph P. Heremans, Tsunehiro Takeuchi
AIP Advances 13 ( 1 ) 2023.1
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Multicritical phase diagram of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>PrMn</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>Sb</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> with two interacting magnetic elements
Takahiro Urata, Yusuke Takahashi, Kentaro Kuga, Tsunehiro Takeuchi, Hiroshi Ikuta
Physical Review B 106 ( 18 ) 2022.11
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Synthesis and structural link to the electronic and magneto-transport properties of spin-orbit Mott insulator Sr2IrO4.
Priyamedha Sharma, Saurabh Singh, Kentaro Kuga, Tsunehiro Takeuchi, R Bindu
Journal of physics. Condensed matter : an Institute of Physics journal 34 ( 43 ) 2022.10
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Electronic structure of silver chalcogenides investigated by hard x-ray photoemission spectroscopy and density functional theory calculations
K. Sato, K. Hirata, S. Singh, K. Kuga, F. Ogawa, M. Matsunami, T. Takeuchi
Journal of Applied Physics 132 ( 4 ) 2022.7
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Pressure-induced changes of valence fluctuation in beta-YbAlB4 probed by x-ray
Yui Sakaguchi, Shugo Ikeda, Naomi Kawamura, Masaichiro Mizumaki, Kentaro Kuga, Shintaro Suzuki, Keita Sone, Satoru Nakatsuji, Hisao Kobayashi
PHYSICAL REVIEW B 105 ( 15 ) 2022.4
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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
Omprakash Muthusamy, Saurabh Singh, Keisuke Hirata, Kentaro Kuga, Santhana Krishnan Harish, Masaru Shimomura, Masahiro Adachi, Yoshiyuki Yamamoto, Masaharu Matsunami, Tsunehiro Takeuchi
ACS Applied Electronic Materials 3 ( 12 ) 5621 - 5631 2021.12
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High-temperature antiferromagnetism in Yb based heavy fermion systems proximate to a Kondo insulator
Shintaro Suzuki, Kou Takubo, Kentaro Kuga, Wataru Higemoto, Takashi U. Ito, Takahiro Tomita, Yasuyuki Shimura, Yosuke Matsumoto, Cédric Bareille, Hiroki Wadati, Shik Shin, Satoru Nakatsuji
Physical Review Research 3 ( 2 ) 2021.5
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Strong in-plane anisotropy in the electronic structure of fixed-valence β- LuAlB4
Pascal Reiss, Jordan Baglo, Hong'En Tan, Xiaoye Chen, Sven Friedemann, Kentaro Kuga, F. Malte Grosche, Satoru Nakatsuji, Michael Sutherland
Physical Review B 102 ( 8 ) 2020.8
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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) 2020.3
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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 2020.3
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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 2020.3
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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 2020.2
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Linear polarization-dependent core-level photoemission spectroscopy in Yb-based valence fluctuating system
Kentaro Kuga, Yuina Kanai, Hidenori Fujiwara, Kohei Yamagami, Satoru Hamamoto, Yuichi Aoyama, Akira Sekiyama, Atsushi Higashiya, Toshiharu Kadono, Shin Imada, Atsushi Yamasaki, Kenji Tamasaku, Makina Yabashi, Tetsuya Ishikawa, Satoru Nakatsuji, Takayuki Kiss
Journal of Electron Spectroscopy and Related Phenomena 238 146889-1 - 4 2020.1
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Observation of the 4f ground-state symmetry in strongly correlated cubic Pr compounds probed by linearly polarized 3d core-level photoemission spectroscopy
S. Hamamoto, Y. Kanai, S. Fujioka, Y. Nakatani, H. Fujiwara, K. Kuga, T. Kiss, A. Higashiya, A. Yamasaki, S. Imada, A. Tanaka, K. Tamasaku, M. Yabashi, T. Ishikawa, H. Hidaka, T. Yanagisawa, H. Amitsuka, K. T. Matsumoto, T. Onimaru, T. Takabatake, A. Sekiyama
Journal of Electron Spectroscopy and Related Phenomena 238 146885-1 - 4 2020.1
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Thermoelectric properties and electronic structure for CePd<sub>3</sub> and related materials
Ogawa F., Kuga K., Hirata K., Matsunami M., Takeuchi T.
Meeting Abstracts of the Physical Society of Japan 75.1 ( 0 ) 1904 - 1904 2020
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Revising the 4f symmetry in CeCu2Ge2: Soft x-ray absorption and hard x-ray photoemission spectroscopy
H. Aratani, Y. Nakatani, H. Fujiwara, M. Kawada, Y. Kanai, K. Yamagami, S. Fujioka, S. Hamamoto, K. Kuga, T. Kiss, A. Yamasaki, A. Higashiya, T. Kadono, S. Imada, A. Tanaka, K. Tamasaku, M. Yabashi, T. Ishikawa, A. Yasui, Y. Saitoh, Y. Narumi, K. Kindo, T. Ebihara, A. Sekiyama
Physical Review B 98 ( 12 ) 121113\_1 - 121113\_6 2018.9
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Valence fluctuating compound α-YbAlB<inf>4</inf> studied by <sup>174</sup>Yb Mössbauer spectroscopy and X-ray diffraction using synchrotron radiation
Momoko Oura, Shugo Ikeda, Ryo Masuda, Yasuhiro Kobayashi, Makoto Seto, Yoshitaka Yoda, Naohisa Hirao, Saori I. Kawaguchi, Yasuo Ohishi, Shintaro Suzuki, Kentaro Kuga, Satoru Nakatsuji, Hisao Kobayashi
Physica B: Condensed Matter 536 ( 1 ) 162 - 164 2018.5
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Hole doping effect on the electronic structure of layered oxypnictide LaOMnAs
A. Higashiya, K. Nakagawa, A. Yamasaki, K. Nagai, S. Fujioka, Y. Kanai, K. Yamagami, H. Fujiwara, A. Sekiyama, Amina Abozeed, T. Kadono, S. Imada, K. Kuga, M. Yabashi, K. Tamasaku, T. Ishikawa, S. Toyama, K. Takase
Journal of Electron Spectroscopy and Related Phenomena 220 58 - 60 2017.10
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Frustrated magnetism in the Heisenberg pyrochlore antiferromagnets AYb2X4 (A=Cd, Mg; X= S, Se)
Tomoya Higo, Kensuke Iritani, Mario Halim, Wataru Higemoto, Takashi U. Ito, Kentaro Kuga, Kenta Kimura, Satoru Nakatsuji
Physical Review B 95 ( 17 ) 174443-1 - 7 2017.5
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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 ) 2017.4
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Lifetime-broadening-suppressed X-ray absorption spectrum of β-YbAlB4 deduced from Yb 3d → 2p resonant X-ray emission spectroscopy
Naomi Kawamura, Noriko Kanai, Hisashi Hayashi, Yasuhiro H. Matsuda, Masaichiro Mizumaki, Kentaro Kuga, Satoru Nakatsuji, Shinji Watanabe
Journal of the Physical Society of Japan 86 ( 1 ) 014711-1 - 7 2017.1
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Pressure-induced magnetic transition exceeding 30 K in the Yb-based heavy-fermion β-YbAlB4
Takahiro Tomita, Kentaro Kuga, Yoshiya Uwatoko, Satoru Nakatsuji
Physical Review B 94 ( 24 ) 245130-1 - 6 2016.12
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Quantum criticality and inhomogeneous magnetic order in Fe-doped α-YbAlB4
D. E. MacLaughlin, K. Kuga, Lei Shu, O. O. Bernal, P. C. Ho, S. Nakatsuji, K. Huang, Z. F. Ding, C. Tan, Jian Zhang
Physical Review B 93 ( 21 ) 214421-1 - 8 2016.6
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Pressure-induced local structural changes in heavy fermion β-YbAlB<inf>4</inf>
Yui Sakaguchi, Shugo Ikeda, Kentaro Kuga, Shintaro Suzuki, Satoru Nakatsuji, Naohisa Hirao, Yasuo Ohishi, Hisao Kobayashi
Journal of the Physical Society of Japan 85 ( 2 ) 023602-1 - 4 2016.3
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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 ) 2016.2
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Site-selective <sup>11</sup>B 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 ) 2016.2
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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 ) 2016.2
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X-ray Absorption Spectroscopy in the Heavy Fermion Compound α-YbAlB4 at High Magnetic Fields
Taku T. Terashima, Yasuhiro H. Matsuda, Kentaro Kuga, Shintaro Suzuki, Yosuke Matsumoto, Satoru Nakatsuji, Akihiro Kondo, Koichi Kindo, Naomi Kawamura, Masaichiro Mizumaki, Toshiya Inami
Journal of the Physical Society of Japan 84 ( 11 ) 114715-1 - 4 2015.11
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Magnetic order in the frustrated ising quasi-one dimensional compound NaCo(acac)<inf>3</inf>·benzene
Yoshitomo Karaki, Kentaro Kuga, Kenta Kimura, Satoru Nakatsuji, Kazuyuki Matsubayashi, Yoshiya Uwatoko
Journal of the Physical Society of Japan 84 ( 8 ) 084708-1 - 5 2015.8
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Intact quasiparticles at an unconventional quantum critical point
M. L. Sutherland, E. C.T. O'Farrell, W. H. Toews, J. Dunn, K. Kuga, S. Nakatsuji, Y. Machida, K. Izawa, R. W. Hill
Physical Review B - Condensed Matter and Materials Physics 92 ( 4 ) 2015.7
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Conduction electron spin resonance in the α-Yb<inf>1-x</inf>xFe<inf>x</inf>AlB<inf>4</inf> (0≤x ≤0.50) and α-LuAlB<inf>4</inf>compounds
L. M. Holanda, G. G. Lesseux, E. T. Magnavita, R. A. Ribeiro, S. Nakatsuji, K. Kuga, Z. Fisk, S. B. Oseroff, R. R. Urbano, C. Rettori, P. G. Pagliuso
Journal of Physics Condensed Matter 27 ( 25 ) 2015.7
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Field evolution of quantum critical and heavy fermi-liquid components in the magnetization of the mixed valence compound &β;-YbAlB4
Yosuke Matsumoto, Kentaro Kuga, Yoshitomo Karaki, Yasuyuki Shimura, Toshiro Sakakibara, Masashi Tokunaga, Koichi Kindo, Satoru Nakatsuji
Journal of the Physical Society of Japan 84 ( 2 ) 024710-1 - 7 2015.2
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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
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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 2014.6
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Two Magnetic Phases in alpha-YbAl1−xFexB4
Kentaro Kuga, Shintaro Suzuki, Satoru Nakatsuji
JPS Conference Proceedings 3 012013-1 - 4 2014.6
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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 2014.6
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Superconducting Properties of the Ferroquadrupolar Cubic Gamma3 Compound PrTi2Al20
Akito Sakai, Kentaro Kuga, Satoru Nakatsuji
JPS Conference Proceedings 3 011066-1 - 6 2014.6
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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 2014.6
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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
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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
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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
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Chemical effects of high-resolution yblγ<inf>4</inf> emission spectra: A possible probe for chemical analysis
Hisashi Hayashi, Noriko Kanai, Naomi Kawamura, Yasuhiro H. Matsuda, Kentaro Kuga, Satoru Nakatsuji, Tetsuro Yamashita, Shigeo Ohara
X-Ray Spectrometry 42 ( 6 ) 450 - 455 2013.11
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Magnetic order induced by Fe doping in the intermediate valence system β-YbAlB<inf>4</inf>
K. Kuga, S. Nakatsuji
Journal of the Korean Physical Society 63 ( 3 ) 549 - 550 2013.8
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Mössbauer spectroscopy of Fe-doped valence-fluctuating α-YbAlB<inf>4</inf>
Yui Sakaguchi, Shugo Ikeda, Hisao Kobayashi, Kentaro Kuga, Keita Sone, Satoru Nakatsuji
Journal of the Korean Physical Society 62 ( 12 ) 2146 - 2149 2013.7
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Synchrotron X-ray spectroscopy study on the valence state in α- and β-YbAlB<inf>4</inf> at low temperatures and high magnetic fields
Y. H. Matsuda, T. Nakamura, K. Kuga, S. Nakatsuji, S. Michimura, T. Inami, N. Kawamura, M. Mizumaki
Journal of the Korean Physical Society 62 ( 12 ) 1778 - 1781 2013.7
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Conduction electron spin resonance in AlB<sub>2</sub>
L M Holanda, L Mendonça-Ferreira, R A Ribeiro, J M Osorio-Guillén, G M Dalpian, K Kuga, S Nakatsuji, Z Fisk, R R Urbano, P G Pagliuso, C Rettori
Journal of Physics: Condensed Matter 25 ( 21 ) 216001 - 216001 2013.5
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Magnetic order induced by Fe substitution of Al site in the heavy-fermion systems α-YbAlB<sub>4</sub> and β-YbAlB<sub>4</sub>
Kuga, K; Morrison, G; Treadwell, L; Chan, JY; Nakatsuji, S
PHYSICAL REVIEW B 86 ( 22 ) 2012.12
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Thermoelectric response near a quantum critical point of β-YbAlB <inf>4</inf> and YbRh <inf>2</inf>Si <inf>2</inf>: A comparative study
Y. MacHida, K. Tomokuni, C. Ogura, K. Izawa, K. Kuga, S. Nakatsuji, G. Lapertot, G. Knebel, J. P. Brison, J. Flouquet
Physical Review Letters 109 ( 15 ) 156405-1 - 5 2012.10
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Superconductivity in the ferroquadrupolar state in the quadrupolar kondo lattice PrTi <inf>2</inf>Al <inf>20</inf>
Akito Sakai, Kentaro Kuga, Satoru Nakatsuji
Journal of the Physical Society of Japan 81 ( 8 ) 083702-1 - 4 2012.8
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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
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Anisotropic heavy-Fermi-liquid formation in valence-fluctuating α-YbAlB<inf>4</inf>
Yosuke Matsumoto, Kentaro Kuga, Takahiro Tomita, Yoshitomo Karaki, Satoru Nakatsuji
Physical Review B - Condensed Matter and Materials Physics 84 ( 12 ) 125126-1 - 7 2011.9
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Quantum critical kondo quasiparticles probed by ESR in β-YbAlB <inf>4</inf>
L. M. Holanda, J. M. Vargas, W. Iwamoto, C. Rettori, S. Nakatsuji, K. Kuga, Z. Fisk, S. B. Oseroff, P. G. Pagliuso
Physical Review Letters 107 ( 2 ) 026402-1 - 4 2011.7
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Anisotropic electrical transport in the heavy fermion compound α-YbAlB<inf>4</inf>
Kentaro Kuga, Yosuke Matsumoto, Naoki Horie, Satoru Nakatsuji
Journal of the Physical Society of Japan 80 ( SUPPL. A ) SA089-1 - 2 2011.7
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Kondo lattice behavior in the valence fluctuating systems α- and β-YbAlB<inf>4</inf>
Yosuke Matsumoto, Kentaro Kuga, Naoki Horie, Satoru Nakatsuji
Journal of the Physical Society of Japan 80 ( SUPPL. A ) SA090-1 - 3 2011.7
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Thermoelectric coefficients of the quantum critical β-YbAlB <inf>4</inf>
Y. Machida, C. Ogura, K. Izawa, K. Kuga, S. Nakatsuji
Journal of the Physical Society of Japan 80 ( SUPPL. A ) SA088-1 - 3 2011.7
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NMR/NQR and Specific Heat Studies of Iron Pnictide Superconductor KFe<sub>2</sub>As<sub>2</sub>
H. Fukazawa, T. Saito, Y. Yamada, K. Kondo, M. Hirano, Y. Kohori, K. Kuga, A. Sakai, Y. Matsumoto, S. Nakatsuji, K. Kihou, A. Iyo, C. H. Lee, H. Eisaki
Journal of the Physical Society of Japan 80 ( Suppl.A ) SA118 - SA118 2011.7
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Low temperature magnetic properties of Pr(Cu,Ga)<inf>13</inf> with orbitally degenerate ground state
Yasuyuki Shimura, Toshiro Sakakibara, Kentaro Kuga, Jung Young Cho, Julia Y. Chan
Journal of the Physical Society of Japan 80 ( SUPPL. A ) SA072-1 - 3 2011.7
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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
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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
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Strong valence fluctuation in the quantum critical heavy fermion superconductor β-YbAlB4: A hard x-ray photoemission study
M. Okawa, M. Matsunami, K. Ishizaka, R. Eguchi, M. Taguchi, A. Chainani, Y. Takata, M. Yabashi, K. Tamasaku, Y. Nishino, T. Ishikawa, K. Kuga, N. Horie, S. Nakatsuji, S. Shin
Physical Review Letters 104 ( 24 ) 247201-1 - 4 2010.6
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Low-temperature magnetization of the quantum critical heavy fermion superconductor β-YbAlB<inf>4</inf>
Yosuke Matsumoto, Kentaro Kuga, Yoshitomo Karaki, Takahiro Tomita, Satoru Nakatsuji
Physica Status Solidi (B) Basic Research 247 ( 3 ) 720 - 722 2010.3
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Pronounced non-fermi-liquid behavior of the quantum critical heavy fermion superconductor β-YbAlB<inf>4</inf>
Satoru Nakatsuji, Kentaro Kuga, Takahiro Tomita, Yosuke Matsumoto
Physica Status Solidi (B) Basic Research 247 ( 3 ) 485 - 489 2010.3
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Crystal growth, structure, and physical properties of Ln(Cu,Al)<inf>12</inf>(Ln = y , Ce, Pr, Sm, and Yb) and Ln(Cu,Ga)<inf>12</inf> (Ln = Y, Gd-Er, and Yb)
Brenton L. Drake, C. Capan, Jung Young Cho, Y. Nambu, K. Kuga, Y. M. Xiong, A. B. Karki, S. Nakatsuji, P. W. Adams, D. P. Young, Julia Y. Chan
Journal of Physics Condensed Matter 22 ( 6 ) 2010.2
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Possible multiple gap superconductivity with line nodes in heavily hole-doped superconductor KFe <inf>2</inf>As <inf>2</inf> studied by <inf>75</inf>As nuclear quadrupole resonance and specific heat
Hideto Fukazawa, Yuji Yamada, Kenji Kondo, Taku Saito, Yoh Kohori, Kentarou Kuga, Yosuke Matsumoto, Satoru Nakatsuji, Hijiri Kito, Parasharam M. Shirage, Kunihiro Kihou, Nao Takeshita, Chul Ho Lee, Akira Iyo, Hiroshi Eisaki
Journal of the Physical Society of Japan 78 ( 8 ) 083712-1 - 4 2009.8
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Crystal growth, structure, and physical properties of Ln(Cu,Ga) <inf>3-x</inf>(Ln=La-Nd, Eu; x≈0.2)
Jung Young Cho, Evan L. Thomas, Yusuke Nambu, Cigdem Capan, Amar B. Karki, David P. Young, Kentarou Kuga, Satoru Nakatsuji, Julia Y. Chan
Chemistry of Materials 21 ( 14 ) 3072 - 3078 2009.7
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Role of f electrons in the fermi surface of the heavy fermion superconductor β-YbAlB4
E. C.T. O'Farrell, D. A. Tompsett, S. E. Sebastian, N. Harrison, C. Capan, L. Balicas, K. Kuga, A. Matsuo, K. Kindo, M. Tokunaga, S. Nakatsuji, G. Csányi, Z. Fisk, M. L. Sutherland
Physical Review Letters 102 ( 21 ) 216402-1 - 4 2009.5
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Crystal growth, transport, and magnetic properties of YbCoGa <inf>5</inf>
Edem K. Okudzeto, Kentarou Kuga, Satoru Nakatsuji, Julia Y. Chan
Crystal Growth and Design 9 ( 4 ) 1956 - 1959 2009.4
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Crystal structure and physical properties of polymorphs of LnAlB <inf>4</inf> (Ln = Yb, Lu)
Robin T. Macaluso, Satoru Nakatsuji, Kentaro Kuga, Evan Lyle Thomas, Yo Machida, Yoshiteru Maeno, Zachary Fisk, Julia Y. Chan
Chemistry of Materials 19 ( 8 ) 1918 - 1922 2007.4