論文 - 久我 健太郎
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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年11月
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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
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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
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Simultaneous enhancements of thermopower and electrical conductivity in quasi-one-dimensional <i>α</i>-YbAlB<sub>4</sub> single crystal
Kuga, K; Matsunami, M; Singh, S; Nakatsuji, S; Takeuchi, T
APPLIED PHYSICS LETTERS 119 ( 22 ) 2021年11月
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Effect of Anisotropic Hybridization in YbAlB<sub>4</sub> 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
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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
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Strange metal without magnetic criticality
Tomita, T; Kuga, K; Uwatoko, Y; Coleman, P; Nakatsuji, S
SCIENCE 349 ( 6247 ) 506 - 509 2015年07月
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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年12月
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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
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Quantum Criticality Without Tuning in the Mixed Valence Compound β-YbAlB<sub>4</sub>
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
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Superconducting properties of the non-fermi-liquid system β-YbAlB<sub>4</sub>
Kuga, K; Karaki, Y; Matsumoto, Y; Machida, Y; Nakatsuji, S
PHYSICAL REVIEW LETTERS 101 ( 13 ) 137004-1 - 4 2008年09月
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Superconductivity and quantum criticality in the heavy-fermion system β-YbAlB<sub>4</sub>
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
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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年02月
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Orbital hybridisation effects in B2 phase Cr doped Co<sub>2</sub>MnAl
Pathak, S; Singh, S; Khalid, S; Kuga, K; Takeuchi, T; Bindu, R
JOURNAL OF PHYSICS-CONDENSED MATTER 35 ( 39 ) 2023年10月
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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
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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, AKR; Matsunami, M; Takeuchi, T
JAPANESE JOURNAL OF APPLIED PHYSICS 62 ( 5 ) 2023年05月
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Valence fluctuation in Yb<sub>3</sub>Si<sub>5</sub> 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
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Magneto-thermal conductivity effect and enhanced thermoelectric figure of merit in Ag<sub>2</sub>Te
Hirata, K; Kuga, K; Matsunami, M; Zhu, MY; Heremans, JP; Takeuchi, T
AIP ADVANCES 13 ( 1 ) 2023年01月
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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
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Synthesis and structural link to the electronic and magneto-transport properties of spin-orbit Mott insulator Sr<sub>2</sub>IrO<sub>4</sub>
Sharma, P; Singh, S; Kuga, K; Takeuchi, T; Bindu, R
JOURNAL OF PHYSICS-CONDENSED MATTER 34 ( 43 ) 2022年10月