Physical properties of heavy Fermion superconductors investigated by fabrication of artificial superlattices
Project/Area Number |
18340100
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Kyoto University |
Principal Investigator |
SHIBAUCHI Takasada Kyoto University, 大学院・理学研究科, 准教授 (00251356)
|
Co-Investigator(Kenkyū-buntansha) |
TERASHIMA Takahito 京都大学, 低温物質科学研究センター, 教授 (40252506)
|
Project Period (FY) |
2006 – 2008
|
Project Status |
Completed (Fiscal Year 2008)
|
Budget Amount *help |
¥17,150,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2007: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2006: ¥7,400,000 (Direct Cost: ¥7,400,000)
|
Keywords | f電子系 / 次元性制御 / 電子相関 / 量子臨界点 / 反強磁性 / 非フェルミ液体 / 異方的超伝導 / 超格子 / 有効質量 / 超伝導対称性 / 積層構造 / 量子臨界現象 / エピタキシャル成長 / π接合 / 擬ギャップ |
Research Abstract |
本研究では、希土類元素Ceを含む重い電子系化合物の薄膜化技術を確立し、CeCoIn5超伝導体のc軸配向薄膜、CeIn3反強磁性体のエピタキシャル薄膜、およびCeIn3とLaIn3のエピタキシャル人工超格子の作製に成功した.Ce系重い電子系のエピタキシャル薄膜作製は世界初の成果である.さらに人工超格子の作製により、重い電子系の次元性を制御することが可能になり、低次元化による反強磁性の抑制とそれに伴う非フェルミ液体的物性の発現の観測に成功した.今後2次元の重い電子系における新しい物理学の展望が期待できる.
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Report
(4 results)
Research Products
(51 results)
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[Journal Article] Microwave Surface-Impedance Measurements of the Magnetic Penetration Depth in Single Crystal Ba_<1-x>K_xFe_2As_2 Superconductors : Evidence for a Disorder-Dependent Superfluid Density2009
Author(s)
K. Hashimoto, T. Shibauchi, S. Kasahara, K. Ikada, S. Tonegawa, T. Kato, R. Okazaki, C. J. van der Beek, M. Konczykowski, H. Takeya, K. Hirata, T. Terashima and Y. Matsuda
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Journal Title
Related Report
Peer Reviewed
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[Journal Article] Lower Critical Fields of Superconducting PrFeAsO_<1-y> Single Crystals2009
Author(s)
R. Okazaki, M. Konczykowski, C. J. van der Beek, T. Kato, K. Hashimoto, M. Shimozawa, H. Shishido, M. Yamashita, M. Ishikado, H. Kito, A. Iyo, H. Eisaki, S. Shamoto, T. Shibauchi, and Y. Matsuda
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Journal Title
Phys. Rev. B 79
Pages: 64520-64520
Related Report
Peer Reviewed
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[Journal Article] Microwave Penetration Depth and Quasiparticle Conductivity of PrFeAsO_<1-y> Single Crystals : Evidence for a Full-Gap Superconductor2009
Author(s)
K. Hashimoto, T. Shibauchi, T. Kato, K. Ikada, R. Okazaki, H. Shishido, M. Ishikado, H. Kito, A. Iyo, H. Eisaki, S. Shamoto and Y. Matsuda
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Journal Title
Phys. Rev. Lett 102
Pages: 17002-17002
Related Report
Peer Reviewed
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[Journal Article] Possible Phase Transition Deep Inside the Hidden Order Phase of Ultraclean URu2Si22009
Author(s)
H. Shishido, K. Hashimoto, T. Shibauchi, T. Sasaki, H. Oizumi, N. Kobayashi, T. Takamasu, K. Takenaka, Y. Imanaka, T. D. Matsuda, Y. Hasa, Y. Onuki, Y. Matsuda
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Journal Title
Physical Review Letters 102
Pages: 156403-156403
Related Report
Peer Reviewed
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[Journal Article] Non-Fermi Liquid Behavior in the Magnetotransport of CeMIn5 (M: Co and Rh) : Striking Similarity between Quasi Two-Dimensional Heavy Fermion and High-Tc Cuprates2007
Author(s)
Y. Nakajima, H. Shishido, H. Nakai, T. Shibauchi, K. Behnia, K. Izawa, M. Hedo, Y. Uwatoko, T. Matsumoto, R. Settai, Y. Onuki, H. Kontani and Y. Matsuda
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Journal Title
J. Phys. Soc. Jpn 76
Pages: 24703-24703
Related Report
Peer Reviewed
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[Presentation] CeIrIn5の超伝導対称性2008
Author(s)
笠原裕一, 岩澤卓矢, 清水悠晴, 宍戸寛明, 芝内孝禎, 松田祐司, 摂待力生, 大貫惇睦
Organizer
日本物理学会第63回年次大会
Place of Presentation
近畿大
Year and Date
2008-03-24
Related Report
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[Presentation] Non-Fermi Liquid Behavior in the Magnetotransport of Quasi Two-Dimensional Heavy Fermion Compounds CeMIn_52007
Author(s)
Y. Nakajima, T. Shibauchi, H. Shishido H. Nakai, K. Behnia, K. Izawa, M. Hedo, Y. Uwatoko, T. Matsumoto, R. Settai, Y. Onuki, H. Kontani, and Y. Matsuda
Organizer
The 8th International Conference on Spectroscopies in Novel Superconductors (SNS2007)
Place of Presentation
仙台
Year and Date
2007-08-22
Related Report
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[Presentation] 重い電子系化合物CeMIn_5(M=Co, Rh)の高圧下磁気抵抗2006
Author(s)
仲島康行, 宍戸寛明, 中井秀和, 芝内孝禎, 松田祐司, 井澤公一, 辺土正人, 上床美也, 松本武彦, 摂待力生, 大貫惇睦, 紺谷浩
Organizer
日本物理学会2006年秋季大会
Place of Presentation
千葉大
Year and Date
2006-09-24
Related Report
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