2012 Fiscal Year Final Research Report
High-precision bulk fermiology of f electron systems using advanced photoemission spectroscopy
| Project Area | Emergence of Heavy Electrons and Their Ordering |
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| Project/Area Number |
20102003
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Okayama University |
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Principal Investigator |
YOKOYA Takayoshi 岡山大学, 大学院・自然科学研究科, 教授 (90311646)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAGAMI Hiroshi 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, グループリーダー (20239867)
SEKIYAMA Akira 大阪大学, 基礎工学研究科, 教授 (40294160)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIN Shik 東京大学, 物性研究所, 教授 (00162785)
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| Project Period (FY) |
2008 – 2012
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| Keywords | 電子系化合物 / 重い電子 / 電子状態 / バルク高精度光電子分光 |
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| Research Abstract |
Compounds with lanthanoid and actinoid elements exhibit interesting physical properties including heavy fermion, exotic superconductivity, quantum criticality and so on. These properties have been known to originate from subtle interplay between electron correlation of f electrons and hybridization of f electron and conduction electrons, and the understanding of the mechanism is one of the important issues in condensed matter physics. In this project, we extensively utilized advanced photoemission spectroscopy, such as soft x-ray and laser photoemission spectroscopy to f electron systems, and revealed f-electron Fermi surfaces and band dispersions as well as fine structures near the Fermi level, which lead to deeper understanding of the physical properties.
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