| Project/Area Number |
15K05174
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Hiroshima University |
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Principal Investigator |
Sato Hitoshi 広島大学, 放射光科学研究センター, 准教授 (90243550)
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| Co-Investigator(Kenkyū-buntansha) |
有田 将司 広島大学, 技術センター, 技術専門職員 (20379910)
大原 繁男 名古屋工業大学, 工学(系)研究科(研究院), 教授 (60262953)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | cf混成 / 近藤効果 / 価数揺動 / 基底状態 / イッテルビウム / 光電子分光 |
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| Outline of Final Research Achievements |
A ground state of Yb-based compounds is controlled by the hybridization between the Yb 4f and conduction-band electronic states (c-f hybridization). The compounds with the weak c-f hybridization exhibit the magnetic order, while those with the strong c-f hybridization exhibit the Fermi liquid state with the non-magnetic order. In this study, we investigated the electronic structure of the selected Yb systems, which have the same crystal structure and similar conduction-band electronic states with the largely different Kondo temperature reflecting the c-f hybridization strength, by means of photoemission spectroscopy, and constructed the electronic model explaining the ground state of the Yb compounds.
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