Investigation of the ground state of the novel Kondo semiconductor CeRu2Al10 showing the magnetic order
| Project/Area Number |
24540376
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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 |
SERA MASAFUMI 広島大学, 先端物質科学研究科, 教授 (40196978)
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| Co-Investigator(Renkei-kenkyūsha) |
TANIDA Hiroshi 広島大学, 大学院先端物質科学研究科, 助教 (00452615)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 近藤半導体 / 反強磁性秩序 / CeRu2Al10 / スピンギャップ / 電荷ギャップ / ジグザグ鎖 / 2次元性 / CeT2Al10 / ２次元性 / 磁気秩序 |
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| Outline of Final Research Achievements |
CeRu2Al10 is the first Kondo semiconductor showing the antiferro-magnetic order and since the discovery at 2009, the extensive studies have been performed. The antiferro-magnetic transition temperature of this compound is quite high and the electronic state below Neel temperature is quite strange. In the present study, we performed the X-ray diffraction in SPring-8 to clarify the nature of the crystal structure and electronic state. We also investigated the pressure effect and doping effect and neutron diffraction experiments etc. Based on the obtained results, we could conclude that the unusual properties below TN originate from the anisotropic c-f hybridization.
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Report
(4 results)
Research Products
(49 results)
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[Journal Article] Influence of Electron Doping on Magnetic Order in CeRu2Al102014
Author(s)
R. Kobayashi, K. Kaneko, K. Saito, J. Mignot, G. Andre, J. Robert, S. Wakimoto, M. Matsuda, S. Chi, Y. Haga, and T. D. Matsuda
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Journal Title
J. Phys. Soc. Jpn.
Volume: 83
Issue: 10
Pages: 104707-104707
DOI
NAID
ISSN
0031-9015, 1347-4073
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Ru-NQR Study for Novel Phase Transition in CeRu2Al102014
Author(s)
M. Matsumura, N. Tomita, J. Matsuoka, Y. Kishimoto, H. Kato, K. Kitagawa, T. Nishioka, H. Tanida, and M. Sera
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Journal Title
J. Phys. Soc. Jpn.
Volume: 83
Issue: 10
Pages: 103705-103705
DOI
NAID
ISSN
0031-9015, 1347-4073
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Nuclear Spin–Lattice Relaxation Study for 4fElectron State in CeT2Al10(T = Ru, Os, and Fe): Comparison with RKKY System NdRu2Al102013
Author(s)
M. Matsumura, N. Tomita, S. Yanimoto, Y. Kawamura, R. Kobayashi, H. Kato, T. Nishioka,
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Journal Title
J. Phys. Soc. Jpn.
Volume: 82
Issue: 2
Pages: 023702-023702
DOI
ISSN
0031-9015, 1347-4073
Related Report
Peer Reviewed
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