Studies of multipole ordering and the dimer ground state in the rare-earth compounds
Project/Area Number |
21540364
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Hiroshima University |
Principal Investigator |
SERA Masafumi 広島大学, 大学院・先端物質科学研究科, 教授 (40196978)
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Co-Investigator(Kenkyū-buntansha) |
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) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
Keywords | 多極子秩序 / 隠れた秩序 / 近藤効果 / 結晶場 / 一重項基底状態 / 近藤半導体 / 磁気秩序 / スピンギャップ / c-f混成 / フェルミ面 / 磁気異方性 / 多重極秩序 |
Research Abstract |
As for CeB_6 system showing a multipole order, we succeeded to observe the order parameters of O_<xy> and Txyz directly by the resonant X-ray scattering. By the study of the pressure effect on phase IV of Ce_<0. 8> La_<0. 2> B_6, we found that the results were difficult to understand by the octupole order proposed previously. As for CeT_2Al_<10>, we found that the origin of the order is magnetic, the spin singlet is closely associated with the long range order in this system, the electronic state has a two-dimensional nature and the anisotropic c-f hybridization plays an important role in the unusual long range order.
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Report
(4 results)
Research Products
(64 results)
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[Journal Article] Electronic structure and localized lantanide character of LnT_2Al_<10>(T=Ru, Os)2011
Author(s)
H. Tanida, D. Tanaka, M. Sera, S. Tanimoto, T. Nishioka, M. Matsumura, M. Ogawa, C. Moriyoshi, Y. Kuroiwa, J. E. Kim, N. Tsuji, and M. Takata
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Peer Reviewed
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[Journal Article] Motion of guest ions as precursor to first-order phase transition in the cage system GdB_62011
Author(s)
K. Iwasa, R. Igarashi, K. Saito, C. Laulhe, T. Orihara, S. Kunii, K. Kuwahara, H. Nakao, Y. Murakami, F. Iga, M. Sera, S. Tsutsui, H. Uchiyama, and A. Q. Baron
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[Journal Article] Electronic structure and localized lantanide character of LnT_2Al_<10>(T=Ru, Os)2011
Author(s)
H.Tanida, D.Tanaka, M.Sera, S.Tanimoto, T.Nishioka, M.Matsummura, M.Ogawa, C.Moriyoshi, Y.Kuroiwa, J.E.Kim, N.Tsuji, M.Takata
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Peer Reviewed
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[Journal Article] Motion of guest ions as precursor to first-order phase transition in the cage system GdB_62011
Author(s)
K.Iwasa, R.Igarashi, K.Saito, C.Laulhe, T.Orihara, S.Kunii, K.Kuwahara, H.Nakao, Y.Murakami, F.Iga, M.Sera, S.Tsutsui, H.Uchiyama, A.Q.Baron
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[Journal Article] Hall coefficient for CeRu_2Al_<10> under pressure2011
Author(s)
K.Kawamura, Y.Ogane, T.Nishioka, H.Kato, M.Matsumura, D.Tanaka, H.Tanida, M.Sera, A.Kondo, K.Matsubayashi, Y.Uwatoko
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Journal Title
J.Phys.Soc.Jpn.
Volume: 80
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Peer Reviewed
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[Presentation] LnT_2Al_<10>の結晶構造と電子密度分布2012
Author(s)
世良正文, 田中大貴, 谷田博司, 小川真由子, 森吉千佳子, 黒岩芳弘, 西岡孝, 松村政博, 金延恩, 辻成希, 高田昌樹
Organizer
日本物理学会
Place of Presentation
関西学院大学
Year and Date
2012-03-27
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[Presentation] LnT_2Al_<10>における軌道-格子相互作用について2012
Author(s)
世良正文, 田中大貴, 谷田博司, 小川真由子, 森吉千佳子, 黒岩芳弘, 西岡孝, 松村政博, 金延恩, 辻成希, 高田昌
Organizer
日本物理学会
Place of Presentation
関西学院大学
Year and Date
2012-03-27
Related Report
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[Presentation] LnT_2Al_<10>の電子密度分布2011
Author(s)
世良正文, 田中大貴, 谷田博司, 小川真由子, 森吉千佳子, 黒岩芳弘, 西岡孝, 松村政博, 金延恩, 辻成希, 高田昌
Organizer
日本物理学会
Place of Presentation
富山大学
Year and Date
2011-09-21
Related Report
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[Presentation] LnT_2Al_<10>における軌道-格子相互作用について2011
Author(s)
世良正文, 田中大貴, 谷田博司, 小川真由子, 森吉千佳子, 黒岩芳弘, 西岡孝, 松村政博, 金延恩, 辻成希, 高田昌
Organizer
日本物理学会
Place of Presentation
富山大学
Year and Date
2011-09-21
Related Report
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