Specific-Heat Evidence for Octupolar Ordering in SmRu_4P_<12>(Condensed matter : electronic structure and electrical, magnetic, and optical properties)
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概要
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We measured specific heat in the anomalous ordered phase (T<16.5K) of filled skutterudite SmRu_4P_<12>. From the hyperfine-enhanced Sm nuclear contribution, the ordered Sm dipole moment has been accurately determined to be 0.29±0.01μ_B, which is strongly reduced for usual dipolar ordering. We demonstrate that this finding along with other physical quantities provide strong evidence that the primary order parameter is Γ_<4u>-type octupole. The ordered state provides the first example of an octupolar ordering accompanied by nonzero parasitic dipole moments.
- 社団法人日本物理学会の論文
- 2007-11-15
著者
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SATO Hideyuki
Department of Physics, Tokyo Metropolitan University
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AOKI Yuji
Department of Physics, Tokyo Metropolitan University
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斯波 弘行
Department Of Physics Tokyo Metropolitan University
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Sanada Shotaro
Department Of Physics Tokyo Metropolitan University
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Saha S
Tokyo Metropolitan Univ. Tokyo
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KIKUCHI Daisuke
Department of Physics, Tokyo Metropolitan University
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Sato H
Graduate School Of Science Osaka University
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Aoki Yuji
Department Of Chemistry Faculty Of Science Gakushuin University
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SUGAWARA Hitoshi
The University of Tokushima
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斯波 弘行
東京工大
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Shiba Haruya
Department Of Electrical And Electronic Engineering Faculty Of Engineering The University Of Tokushi
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Shiba Hiroyuki
Department Of Physics Tokyo Institute Of Technologt
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Kikuchi Daisuke
Department Of Physics Tokyo Metropolitan University
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Kikuchi Daisuke
Department Of Applied Chemistry Muroran Institute Of Technology
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Shiozawa Hidetsugu
Department Of Physics Tokyo Metropolitan University
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Sakurai Hiroya
Superconducting Materials Center National Institute For Materials Science (smc/nims)
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Sato Hideyuki
Graduate School Of Science Tokyo Metropolitan University
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Sato Hideyuki
Department Of Cardiology Osaka University Graduate School Of Medicine
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Sato Hideyuki
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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SANADA Shotaro
Department of Physics, Tokyo Metropolitan University
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