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ID 38217
本文ファイル
著者
Michimura, Shinji
Inami, Toshiya
Otsubo, Toru
Iga, Fumitoshi
NDC
物理学
抄録(英)
The multipole ordered phase in Ce 0.7 La 0.3 B 6, emerging below 1.5 K and named phase IV, has been studied by resonant x-ray diffraction in magnetic fields. By utilizing diamond x-ray phase plates to rotate the incident linear polarization and a conventional crystal analyzer system, full linear polarization analysis has been performed to identify the order parameters. The analysis shows that the Γ 5g (O yz, O zx, O xy) quadrupoles are more induced by the field than the Γ 3g (O 20 and O 22) quadrupoles on the Γ 5u (T β x+y+z) antiferro-octupole order in phase IV. The problem is that this result is contradictory to a mean-field calculation, which inevitably gives the Γ 3g quadrupole as the main induced moment. This result indicates that the Γ 5g quadrupole order is close in energy. We consider that a large fluctuation of the Γ 5g quadrupole is hidden behind the primary ordering of the Γ 5u octupole and that the multipolar fluctuation significantly affects the ordering phenomenon.
内容記述
This work was supported by Grants-in-Aid for Scientific Research (Nos. 21204456 and 24340087) from the Japan Society for the Promotion of Science (JSPS), by a Grant-in-Aid for Scientific Research on Innovative Areas “Heavy Electrons” (No. 21102515) from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), and by a Basic Science Research Grant from the Sumitomo Foundation.
掲載誌名
Physical Review B
89巻
1号
開始ページ
014422-1
終了ページ
014422-13
出版年月日
2014-01-24
出版者
American Physical Society
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
appliation/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2014 American Physical Society
関連情報URL
部局名
先端物質科学研究科
先進機能物質研究センター