Unique magnetic structure of YbCoSi

YbCoSiの特異な磁気構造

Mufti, N.*; 金子耕士 ; Hoser, A.*; Gutmann, M.*; Geibel, C.*; Krellner, C.*; Stockert, O.*

Mufti, N.*; Kaneko, Koji; Hoser, A.*; Gutmann, M.*; Geibel, C.*; Krellner, C.*; Stockert, O.*

We report on the results of powder and single crystal neutron diffraction to investigate the magnetic order in YbCoSi below the Nel temperature $T_{rm N} = 1.7$ ,K in detail. Two different magnetically ordered phases can clearly be distinguished. At lowest temperatures a commensurate magnetic structure with a propagation vector ${bf k}_1 = (0.25 0.25 1)$ is found, while the intermediate phase (,K) is characterized by an incommensurate magnetic structure with ${bf k}_2 = (0.25 0.086 1)$ . The magnetic structure in YbCoSi is in marked contrast to all other known CoSi compounds ( = rare earth element) likely due to some itineracy of the Yb 4f states being responsible for the magnetism.

使用言語	:	English
掲載資料名	:	Physical Review B
巻	:	94
号	:	4
ページ数	:	p.045116_1 - 045116_8
発行年月	:	2016/07
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PDF	:	AA2015-0370.pdf:1.33MB

論文URL	:	https://doi.org/10.1103/PhysRevB.94.045116
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使用施設	:	JRR-3M(研究炉3)
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InCites™	:	パーセンタイル：10.64 分野：Materials Science, Multidisciplinary
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登録番号 : AA20150370
抄録集掲載番号 : 44001317
論文投稿番号 : 17989

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