Atomic displacements and lattice distortion in the magnetic-field-induced charge-ordered state of SmRu4P12

Physical Review B Volume 94 Issue 18 Page 184425-1-184425-10 published_at 2016
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Title ( eng )
Atomic displacements and lattice distortion in the magnetic-field-induced charge-ordered state of SmRu4P12
Creator
Michimura Shinji
Inami Toshiya
Fushiya Kengo
Matsuda Tatsuma D
Higashinaka Ryuji
Aoki Yuji
Sugawara Hitoshi
Source Title
Physical Review B
Volume 94
Issue 18
Start Page 184425-1
End Page 184425-10
Abstract
Structural properties of SmRu4P12 in the anomalous magnetic ordered phase between T* ~ 14 K and TN = 16.5 K in magnetic fields has been studied by x-ray diffraction. Atomic displacements of Ru and P, reflecting the field-induced charge order of the p electrons, have been deduced by analyzing the intensities of the forbidden Bragg peaks, assuming a cubic space groupPm¯3. Also, by utilizing a high-resolution x-ray diffraction experiment, we observed a splitting of fundamental Bragg peaks, clarifying that the unit cell in the magnetic ordered phase is rhombohedral elongated along the [1 1 1] axis. The response of the rhombohedral domains to the magnetic field, which reflects the direction of the magnetic moment, is studied in detail.
Descriptions
This work was supported by JSPS KAKENHI Grants No. 24340087 and No. 15K05175.
NDC
Physics [ 420 ]
Language
eng
Resource Type journal article
Publisher
American Physical Society
Date of Issued 2016
Rights
Copyright (c) 2016 American Physical Society
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
Publish Type Author’s Original
Access Rights open access
Source Identifier
[ISSN] 2469-9950
[NCID] AA11187113
[DOI] 10.1103/PhysRevB.94.184425
[DOI] http://dx.doi.org/10.1103/PhysRevB.94.184425