Incommensurate-commensurate magnetic phase transition in SmRu2Al10

Physical Review B Volume 92 Issue 17 Page 174427-1-174427-10 published_at 2015
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Title ( eng )
Incommensurate-commensurate magnetic phase transition in SmRu2Al10
Creator
Takai Shun
Source Title
Physical Review B
Volume 92
Issue 17
Start Page 174427-1
End Page 174427-10
Abstract
Magnetic properties of single crystalline SmRu2Al10 have been investigated by electrical resistivity, magnetic susceptibility, and specific heat.We have confirmed the successive magnetic phase transitions at TN = 12.3 K and TM = 5.6 K. Resonant x-ray diffraction has also been performed to study the magnetic structures. Below TN, the Sm3+ moments order in an incommensurate structure with q1 = (0,0.759,0). The magnetic moments are oriented along the orthorhombic b axis, which coincides with the magnetization easy axis in the paramagnetic phase. A very weak third harmonic peak is also observed at q3 = (0,0.278,0). The transition at TM is a lock-in transition to the commensurate structure described by q1 = (0,0.75,0). A well-developed third harmonic peak is observed at q3 = (0,0.25,0). From the discussion of themagnetic structure,we propose that the long-range RKKY interaction plays an important role, in addition to the strong nearest-neighbor antiferromagnetic interaction.
Descriptions
This work was supported by Grants-in-Aid for Scientific Research (Grants No. 24540376, No. 24340087, No. 15K05173, and No. 15K05175) from the Japan Society for the Promotion of Science (JSPS).
NDC
Physics [ 420 ]
Language
eng
Resource Type journal article
Publisher
American Physical Society
Date of Issued 2015
Rights
Copyright (c) 2015 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.92.174427
[DOI] http://dx.doi.org/10.1103/PhysRevB.92.174427