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ID 38218
file
creator
Michimura, Shinji
Inami, Toshiya
Hayashi, Yuya
Fushiya, Kengo
Matsuda, Tatsuma D.
Higashinaka, Ryuji
Aoki, Yuji
Sugawara, Hitoshi
NDC
Physics
abstract
The antiferromagnetic ordered phase in SmRu4P12 below the metal-insulator transition at T MI = 16.5 K with an unresolved transition at T∗ ~ 14 K has been studied by resonant and nonresonant x-ray diffraction in magnetic fields. In the intermediate phase, a nonresonant Thomson scattering with q = (1,0,0) is induced by applying a magnetic field, which is presumably caused by atomic displacements reflecting the charge order in the p band, as predicted theoretically [R. Shiina, J. Phys. Soc. Jpn. 82, 083713 (2013)]. Simultaneously, the antiferromagnetic moment of Sm is enhanced along the field direction, which is considered to reflect the staggered ordering of the Γ 7 −Γ 8 crystal-field states (scalar or hexadecapole order). The present results show that the orbital-dependent p-f hybridization in association with the nesting instability in the p band gives rise to the unconventional charge order similarly with PrRu4P12 and PrFe4P12.
description
This work was supported by Grants-in-Aid for Scientific Research (No. 21204456, No. 21102515, and No. 2430087) from JSPS and MEXT, and by a Basic Science Research Grant from the Sumitomo Foundation.
journal title
Physical Review B
volume
Volume 89
issue
Issue 16
start page
161116-1
end page
161116-5
date of issued
2014-04-25
publisher
American Physical Society
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
appliation/pdf
text version
publisher
rights
Copyright (c) 2014 American Physical Society
relation url
department
Graduate School of Advanced Sciences of Matter
Institute for Advanced Materials Research