Magnetic-field-induced charge order in the filled skutterudite SmRu4P12 : Evidence from resonant and nonresonant x-ray diffraction
Use this link to cite this item : https://ir.lib.hiroshima-u.ac.jp/00038218
ID | 38218 |
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creator |
Michimura, Shinji
Inami, Toshiya
Hayashi, Yuya
Fushiya, Kengo
Matsuda, Tatsuma D.
Higashinaka, Ryuji
Aoki, Yuji
Sugawara, Hitoshi
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NDC |
Physics
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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.
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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.
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journal title |
Physical Review B
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volume | Volume 89
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issue | Issue 16
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start page | 161116-1
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end page | 161116-5
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date of issued | 2014-04-25
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publisher | American Physical Society
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publisher doi | |
language |
eng
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nii type |
Journal Article
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HU type |
Journal Articles
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DCMI type | text
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format | appliation/pdf
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text version | publisher
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rights | Copyright (c) 2014 American Physical Society
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relation url | |
department |
Graduate School of Advanced Sciences of Matter
Institute for Advanced Materials Research
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