Pressure-induced tetragonal-orthorhombic phase transitions in CeRuPO

S. Hirai; Y. Kamihara; A. Wakatsuki; M. Matoba; W. L. Mao

doi:10.1063/1.4791690

Pressure-induced tetragonal-orthorhombic phase transitions in CeRuPO

S. Hirai, Y. Kamihara, A. Wakatsuki, M. Matoba, W. L. Mao

物理情報工学科

研究成果: Article › 査読

2 被引用数 (Scopus)

抄録

CeRuPO, a ferromagnetic Kondo lattice, undergoes two novel pressure-induced structural phase transitions. CeRuPO undergoes an isostructural transition to a collapsed tetragonal structure near 7.5 GPa. Since pressure suppresses the initial ferromagnetic ordering of Ce³⁺, our observation suggests a quantum critical point for CeRuPO near this pressure. The collapsed tetragonal phase transforms into an orthorhombic Cmma structure. This phase is isostructural with the low temperature phase of LaFeAsO, which is superconducting under high pressure. Since CeRuPO exhibits a similar relationship between the two phases of LaFeAsO, the collapsed tetragonal and orthorhombic phases of CeRuPO may adopt a novel magnetic ground state.

本文言語	English
論文番号	051917
ジャーナル	Applied Physics Letters
巻	102
号	5
DOI	https://doi.org/10.1063/1.4791690
出版ステータス	Published - 2013 2 4

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4791690

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引用スタイル

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AU - Kamihara, Y.

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AU - Matoba, M.

AU - Mao, W. L.

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