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Large ferroquadrupole moment induced in the octupole-ordered Ce$$_{0.7}$$La$$_{0.3}$$B$$_6$$ revealed by high-resolution X-ray diffraction

Inami, Toshiya; Michimura, Shinji*; Hayashi, Yuya*; Matsumura, Takeshi*; Sera, Masafumi*; Iga, Fumitoshi*

We carried out a high-resolution X-ray diffraction experiment on Ce$$_{0.7}$$La$$_{0.3}$$B$$_6$$. This compound exhibits antiferro-octupole order (AFO) below $$T_O$$ = 1.4 K, and it is theoretically suggested that ferroquadrupole moments and a resultant rhombohedral deformation are induced in the AFO phase. We observe the splitting of Bragg reflections below $$T_O$$ and find that the unit cell is rhombohedral with the elongated [111] axis. We also precisely evaluate the magnitude of the induced quadrupole moments from the obtained shear strain and find that the quadrupole moments are not reduced in the AFO phase.

Language

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English

Journal

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Physical Review B

Volume

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90

Number

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4

Pages

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p.041108_1 - 041108_5

Publication Year/Month

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2014/07

Meeting title

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Held date

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Location (city)

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Location (country)

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Patent information

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PDF

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Paper URL

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https://doi.org/10.1103/PhysRevB.90.041108

DOI for research data

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Link to research data related to this paper/report.

Keywords

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high-resolution x-ray diffraction; antiferro-octupole order; ferroquadrupole moment; (CeLa)B6

Research Facility

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SPring-8(大型放射光施設)

Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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埼玉大学; 広島大学

Accesses

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- Accesses

InCites™

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Percentile:38.52

Category:Materials Science, Multidisciplinary

Altmetrics

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