Magnetic field induced phase transition in distorted perovskite Eu 0.6Sr0.4MnO3

Shin Nakamura; Susumu Shimomura; Naoshi Ikeda; Masaichiro Mizumaki; Hiroyuki Ohsumi; Shigeki Nimori; Takao Takeuchi; Kikuo Itoh

doi:10.1016/j.jmmm.2003.11.139

Magnetic field induced phase transition in distorted perovskite Eu _0.6Sr_0.4MnO₃

Shin Nakamura, Susumu Shimomura, Naoshi Ikeda, Masaichiro Mizumaki, Hiroyuki Ohsumi, Shigeki Nimori, Takao Takeuchi, Kikuo Itoh

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Structural feature of Eu_0.6Sr_0.4MnO₃ through the magnetic field induced insulator-to-metal transition has been investigated by using synchrotron X-ray diffraction in the magnetic field. While keeping the same Pnma symmetry, the lattice constant b jumps at the transition field, which is responsible for magnetoelastic effect. We suggest that the structural change through the transition is a rotation of MnO ₆ octahedron in a manner that the Mn-O-Mn angle increases toward 180°.

Original language	English
Pages (from-to)	424-425
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	I
DOIs	https://doi.org/10.1016/j.jmmm.2003.11.139
Publication status	Published - May 2004
Externally published	Yes

Keywords

EuSrMnO
Magnetic field induced effect
Metal-insulator transition
Phase transition
X-ray diffraction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2003.11.139

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Magnetic field induced phase transition in distorted perovskite Eu _0.6Sr_0.4MnO₃. / Nakamura, Shin; Shimomura, Susumu; Ikeda, Naoshi; Mizumaki, Masaichiro; Ohsumi, Hiroyuki; Nimori, Shigeki; Takeuchi, Takao; Itoh, Kikuo.

In: Journal of Magnetism and Magnetic Materials, Vol. 272-276, No. I, 05.2004, p. 424-425.

Research output: Contribution to journal › Article › peer-review

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abstract = "Structural feature of Eu0.6Sr0.4MnO3 through the magnetic field induced insulator-to-metal transition has been investigated by using synchrotron X-ray diffraction in the magnetic field. While keeping the same Pnma symmetry, the lattice constant b jumps at the transition field, which is responsible for magnetoelastic effect. We suggest that the structural change through the transition is a rotation of MnO 6 octahedron in a manner that the Mn-O-Mn angle increases toward 180°.",

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AU - Nakamura, Shin

AU - Shimomura, Susumu

AU - Ikeda, Naoshi

AU - Mizumaki, Masaichiro

AU - Ohsumi, Hiroyuki

AU - Nimori, Shigeki

AU - Takeuchi, Takao

AU - Itoh, Kikuo

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AB - Structural feature of Eu0.6Sr0.4MnO3 through the magnetic field induced insulator-to-metal transition has been investigated by using synchrotron X-ray diffraction in the magnetic field. While keeping the same Pnma symmetry, the lattice constant b jumps at the transition field, which is responsible for magnetoelastic effect. We suggest that the structural change through the transition is a rotation of MnO 6 octahedron in a manner that the Mn-O-Mn angle increases toward 180°.

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KW - Metal-insulator transition

KW - Phase transition

KW - X-ray diffraction

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