magnetothermal
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Title:
High-pressure structural analysis of (Nd,Sm)1/2Sr1/2MnO3: Origin for pressure-induced charge ordering
Authors:
Kuriki, A.; Moritomo, Y.; Machida, A.; Nishibori, E.; Takata, M.; Sakata, M.; Ohishi, Y.; Shimomura, O.; Nakamura, A.
Affiliation:
AA(Department of Crystalline Materials Science, Nagoya University, Nagoya 464-8603, Japan) AB(Center for Integrated Research in Science and Engineering, Nagoya University, Nagoya 464-8601, Japan) AC(Department of Crystalline Materials Science, Nagoya University, Nagoya 464-8603, Japan) AD(Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan) AE(Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan) AF(Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan) AG(SPring-8/JASRI, 1-1-1 Koto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198, Japan) AH(SPring-8/JAERI, 1-1-1 Koto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198, Japan) AI(Center for Integrated Research in Science and Engineering, Nagoya University, Nagoya 464-8601, Japan)
Publication:
Physical Review B, vol. 65, Issue 11, id. 113105 (PhRvB Homepage)
Publication Date:
03/2002
Origin:
APS
Abstract Copyright:
(c) 2002: The American Physical Society
DOI:
10.1103/PhysRevB.65.113105
Bibliographic Code:
2002PhRvB..65k3105K
Abstract
Pressure effects on the structural parameters are investigated in a half-doped manganites (Nd0.125Sm0.875)1/2Sr1/2MnO3, by means of the synchrotron-radiation x-ray powder diffraction measurement. The compound shows a pressure-induced metal-insulator transition due to the subtle competition between the double-exchange interaction and the charge-ordering instability [Y. Tokura et al., Phys. Rev. Lett. 76, 3184 (1996)]. We have found that application of pressure induces the four-long and two-short deformation of the MnO6 octahedra. We present a possible scenario for the pressure-induced charge-ordering.
\u53c2\u8003\uff1ahttp://adsabs.harvard.edu/abs/2002PhRvB..65k3105K
magnetothermal effect
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2.磁致热效应
magnetothermal protection devices
1.磁热保护原件
luminous pushbutton
发光按钮
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