Structural response to O*-O′ and magnetic transitions in orthorhombic perovskites

被引：23

作者：

Van Aken, BB

Meetsma, A

Tomioka, Y

Tokura, Y

Palstra, TTM ^{[1
]}

机构：

[1] Univ Groningen, Solid State Chem Lab, Ctr Mat Sci, Nijenborgh 4, NL-9747 AG Groningen, Netherlands

[2] AIST, CERC, Tsukuba, Ibaraki 3058562, Japan

[3] AIST, JRCAT, Tsukuba, Ibaraki 3050046, Japan

[4] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.66.224414

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a temperature-dependent single-crystal x-ray-diffraction study of twinned orthorhombic perovskites La1-xCaxMnO3, for x=0.16 and x=0.25. These data show the evolution of the crystal structure from the ferromagnetic insulating state to the ferromagnetic metallic state. The data are modeled in space group Pnma with twin relations based on a distribution of the b axis over three perpendicular cubic axes. The twin model allows full structure determination in the presence of up to six twin fractions using the single-crystal x-ray-diffraction data.

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页码：1 / 11

页数：11

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