Phase separation and insulator-metal behavior of doped manganites

被引：35

作者：

Machida, A ^{[1
]}

Moritomo, Y

Nishibori, E

Takata, M

Sakata, M

Ohoyama, K

Mori, S

Yamamoto, N

Nakamura, A

机构：

[1] Nagoya Univ, Dept Crystalline Mat Sci, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, Ctr Integrated Res Sci & Engn, Nagoya, Aichi 4648601, Japan

[3] JST, PRESTO, Tokyo 102, Japan

[4] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan

[5] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan

[6] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.62.3883

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Structural and magnetic properties of the phase separated state in Nd-0.55(Sr0.17Ca0.83)(0.45)MnO3 have been investigated by means of synchrotron radiation x-ray as well as neutron powder diffraction experiments. We have observed a phase transformation into the phase separated (two-phase) state below T(CO)similar to 200 K, and have observed that the lattice constants change discontinuously at the transformation. On the basis of the structural and magnetic data, origin of the insulator-metal behavior is discussed.

引用

页码：3883 / 3887

页数：5

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