Electronic phase diagram and phase separation in Cr-doped manganites

被引：122

作者：

Moritomo, Y ^{[1
]}

Machida, A

Mori, S

Yamamoto, N

Nakamura, A

机构：

[1] Nagoya Univ, CIRSE, Nagoya, Aichi 4648601, Japan

[2] Nagoya Univ, Dept Crystalline Mat Sci, Nagoya, Aichi 4648601, Japan

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

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.60.9220

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic properties are systematically investigated for Cr-doped manganites R1/2Ca1/2(Mn,Cr)O-3 (R = La, Nd, Sm, and Eu) with variation of the averaged ionic radius r(R) of the rare-earth ion, or the one-electron bandwidth W. Cr-doping procedure on the perovskite B site significantly unstabilizes the charge-ordered (CO) state, and induces the ferromagnetic metallic (FM) state in the large-r(R)(greater than or equal to 1.29 Angstrom) region. We have found coexistence of the CO domains in the FM phase, or the electronic phase separation, near the FM-CO phase boundary. [S0163-1829(99)08737-8].

引用

页码：9220 / 9223

页数：4

共 20 条

[1] First order nucleation of charge ordered domains in La0.5Ca0.5MnO3 detected by 139La and 55Mn NMR [J].