Transition-element doping effects in La0.7Ca0.3MnO3

被引：294

作者：

Ghosh, K ^{[1
]}

Ogale, SB

Ramesh, R

Greene, RL

Venkatesan, T

Gapchup, KM

Bathe, R

Patil, SI

机构：

[1] Univ Maryland, NSF, MRSEC Oxides Surfaces & Probes, College Pk, MD 20742 USA

[2] Univ Maryland, Dept Phys, Ctr Superconduct Res, College Pk, MD 20742 USA

[3] Univ Poona, Dept Phys, Poona 411007, Maharashtra, India

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.59.533

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of transition element (TE) doping on the magnetotransport properties of La0.7Ca0.3MnO3 is studied for the entire transition element series (TE=Cr, Fe, Co, Ni, Cu, Zn) for a fixed (5% at Mn sites) dopant concentration. The systematics of different properties such as the metal-insulator transition temperature T-p, the Curie temperature T-c, rho(T-p), rho(5 K), and the maximum value of magnetoresistance (MR), with respect to lattice parameter and the ionic radii of dopants, are examined. The important findings include an interesting correlation between the maximum MR, the lattice parameter, and the ionic radii, and some distinct features exhibited by Fe, Cu, and Zn dopants. [S0163-1829(98)01146-1].

引用

页码：533 / 537

页数：5

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