Improved properties of La2/3Ca1/3MnO3 thin films by addition of silver

被引：78

作者：

Shreekala, R

Rajeswari, M

Pai, SP

Lofland, SE

Smolyaninova, V

Ghosh, K

Ogale, SB

Bhagat, SM

Downes, MJ

Greene, RL

Ramesh, R

Venkatesan, T

机构：

[1] Univ Maryland, Ctr Supercond Res, College Pk, MD 20742 USA

[2] Univ Maryland, NSF, MRSEC, College Pk, MD 20742 USA

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 19期

关键词：

D O I：

10.1063/1.124037

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Thin films of Ag-added La2/3Ca1/3MnO3 exhibit enhancement of several desirable characteristics over the pristine counterparts. We find that the addition of Ag results in a pronounced increase in the insulator-metal transition temperature (T-p) and ferromagnetic transition temperature (T-c). There is also a remarkable improvement in the magnetic and electrical homogeneity of the samples as indicated by narrower ferromagnetic resonance linewidths and narrower resistive transitions, respectively. The observed improvement in properties is inferred to be largely associated with improved oxygen stoichiometry of the films although microstructural effects are not ruled out. (C) 1999 American Institute of Physics. [S0003-6951(99)04819-6].

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页码：2857 / 2859

页数：3

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