Ferromagnetism at room temperature in La0.8Ca0.2MnO3 thin films

被引：45

作者：

Shreekala, R ^{[1
]}

Rajeswari, M

Srivastava, RC

Ghosh, K

Goyal, A

Srinivasu, VV

Lofland, SE

Bhagat, SM

Downes, M

Sharma, RP

Ogale, SB

Greene, RL

Ramesh, R

Venkatesan, T

Rao, RA

Eom, CB

机构：

[1] Univ Maryland, Dept Phys, NSF, Mat Res Sci & Engn Ctr, College Pk, MD 20742 USA

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

[3] Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA

[4] Univ Pune, Dept Phys, Pune 7, Maharashtra, India

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 13期

关键词：

D O I：

10.1063/1.123702

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Anomalously high metal-insulator transition temperature T (p) and ferromagnetic transition temperature T (c) have been observed in thin films of La0.8Ca0.2MnO3. Ferromagnetic resonance signals from microwave studies are observed at room temperature (well above Tc) suggesting the presence of multiple magnetic spin systems. The T (p) and T (c) values are higher than that of La0.67Ca0.33MnO3 which have the highest T (p) and T (c) according to the bulk phase diagram. These results suggest that properties well beyond those seen in the bulk phase diagram may be achievable in thin films of the manganites. (C) 1999 American Institute of Physics.

引用

页码：1886 / 1888

页数：3

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