Growth and properties of high-Curie-temperature Sr2CrReO6 thin films

被引：69

作者：

Asano, H ^{[1
]}

Kozuka, N ^{[1
]}

Tsuzuki, A ^{[1
]}

Matsui, M ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 02期

关键词：

D O I：

10.1063/1.1769085

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Thin films of ordered double-perovskite Sr2CrReO6 have been grown epitaxially onto SrTiO3 substrates by sputtering, and their microstructural, electrical, and magnetic properties are investigated. It is found that a wide growth-temperature range of at least 700-800degreesC can yield epitaxial films with superior magnetic properties and atomically flat surfaces. These films exhibit Curie temperatures T-c of up to 620 K, and saturation magnetizations M-s of 0.9muB/formula unit (f.u.), which is comparable to the predicted value of 1mu(B)/f.u. for the fully ordered half-metallic material. Owing to the wide temperature window for growth of high-quality films, the surface morphology and coercivity of Sr2CrReO6 films are highly controllable, which is favorable for fabrication of magnetic tunnel junctions. (C) 2004 American Institute of Physics.

引用

页码：263 / 265

页数：3

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