Spin-dependent transport in the double-perovskite Sr2CrWO6

被引：67

作者：

Philipp, JB

Reisinger, D

Schonecke, M

Marx, A

Erb, A

Alff, L

Gross, R

Klein, J

机构：

[1] Bayer Akad Wissensch, Walther Meissner Inst, D-85748 Garching, Germany

[2] Univ Cologne, Inst Phys, D-50937 Cologne, Germany

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 22期

关键词：

D O I：

10.1063/1.1421227

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the preparation and characterization of the double-perovskite compound Sr2CrWO6 with a Curie temperature of 390 K. We have fabricated both Sr2CrWO6 bulk sintered polycrystalline bars and high-quality epitaxial thin films on SrTiO3 substrates by pulsed-laser deposition. The samples were characterized by thermogravimetric analysis, x-ray diffraction, electrical transport, and magnetization measurements. Polycrystalline samples containing a large number of grain boundaries show a large low-field magnetoresistance of up to 100% at 5 K. At room temperature, this effect is reduced to a few percent. Our results show that Sr2CrWO6 is an interesting candidate for room-temperature magnetoelectronic materials. (C) 2001 American Institute of Physics.

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页码：3654 / 3656

页数：3

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