Spin-dependent transport in the double-perovskite Sr2CrWO6

Citation
Jb. Philipp et al., Spin-dependent transport in the double-perovskite Sr2CrWO6, APPL PHYS L, 79(22), 2001, pp. 3654-3656
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
79
Issue
22
Year of publication
2001
Pages
3654 - 3656
Database
ISI
SICI code
0003-6951(20011126)79:22<3654:STITDS>2.0.ZU;2-0
Abstract
We report on the preparation and characterization of the double-perovskite compound Sr2CrWO6 with a Curie temperature of 390 K. We have fabricated bot h Sr2CrWO6 bulk sintered polycrystalline bars and high-quality epitaxial th in 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 containi ng a large number of grain boundaries show a large low-field magnetoresista nce 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.