Epitaxial growth of new half-metallic ferromagnet zinc-blende CrAs and the substrate temperature dependence

Epitaxial zinc-blende CrAs thin films were grown at two different temperatures. CrAs (2 nm) grown at 200degreesC formed plateau-shapes, whereas CrAs (2 mn) grown at 300degreesC formed dispersed dots. The thin film grown at 200degreesC showed ferromagnetic behavior at room temperature, and the Curie temperature was estimated to be over 400 K. (C) 2002 Elsevier Science B.V. All rights reserved.