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Epitaxial Heusler Alloys: New Materials for Semiconductor Spintronics

Published online by Cambridge University Press:  31 January 2011

Chris Palmstrøm
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Abstract

Ferromagnetic materials that have Curie temperatures above room temperature, crystal structures and lattice matching compatible with compound semiconductors, and high spin polarizations show great promise for integration with semiconductor spintronics. Heusler alloys have crystal structures (fcc) and lattice parameters similar to many compound semiconductors, high spin polarization at the Fermi level, and high Curie temperatures. These properties make them particularly attractive for injectors and detectors of spin-polarized currents. This review discusses the progress and issues related to integrating full and half Heusler alloys into ferromagnetic compound semiconductor heterostructures.

Keywords

crystallographic structureepitaxial Heusler alloysintermetallic compoundsmagnetic propertiesmolecular-beam epitaxy (MBE)semiconductorssingle crystalsspin-polarized materialsspintronicsthin films
Type
Research Article
Information
MRS Bulletin , Volume 28 , Issue 10: New Materials for Spintronics , October 2003 , pp. 725 - 728
Copyright
Copyright © Materials Research Society 2003

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