2006 Volume 4 Pages 58-62
Magnetic structures at zinc-blende ferromagnetic (FM) and antiferromagnetic (AFM) interfaces, CrAs/Cr, CrAs/GaAs/Cr, and CrSe/MnSe, were investigated by means of the full-potential linearized augmented plane-wave method in order to search the half-metallic exchange bias interfaces. The CrAs/Cr structure is found to lose the half-metallicity at the CrAs interface while the CrAs/GaAs/Cr structure retains the half-metallicity but the energy difference between parallel and antiparallel moment alignments of the FM and AFM layer at the interface significantly reduces. In contrast, the CrSe/MnSe interface induces an excellent half-metallicity, which importantly offers a key ingredient as a promising half-metallic exchange bias. [DOI: 10.1380/ejssnt.2006.58]
