Role of defects and disorder in the half-metallic full-Heusler compounds
arXiv:0709.4183 · doi:10.1007/978-3-540-69882-1_1
Abstract
Half-metallic ferromagnets and especially the full-Heusler alloys containing Co are at the center of scientific research due to their potential applications in spintronics. For realistic devices it is important to control accurately the creation of defects in these alloys. We review some of our late results on the role of defects and impurities in these compounds. More precisely we present results for the following cases (i) doping and disorder in CoCr(Mn)Al(Si) alloys, (ii) half-metallic ferrimagnetism appeared due to the creation of Cr(Mn) antisites in these alloys, (iii) Co-doping in MnVAl(Si) alloys leading to half-metallic antiferromagnetism, and finally (iv) the occurrence of vacancies in the full-Heusler alloys containing Co and Mn. These results are susceptible of encouraging further theoretical and experimental research in the properties of these compounds.
Chapter intended for a book with contributions of the invited speakers of the International Conference on Nanoscale Magnetism 2007. Revised version contains new figure 3
References in corpus (5)
- Correlation in the transition metal based Heusler compounds CoMnSi and CoFeSi
- Spin-polarization and electronic properties of half-metallic Heusler alloys calculated from first-principles
- Ab-initio design of half-metallic fully-compensated ferrimagnets: the case of CrMnZ (Z= P, As, Sb, Bi) compounds
- Effect of doping and disorder on the half-metallicity of full Heusler alloy
- A review of the electronic and magnetic properties of tetrahedrally bonded half-metallic ferromagnets