2008/12/05 by H. Ebert, Ebert, H., S. Mankovsky +1
Materials Science · Mathematics · Physics and Astronomy · #Ab initio #Ab initio quantum chemistry methods #Anisotropy #Condensed matter physics #Coupling (piping) #Density functional theory #Exchange bias #Exchange interaction #FOS: Physical sciences #Ferromagnetism #Functional theory #Inductive coupling #Magnetic and transport properties of perovskites and related materials #Magnetic anisotropy #Magnetic field #Magnetic properties of thin films #Magnetic semiconductor #Magnetization #Materials Science (cond-mat.mtrl-sci) #Materials science #Mathematical analysis #Mathematics #Other Condensed Matter (cond-mat.other) #Physics #Quantum mechanics #Rare-earth and actinide compounds #Scattering #Scheme (mathematics) #Semiconductor #Spin (aerodynamics) #Tensor (intrinsic definition) #Thermodynamics #cond-mat.mtrl-sci #cond-mat.other
paper · pdf · doi:10.48550/arxiv.0812.1145
arxiv created 2008/12/05 · openalex publication_date 2008/12/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A new scheme to calculate the exchange tensor \underline\underlineJij describing in a phenomenological way the anisotropic exchange coupling of two moments in a magnetically ordered system is presented. The ab-initio approach is based on spin-polarised relativistic multiple-scattering theory within the framework of spin-density functional theory. The scheme is applied to ferromagnetic CrTe as well as the diluted magnetic semiconductor (DMS) system Ga1-xMnxAs. In the later case the results show that there is a noticeable anisotropy in the exchange coupling present, although not as pronounced as suggested in recent theoretical investigations.