2020/10/20 by Krzysztof Gawarecki, Michał Zieliński, Gawarecki, Krzysztof +1 · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Semiconductor Quantum Structures and Devices #Superconductivity in MgB2 and Alloys
paper · pdf · doi:10.48550/arxiv.2010.10489
We report studies of k-dependent Land 'e g-factor, performed by both\ncontinuous media approximation k.p method, and atomistic tight-binding\nsp3d5s^* approach. We propose an effective, mesoscopic model for InAs\nthat we are able to successfully compare with atomistic calculations, for both\nvery small and very large nanostructures, with a number of atoms reaching over\n60 million. Finally, for nanostructure dimensions corresponding to near-zero\ng-factor we report electron spin states anti-crossing as a function of system\nsize, despite no shape-anisotropy nor strain effects included, and merely due\nto breaking of atomistic symmetry of cation/anion planes constituting the\nsystem.\n