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On the half-metallicity of Co2FeSi Heusler alloy: an experimental and ab initio study
L. Makinistian, Muhammad M. Faiz, Raghava P. Panguluri +6
Co2FeSi, a Heusler alloy with the highest magnetic moment per unit cell and the highest Curie temperature, has largely been described theoretically as a half-metal. This conclusion…
Large Stark Effect for Li Donor Spins in Si
Luke Pendo, E. M. Handberg, V. N. Smelyanskiy +1
We study the effect of a static electric field on lithium donor spins in silicon. The anisotropy of the effective mass leads to the anisotropy of the quadratic Stark susceptibility…
Reentrant Formation of Magnetic Polarons in Quantum Dots
J. M. Pientka, R. Oszwałdowski, A. G. Petukhov +2
We propose a model of magnetic polaron formation in semiconductor quantum dots doped with magnetic ions. A wetting layer serves as a reservoir of photo-generated holes, which can b…
Spin ordering in magnetic quantum dots: From core-halo to Wigner molecules
R. Oszwałdowski, P. Stano, A. G. Petukhov +1
The interplay of confinement and Coulomb interactions in quantum dots can lead to strongly correlated phases differing qualitatively from the Fermi liquid behavior. We explore how…
Magnetic anisotropies of quantum dots
Karel Vyborny, J. E. Han, Rafal Oszwaldowski +2
Magnetic anisotropies in quantum dots (QDs) doped with magnetic ions are discussed in terms of two frameworks: anisotropic -factors and magnetocrystalline anisotropy energy. It…