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Anomalous Hall effect in paramagnetic two dimensional systems
Dimitrie Culcer, Allan MacDonald, Qian Niu
We investigate the possibility of observing the anomalous Hall effect (AHE) in two dimensional paramagnetic systems. We apply the semiclassical equations of motion to carriers in t…
Spin-polarized current oscillations in diluted magnetic semiconductor multiple quantum wells
Manuel Bejar, David Sanchez, Gloria Platero +1
We study the spin and charge dynamics of electrons in n-doped II--VI semiconductor multiple quantum wells when one or more quantum wells are doped with Mn. The interplay between st…
Magnetization orientation dependence of the quasiparticle spectrum and hysteresis in ferromagnetic metal nanoparticles
A. Cehovin, C. M. Canali, A. H. MacDonald
We use a microscopic Slater-Koster tight-binding model with short-range exchange and atomic spin-orbit interactions that realistically captures generic features of ferromagnetic me…
Field-domain spintronics in magnetic semiconductor multiple quantum wells
David Sanchez, A. H. MacDonald, Gloria Platero
We develop a theory of non-linear growth direction transport in magnetically doped II-VI compound semiconductor multiple-quantum-well systems. We find that the formation of electri…
Dissipationless Spin Transport in Thin Film Ferromagnets
Jürgen König, Martin Chr. Bønsager, Allan H. MacDonald
Metallic thin film ferromagnets generically possess spiral states that carry dissipationless spin currents. We relate the critical values of these supercurrents to micromagnetic ma…
Theory of Ferromagnetism in Diluted Magnetic Semiconductors
Jürgen König, Hsiu-Hau Lin, Allan H. MacDonald
Carrier-induced ferromagnetism has been observed in several (III,Mn)V semiconductors. We review the theoretical picture of these ferromagnetic semiconductors that emerges from a mo…