Spin dynamics in (III,Mn)V ferromagnetic semiconductors: the role of correlations

Simple item page
dc.creatorKapetanakis, M. D.
dc.creatorPerakis, I. E.
dc.date2008-05-09
dc.date2008-08-25
dc.date.accessioned2026-07-07T09:57:51Z
dc.date.available2026-07-07T09:57:51Z
dc.descriptionWe address the role of correlations between spin and charge degrees of freedom on the dynamical properties of ferromagnetic systems governed by the magnetic exchange interaction between itinerant and localized spins. For this we introduce a general theory that treats quantum fluctuations beyond the Random Phase Approximation based on a correlation expansion of the Green's function equations of motion. We calculate the spin susceptibility, spin--wave excitation spectrum, and magnetization precession damping. We find that correlations strongly affect the magnitude and carrier concentration dependence of the spin stiffness and magnetization Gilbert damping.
dc.description4 pages, 3 figures, content and figures changed, published in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0805.1320
dc.identifierhttp://arxiv.org/abs/0805.1320
dc.identifierPRL 101, 097201 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.097201
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167499
dc.subjectStrongly Correlated Electrons
dc.titleSpin dynamics in (III,Mn)V ferromagnetic semiconductors: the role of correlations
dc.typetext

Files

Collections

arXiv