445 citations
- University of CreteGR18 papers
- Ames National LaboratoryUS7 papers
- Iowa State UniversityUS7 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- CEA Paris-SaclayFR3 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3 papers
- University of PatrasGR3 papers
- Astrophysique, Instrumentation et ModélisationFR2 papers
- Center for Astrophysics Harvard & SmithsonianUS2 papers
- FORTH Institute of Electronic Structure and LaserGR2 papers
- Lawrence Berkeley National LaboratoryUS2 papers
- Los Alamos National LaboratoryUS2 papers
5 papers · 1 filter
Femtosecond Coherent Control of Spin with Light in (Ga,Mn)As ferromagnets
M. D. Kapetanakis, I. E. Perakis, K. J. Wickey +2
Using density matrix equations of motion, we predict a femtosecond collective spin tilt triggered by nonlinear, near--ultraviolet (3eV), coherent photoexcitation of (Ga,Mn)As…
Incoherent transport induced by a single static impurity in a Heisenberg chain
O. S. Barisic, P. Prelovsek, A. Metavitsiadis +1
The effect of a single static impurity on the many-body states and on the spin and thermal transport in the one-dimensional anisotropic Heisenberg chain at finite temperatures is s…
Magnetization Relaxation and Collective Spin Excitations in Correlated Double--Exchange Ferromagnets
M. D. Kapetanakis, I. E. Perakis
We study spin relaxation and dynamics of collective spin excitations in correlated double--exchange ferromagnets. For this, we introduce an expansion of the Green's functions equat…
Spin dynamics in (III,Mn)V ferromagnetic semiconductors: the role of correlations
M. D. Kapetanakis, I. E. Perakis
We 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 be…
Non--Heisenberg Spin Dynamics of Double-Exchange Ferromagnets with Coulomb Repulsion
M. D. Kapetanakis, I. E. Perakis
With a variational three--body calculation we study the role of the interplay between the onsite Coulomb, Hund's rule, and superexchange interactions on the spinwave excitation spe…