8 papers · 1 filter
Spin Torque and its Relation to Spin Filtering
Wonkee Kim, F. Marsiglio
The spin torque exerted on a magnetic moment is a reaction to spin filtering when spin-polarized electrons interact with a thin ferromagnetic film. We show that, for certain condit…
Transport in vortex state of d-wave superconductors at zero temperature: Wiedemann-Franz violation
Wonkee Kim, F. Marsiglio, J. P. Carbotte
We show that the Wiedemann-Franz law is violated at zero temperature in the vortex state of a d-wave BCS superconductor with isotropic impurity scattering. We use a semiclassical a…
Self-Consistent Modification To The Electron Density Of States Due To Electron-Phonon Coupling In Metals
Fatih Dogan, Frank Marsiglio
The "standard" theory of a normal metal consists of an effective electron band which interacts with phonons and impurities. The effects due to the electron-phonon interaction are o…
Dynamics of a magnetic moment induced by a spin-polarized current
Wonkee Kim, F. Marsiglio
Effects of an incoming spin-polarized current on a magnetic moment are explored. We found that the spin torque occurs only when the incoming spin changes as a function of time insi…
Low Temperature Thermal Conductivity of High Purity YBaCuO in the Vortex State
Wonkee Kim, F. Marsiglio, J. P. Carbotte
The low temperature thermal conductivity of a d-wave superconductor is considered for arbitrary strength of the impurity potential. A random distribution of vortices is included wi…
Wiedemann-Franz violation in the vortex state of a d-wave superconductor
Wonkee Kim, F. Marsiglio, J. P. Carbotte
We show that the Wiedemann-Franz law is violated in the vortex state of a d-wave superconductor at zero temperature. We use a semiclassical approach, which includes the Doppler shi…