Title of article :
Effects of electric field on magnetic properties of MnxGe1x diluted magnetic semiconductors
Author/Authors :
Assefa, Gezahegn Department of Physics - Addis Ababa University - P.O.Box 1176 - Addis Ababa, Ethiopia - Department of Physics - Wollo University - P.O.Box 1145 - Dessie, Ethiopia , Singh, P Department of Physics - Addis Ababa University - P.O.Box 1176 - Addis Ababa, Ethiopia
Abstract :
We report the effect of external electric field (EEF) on the magnetic properties of MnxGe1x, diluted magnetic semiconductor. We present a Kondo Lattice
Model type Hamiltonian with exchange coupling between
localized spins, itinerant holes and the EEF. The magnetization,
the dispersion and critical temperature (Tc) are
calculated for different values of EEF parameters (a) using
double time temperature-dependent Green function formalism.
The enhancement of the (Tc) with the EEF is
shown to be very distinct and is in agreement with recent
experimental observation and much required for spintronics
applications and devices.
Keywords :
Diluted magnetic semiconductor , Spintronics , Electric field control of ferromagnetism , Green function
Journal title :
Journal of Theoretical and Applied Physics
