Abstract
The magnetic specific heat, magnetization and low-field magnetic susceptibility of Co-based diluted magnetic semiconductors Zn 1−x Co x Se and Zn 1−x Co x S have been calculated by using a Hamiltonian which takes into account both the Heisenberg-type nearest-neighbor exchange interactions and spin-orbit interactions. A fair agreement between theory and experiment is obtained. No magnetization steps are predicted in the ranges of temperature and magnetic field considered here.
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