Abstrakti
The bound magnetic polaron (BMP) model is studied for a ferromagnetic non-degenerate semiconductor. Using Zubarev's Green's function technique a set of coupled equations for the nonuniform spin polarization around an impurity is obtained and the binding energy of a shallow impurity state. A variational solution of these equations indicates that near the magnetic transition temperature the binding energy increases and the orbit of the bound electron shrinks. The application of a magnetic field decreases the binding energy and increases the electron orbit. The calculated temperature and magnetic field dependences of the resistivity are compared with the measured values for a EuSe sample.
Alkuperäiskieli | Englanti |
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Sivut | 181-190 |
Julkaisu | Physica Status Solidi. B: Basic Research |
Vuosikerta | 94 |
Numero | 1 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 1979 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |