Nonequilibrium electron transitions in magnetic semiconductors exemplified with iron monosilicide were investigated in the work with using spin-fluctuation theory. The generalized model of sp, d- electrons of the narrow-band semiconductors was used. The coupled equations, which provide a possibility of describing the behavior of magnetic semiconductors under self-heating at the influence of strong electric fields, were obtained. We investigated the influence of a self-heating effect on the spin fluctuations and electronic density of sp, d- electrons states of magnetic semiconductors. The dependence of the internal sample temperature on applied voltage was analysed. It is shown that the heat released by current flow gives rise to a growth in amplitude of spin fluctuations and the attendant splitting of electronic spectra, which brings to the gap closure. It was established that the metallization sample should be at lower ambient temperatures. The nonequilibrium electronic transformations considered in this work are the theoretical base for development of devises providing the protection of electronic circuits from electromagnetic pulses.
|Título traduzido da contribuição||DENSITY OF ELECTRONIC STATES OF MAGNETIC SEMICONDUCTORS UNDER SELF-HEATING AT THE INFLUENCE OF EXTERNAL ELECTRIC FIELDS (EXEMPLIFIED WITH IRON MONOSILICIDE)|
|Número de emissão||3-4|
|Estado da publicação||Published - 2014|
Level of Research Output
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