Abstract
AbstractMagnetothermal oscillations in dilute BiSb alloys are measured with dc methods in fields up to 22 kOe. The period of the oscillation agrees with that one obtained from the de Haas‐van Alphen effect. A splitting of the peak is observed around 15 kOe and considered as the spin splitting of electrons. The spin‐splitting factor 2Δ calculated from the present results shows some deviations from unity. The deviations are interpreted by assuming the effect of the other bands after Baraff. The variation of 2Δ with increasing Sb concentration seems to imply that the relative energies of the other bands at the point L in the Brillouin zone „shrink”︁ with regard to the centre of the gap.
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