Spin polarization of electrons in a quantum film based on a narrow-gap semiconductor
The size-quantized spectrum of a film (quantum well) with a variable band gap based on Pb1−xSnxSe compounds has been studied. It is shown that an asymmetric modulation of the band gap in the film growth direction leads to the spin splitting of the electron subbands of a uniform quantum well. The effect of the state of the film surface on spontaneous polarization of the electron gas is discussed.