Strong oscillations on capacitance and conductance have been observed in p-type Hg<Subscript>0.8</Subscript>Zn<Subscript>0.2</Subscript>Te metal-insulator-semiconductor structures, made by using a recent process for the interface passivation. This behaviour is attributed to a two-dimensional electron gas in the n-inversion layer and the...</subscript></subscript>

In the asymptotic limit, the interlayer exchange coupling decays as D <Superscript>−2</Superscript>, where D is the spacer thickness. A systematic procedure for calculating the preasymptotic corrections, i.e., the terms of order D <Superscript>−n </Superscript> with n ≥ 3, is presented. The temperature dependence of the preasymptotic...</superscript></superscript>

Using the bosonization technique, a theory for the collective excitations of the interacting electrons in quantum wires with two subbands occupied is developed. The dispersion relations for the inter-subband charge and spin density excitations are determined. The results are used to interpret...