Ural State University, Lenin ave., 51, Ekaterinburg 620083, Russia
and V.P. Silin
P.N. Lebedev Physical Institute, RAS, 53 Leninskiy prospekt, Moscow 119991, Russia pos Анотація:
Received May 29, 2009
The starting statements of the quantum electron liquid theory as the basis for theoretical description of the contribution of low-lying excited one-particle states of the electron system to the low-temperature properties of solids are formulated. This quantummechanical
formulation does not define concretely
the initially real one-particle basis, therefore it allows one to consider the role of electron–electron interaction
under the conditions of orbital quantization and other important quantum phenomena. The derivation of the basic thermodynamic relations is briefly described and the formulas for electron specific heat, elastic modulus and magnetic susceptibility obtained
in the framework of the Fermi-liquid approach without generally adopted model assumptions are given. The third section concerns the application of the theory in the problem of description of the role of electron–electron interaction in the thermodynamic phenomena in the systems with hybridized electron states, which are formed by the donor impurity resonance levels in the conduction band of a crystal. An equation for spontaneous localized spin magnetic
moment in hybridized states is stated.
PACS: 72.20.Dp General theory, scattering mechanisms; PACS: 72.20.Fr Low-field transport and mobility; piezoresistance; PACS: 72.80.Ey III–V and II–VI semiconductors.
Key words: electron theory, electron liquid, electron specific heat, hybridized states.