1304.2150 (Vadym Zayets)

Correlations between spin accumulation and degree of time-inverse
breaking for electron gas in solid    [PDF]

Vadym Zayets

It is shown that the electron spin may not be conserved after a spin-independent scattering. This fact strongly limits the validity of the classical model of spin-up/spin-down bands, which has been used for description of magnetic properties of conduction electrons. It is shown that it is possible to divide all conduction electrons into two group distinguished by their symmetry for time reversal. The number of electrons in each group is conserved after a spin-independent scattering. This makes it convenient to use these groups for describing of the magnetic properties of conduction electrons. The energy distribution of spins, the Pauli paramagnetism and the spin distribution in the ferromagnetic metals are described within the presented model. The effects of spin torque and spin-torque current are described. The origin of spin-transfer torque is explained within presented model.

View original: http://arxiv.org/abs/1304.2150