Electrical resistivity, hall coefficient, and thermopower of optimally doped high-T c superconductors

Generalized Kondo lattice model and its spin-polaron realization by the projection method for cuprates

“…Note that earlier in the Kondo lattice model for two-dimensional doped antiferromagnets the pseudogap behavior of the current carrier's spectral function and anomalous temperature dependence of the kinetic coefficients were considered [30,31]. However, these studies contained a significant drawback due to ignorance of the hole motion processes with spinflipping.…”

Electrical resistivity and the Hall effect in the doped Mott-Hubbard material with strong spin-charge coupling

“…Later, the multi-moment method was used to describe the low-temperature behavior of kinetic coefficients in polyvalent metals in the presence of phonon scattering [18,19], where the scattering anisotropy increases owing to the umklapp processes. Finally, the method allowed the authors [11][12][13][14][15][16][17] to take into account the strong temperature dependence of the carrier scattering on spin fluctuations in the cuprates and calculate the dependences ρ(T) and R H (T) within the 2D Kondo lattice model.…”

“…is the spin-spin retarded Green's function, Ω q = − 8I 1 (1 − γ 1q )C 1 and n B (ω) is the Bose distribution function. Following [16], for the imaginary part of the spin susceptibility in this paper we use the expression…”

“…The authors [11][12][13][14][15][16][17] showed that correct description of dependences ρ(T) and R H (T) in real strongly correlated materials demands, firstly, taking into account the features of the FS. Secondly, it is necessary to consider the dependence of the velocity and curvature of the FS on the direction.…”

“…Based on the aforesaid, in [11][12][13][14][15][16][17], the dependences ρ(T) and R H (T) were calculated within the spin-polaron approach based on the 2D Kondo lattice model, which takes into account the one-site interaction between carriers and spin subsystem. The strong temperature-dependent anisotropy of carrier scattering on the spin fluctuations was taken into account within the density matrix formalism using the seven-moment approximation for the nonequilibrium distribution function.…”