Temperature and Pressure Effects on the Resistivity of the Manganese Oxides

Abstract

The temperature and pressure effects on the resistivity of the manganese oxides are studied analytically via the Kondo lattice model with a strong Hund's coupling. We obtain analytically the single-particle density of states on the Bethe lattice in the large connectivity limit using the analytical variant of the dynamic Lanczos method. From the density of states for the doped system, we obtain resistivity and show resistivity drop when temperature crosses the magnetic transition point. We also demonstrate the effect of pressure both below and above the transition temperature.

13 pages RevTex, 4 figures, to be published in Phys. Rev. B

References in corpus (6)

• Correlated Electrons in High Temperature Superconductors
• Double Exchange Alone Does Not Explain the Resistivity of $L{a}_{1-x}S{r}_{x}Mn{O}_3$
• Transport Properties of the Kondo Lattice Model in the Limit $S=\infty$ and $D=\infty$
• Magnetic Transition Temperature of (La,Sr)MnO${}_3$
• Analytic Treatment of Mott-Hubbard Transition in the Half-Filled Hubbard Model
• Quantitative Description of $V_2{O}_3$ by the Hubbard Model in Infinite Dimensions