Magnetic Transition Temperature of (La,Sr)MnO3
- 15 August 1995
- journal article
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 64 (8) , 2754-2757
- https://doi.org/10.1143/jpsj.64.2754
Abstract
Using the Kondo lattice model with classical spins in infinite dimension, magnetic phase transition in the perovskite-type $3d$ transition-metal oxide (La,Sr)MnO$_3$ is theoretically studied. On the Bethe lattice, the self-consistency equations are solved exactly. Curie temperatures at the region of double-exchange ferromagnetism $0.1 < x < 0.25$ as well as the Neel temperature at $x=0$ are well reproduced quantitatively. Pressure effect on the Curie temperature is also discussed.Comment: 7 pages, 1 PS file with 3 figures appended at the end, LaTe
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