Phase diagram of the Kondo lattice
- 1 September 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 20 (5), 1969-1976
- https://doi.org/10.1103/physrevb.20.1969
Abstract
We discuss the phase diagram of the Kondo lattice: we generalize to the lattice a method proposed by Yoshimori and Sakurai for the single-impurity Kondo problem; this method transforms the Kondo exchange interaction into a fictitious hybridization, and gives a resonance of width at the Fermi level. We study the Kondo phase and compare its energy with the energy of the magnetic phase. The Kondo state is stable when the exchange interaction is larger than a critical value; this state is insulating when the conduction band is half filled.
Keywords
This publication has 22 references indexed in Scilit:
- Specific heat of concentrated kondo systems: (La, Ce)Al2 and CeAl2Zeitschrift für Physik B Condensed Matter, 1978
- Abnormal ordered kondo latticeJournal de Physique Lettres, 1978
- Zero-temperature real-space renormalization-group method for a Kondo-lattice model HamiltonianPhysical Review B, 1977
- Field-Dependent Magnetic Phase Transitions in Mixed-Valent TmSePhysical Review Letters, 1977
- Magnetism and magnetic excitations in narrow-band metalsJournal of Physics F: Metal Physics, 1977
- Kondo Lattice: Real-Space Renormalization-Group ApproachPhysical Review Letters, 1977
- Transition into a magnetic state without magnetic scattering in a rare earth system: CeAl3Solid State Communications, 1974
- Experimental evidence for the formation of a singlet ground state at low temperatures in the dense Kondo system CePhysical Review B, 1974
- Electron Correlation in Ferromagnetism. II. Hybridization ofandBandsPhysical Review B, 1970
- Magnetic and Semiconducting Properties of SmPhysical Review Letters, 1969