Spin-liquid ground state of the half-filled Kondo lattice in one dimension
- 1 August 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 46 (5) , 3175-3178
- https://doi.org/10.1103/physrevb.46.3175
Abstract
By finite-size analysis of exact diagonalization the existence of a finite spin gap is confirmed for both antiferromagnetic and ferromagnetic coupling in the half-filled Kondo lattice model. For all finite values of antiferromagnetic coupling the system belongs to a class of coherent Kondo spin singlet, whereas for any finite ferromagnetic coupling it scales to a spin S=1 antiferromagnetic chain with a Haldane gap.This publication has 16 references indexed in Scilit:
- Continuum dynamics of the 1-D Heisenberg antiferromagnet: Identification with the O(3) nonlinear sigma modelPublished by Elsevier ,2002
- Singlet ground state of the periodic Anderson model at half filling: A rigorous resultPhysical Review Letters, 1992
- Quantum Monte Carlo study of the one-dimensional symmetric Kondo latticePhysical Review B, 1991
- VARIATIONAL THEORY OF CORRELATED FERMI-LIQUID STATE IN THE KONDO LATTICE MODELInternational Journal of Modern Physics B, 1991
- One-dimensional symmetric Kondo lattice: A quantum Monte Carlo studyPhysical Review Letters, 1990
- Gutzwiller method for heavy electronsPhysical Review B, 1986
- Gutzwiller Variational Approximation to the Heavy-Fermion Ground State of the Periodic Anderson ModelPhysical Review Letters, 1985
- Stability of the Kondo lattice in the large-limitPhysical Review B, 1984
- New approach to the mixed-valence problemPhysical Review B, 1984
- Analogy between the Kondo lattice and the Hubbard model from renormalisation-group calculations in one dimensionJournal of Physics F: Metal Physics, 1981