Spin-triplet solitons in the one-dimensional symmetric Kondo lattice
- 1 May 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 47 (18) , 11935-11939
- https://doi.org/10.1103/physrevb.47.11935
Abstract
By analyzing the Gutzwiller-projected, self-consistent mean-field solutions we demonstrate that for all coupling strengths of the half-filled, one-dimensional Kondo lattice (1) the spin excitations are local triplets, (2) the charge gap is greater than the spin gap, and (3) doping by Kondo holes induces residual spin-1/2 local moments. The implications of these results on a number of experiments and their relevance to the ‘‘Kondo insulators’’ will be discussed.Keywords
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