Abstract
Using the density matrix renormalization group and a bosonization approach, we study a spin-1/2 antiferromagnetic Heisenberg chain with near-neighbor coupling and frustrating second-neighbor coupling , particularly in the limit ≫. This system exhibits both dimerization and incommensurate spiral spin correlations. We argue that this system is closely related to a doped, spin-gapped phase of the one-dimensional Kondo lattice. © 1996 The American Physical Society.
- Received 26 February 1996
DOI:https://doi.org/10.1103/PhysRevB.54.9862
©1996 American Physical Society