English

On Quantum Solitons in the Sawtooth Lattice

Condensed Matter 2009-10-28 v1

Abstract

We study the sawtooth lattice of a coupled spin 1/21/2 Heisenberg system, a variant of the railroad trestle lattice. The ground state of this system is two-fold degenerate with periodic boundary conditions and supports kink antikink excitations, which are distinct in this case, unlike the railroad trestle lattice. The resulting low temperature thermodynamics is compared with the recently discovered Delafossites YCuO2.5 Y Cu O_{2.5} ~.

Keywords

Cite

@article{arxiv.cond-mat/9508121,
  title  = {On Quantum Solitons in the Sawtooth Lattice},
  author = {Diptiman Sen and B. Sriram Shastry and R. E. Walstedt and R. Cava},
  journal= {arXiv preprint arXiv:cond-mat/9508121},
  year   = {2009}
}

Comments

12 pages in basic tex with 5 postscript figures attached