On Quantum Solitons in the Sawtooth Lattice

Details On Quantum Solitons in the Sawtooth Lattice On Quantum Solitons in the Sawtooth Lattice

1995-08-26

arxiv.org/abs/cond-mat/9508121v1

Physics

Condensed Matter

12 pages in basic tex with 5 postscript figures attached

Scientific paper

10.1103/PhysRevB.53.6401

We study the sawtooth lattice of a coupled spin $1/2$ 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 $Y Cu O_{2.5} ~$.

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