Quantum solitons in the sawtooth lattice

1995/08/26 by Diptiman Sen, B. Sriram Shastry, R. E. Walstedt +2 · 6 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Theoretical and Computational Physics #cond-mat

paper · pdf · doi:10.1103/physrevb.53.6401

12 pages in basic tex with 5 postscript figures attached

arxiv created 1995/08/26 · openalex publication_date 1996/03/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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 twofold 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 YCuO_2.5. \textcopyright 1996 the American Physical Society.

Citations

• On Next-Nearest-Neighbor Interaction in Linear Chain. I
• Antiferromagnetic model with known ground state

Cited by

• Exotic Ground State Phases of S=1/2 Heisenberg Δ-Chain with Ferromagnetic Main Chain
• Ground state of a Heisenberg chain with next-nearest-neighbor bond alternation
• Structure factor of low-energy spin excitations in aS=12kagome antiferromagnet
• Antiferromagnetic sawtooth chain with spin-12and spin-1sites
• Exactly solvable Ising-Heisenberg chain with triangularXXZ-Heisenberg plaquettes
• Exact spontaneous plaquette ground states for high-spin ladder models