PIRSA:11040097

Video URL

https://pirsa.org/11040097

Ordering in the Spatially Anisotropic Heisenberg Model on a Triangular Lattice

Kallin, C. (2011). Ordering in the Spatially Anisotropic Heisenberg Model on a Triangular Lattice. Perimeter Institute for Theoretical Physics. https://pirsa.org/11040097

Kallin, Catherine. Ordering in the Spatially Anisotropic Heisenberg Model on a Triangular Lattice. Perimeter Institute for Theoretical Physics, Apr. 26, 2011, https://pirsa.org/11040097 

          @misc{ scivideos_PIRSA:11040097,
            doi = {10.48660/11040097},
            url = {https://pirsa.org/11040097},
            author = {Kallin, Catherine},
            keywords = {Quantum Matter},
            language = {en},
            title = {Ordering in the Spatially Anisotropic Heisenberg Model on a Triangular Lattice},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2011},
            month = {apr},
            note = {PIRSA:11040097 see, \url{https://scivideos.org/pirsa/11040097}}
          }

Catherine Kallin McMaster University

Talk numberPIRSA:11040097
DOI10.48660/11040097
Source RepositoryPIRSA
Collection
Talk Type Conference
Subject

Abstract

The spin 1/2 Heisenberg model on a triangular lattice with interchain exchange, J', weaker than the intrachain exchange J, is a particularly well-studied frustrated magnet because of its relevance to Cs2CuCl4, which is thought to be in close proximity to a spin liquid phase. Although an incomensurate spiral state is stable for J'~J, a variet of theoretical studies find evidence for spin liquid behavior well before the decoupled chain limit, J'=0, is reached. However, a renormalization group approach found the surprising result that a collinear antiferromagnetic phase was stable for small J'/J. This talk will briefly review earlier studies and present new results on the relative stability of spiral, collinear and spin liquid phases.