Accession Number : ADA578005


Title :   Exact Chiral Spin Liquid with Stable Spin Fermi Surface on the Kagome Lattice


Descriptive Note : Journal article


Corporate Author : TEXAS UNIV AT AUSTIN DEPT OF PHYSICS


Personal Author(s) : Chua, Victor ; Yao, Hong ; Fiete, Gregory A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a578005.pdf


Report Date : 17 May 2011


Pagination or Media Count : 7


Abstract : We study an exactly solvable quantum spin model of Kitaev type on the kagome lattice. We find a rich phase diagram which includes a topological (gapped) chiral spin liquid with gapless chiral edge states, and a gapless chiral spin liquid phase with a spin Fermi surface. The ground state of the current model contains an odd number of electrons per unit cell, which qualitatively distinguishes it from previously studied exactly solvable models with a spin Fermi surface. Moreover, we show that the spin Fermi surface is stable against weak perturbations.


Descriptors :   *FERMI SURFACES , *LIQUIDS , GROUND STATE , PERTURBATIONS , QUANTUM THEORY , TOPOLOGY


Subject Categories : Crystallography
      Quantum Theory and Relativity
      Solid State Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE