Benutzer: Gast  Login
Titel:

Signatures of Dirac Cones in a DMRG Study of the Kagome Heisenberg Model

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
He, Yin-Chen; Zaletel, Michael P.; Oshikawa, Masaki; Pollmann, Frank
Abstract:
The antiferromagnetic spin-1/2 Heisenberg model on a kagome lattice is one of the most paradigmatic models in the context of spin liquids, yet the precise nature of its ground state is not understood. We use large-scale density matrix renormalization group simulations (DMRG) on infinitely long cylinders and find indications for the formation of a gapless Dirac spin liquid. First, we use adiabatic flux insertion to demonstrate that the spin gap is much smaller than estimated from previous DMRG si...     »
Zeitschriftentitel:
Physical Review X 2017-07
Jahr:
2017
Band / Volume:
7
Heft / Issue:
3
Volltext / DOI:
doi:10.1103/physrevx.7.031020
Verlag / Institution:
American Physical Society (APS)
E-ISSN:
2160-3308
Publikationsdatum:
28.07.2017
 BibTeX