A Dirac Spin Liquid May Fill the Gap in the Kagome Antiferromagnet
1. Signatures of Dirac cones in a DMRG study of the Kagome Heisenberg model.
Authors: Yin- Chen He, Michael P. Zaletel, Masaki Oshikawa, and Frank Pollmann.
arXiv:1611.06238
2. Competing Spin Liquid Phases in the S=1/2 Heisenberg Model on the Kagome Lattice.
Authors: Shenghan Jiang, Panjin Kim, Jung Hoon Han, Ying Ran.
arXiv:1610.02024
Recommended with a commentary by Ashvin Vishwanath, Harvard University.
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DOI: 10.36471/JCCM_December_2016_03
https://doi.org/10.36471/JCCM_December_2016_03
In this context, one should probably also mention this recent evidence from tensor network methods in favor of a gapless QSL:
https://arxiv.org/abs/1610.04727