Robust non-Abelian spin liquid and a possible intermediate phase in the antiferromagnetic Kitaev model with magnetic field
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PhysRevB.97.241110.pdf
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Author(s)
Sheng, D. N.
Zhu, Zheng
Kimchi, Itamar
Fu, Liang
Date Issued
June 2018
Journal
Physical Review B
Publisher
American Physical Society
Citation
Zhu, Zheng, et al. “Robust Non-Abelian Spin Liquid and a Possible Intermediate Phase in the Antiferromagnetic Kitaev Model with Magnetic Field.” Physical Review B, vol. 97, no. 24, June 2018. © 2018 American Physical Society
Version
Final published version
Abstract
We investigate the non-Abelian topological chiral spin-liquid phase in the two-dimensional Kitaev honeycomb model subject to a magnetic field. By combining density matrix renormalization group and exact diagonalization we study the energy spectra, entanglement, topological degeneracy, and expectation values of Wilson loop operators, allowing for a robust characterization. While the ferromagnetic Kitaev spin liquid is already destroyed by a weak magnetic field with Zeeman energy H[subscript *][superscript FM]≈0.02, the antiferromagnetic (AFM) spin liquid remains robust up to a magnetic field that is an order of magnitude larger, H[subscript *][superscript AFM]≈0.2. Interestingly, for larger fields H[subscript *][superscript AFM]
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.97.241110
