Effects of Zeeman field on a spin Bose-metal phase
- Creators
- Lai, Hsin-Hua
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Motrunich, Olexei I.
Abstract
We consider Zeeman field effects on a spin Bose-metal (SBM) phase on a two-leg triangular ladder. This phase was found in a spin-1/2 model with ring exchanges [D. N. Sheng, O. I. Motrunich, and M. P. A. Fisher, Phys. Rev. B 79, 205112 (2009)] and was also proposed to appear in an interacting electronic model with longer-ranged repulsion [H.-H. Lai and O. I. Motrunich, Phys. Rev. B 81, 045105 (2010)]. Using bosonization of a spinon-gauge theory, we study the stability of the SBM phase and its properties under the field. We also explore phases arising from potential instabilities of the SBM; in all cases, we find a gap to spin-1 excitations while spin-nematic correlations are power law. We discuss two-dimensional analogues of these phases where spinons can pair with their own species.
Additional Information
© 2010 The American Physical Society. Received 16 June 2010; published 16 September 2010. We would like to thank C.-C. Chen, M. P. A. Fisher, and P. A. Lee for useful discussions. This research is supported by the National Science Foundation through Grant No. DMR-0907145 and by the A. P. Sloan Foundation.Attached Files
Published - Lai2010p11491Phys_Rev_B.pdf
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Additional details
- Eprint ID
- 20386
- Resolver ID
- CaltechAUTHORS:20101011-143452308
- NSF
- DMR-0907145
- Alfred P. Sloan Foundation
- Created
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2010-11-15Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field