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Cited by 204

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Quantum Phase Diagram of the Triangular-LatticeXXZModel in a Magnetic Field

Open access
Yamamoto, Daisuke, Marmorini, Giacomo, Danshita, Ippei·2014·Physical Review Letters

Abstract

The triangular lattice of S=1/2 spins with XXZ anisotropy is a ubiquitous model for various frustrated systems in different contexts. We determine the quantum phase diagram of the model in the plane of the anisotropy parameter and the magnetic field by means of a large-size cluster mean-field method with a scaling scheme. We find that quantum fluctuations break up the nontrivial continuous degeneracy into two first-order phase transitions. In between the two transition boundaries, the degeneracy-lifting results in the emergence of a new coplanar phase not predicted in the classical counterpart of the model. We suggest that the quantum phase transition to the nonclassical coplanar state can be observed in triangular-lattice antiferromagnets with large easy-plane anisotropy or in the corresponding optical-lattice systems.

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Metadata

Authors
Yamamoto, D., Marmorini, G., & Danshita, I.
Venue
Physical Review Letters
Published
2014-03-26
Volume
112
Issue
12
Pages
127203-127203
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2133187771
Cited by
204
References
3
FWCI
8.58
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Quantum Phase Diagram of the Triangular-LatticeXXZModel in a Magnetic Field. https://app.cochat.ai/papers/10.1103/physrevlett.112.127203
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Yamamoto, D., Marmorini, G., & Danshita, I. (2014). Quantum Phase Diagram of the Triangular-LatticeXXZModel in a Magnetic Field. Physical Review Letters. https://doi.org/10.1103/physrevlett.112.127203

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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