Quantum Phase Transition on a Spin-One Spatially Anisotropic Frustrated Zigzag Square Lattice

We study quantum phase transitions in the easy-plane spin-one Heisenberg model on a zigzag square lattice with next-nearest-neighbor interactions at zero temperature using the SU(3) Schwinger boson formalism in a mean field approximation. We present the phase diagram and the dispersion relation for...

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Bibliographic Details
Published in:Brazilian journal of physics 2018-12, Vol.48 (6), p.543-547
Main Author: Pires, A. S. T.
Format: Article
Language:English
Subjects:
Anisotropy
Condensed Matter
Heisenberg theory
Parameters
Phase diagrams
Phase transitions
Physics
Physics and Astronomy
Statistical models
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Summary:We study quantum phase transitions in the easy-plane spin-one Heisenberg model on a zigzag square lattice with next-nearest-neighbor interactions at zero temperature using the SU(3) Schwinger boson formalism in a mean field approximation. We present the phase diagram and the dispersion relation for several values of the parameters. A magnetically disordered region in the phase diagram is found, even when the anisotropy parameter vanishes.
ISSN:0103-9733
1678-4448
DOI:10.1007/s13538-018-0594-4