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Abstracts
The S=1 pseudospin formalism was recently proposed to describe the charge degree of freedom in a model high-T_{c} cuprate with the on-site Hilbert space reduced to the three effective valence centers, nominally Cu^{1+;2+;3+}. With small corrections the model becomes equivalent to a strongly anisotropic S=1 quantum magnet in an external magnetic field. We have applied a generalized mean-field approach and quantum Monte-Carlo technique for the model 2D S=1 system to find the ground state phase with its evolution under deviation from half-filling and different correlation functions. Special attention is given to the role played by the on-site correlation ("single-ion anisotropy").
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Year
Volume
Issue
Pages
426-428
Physical description
Dates
published
2018-03
Contributors
author
- Ural Federal University, Ekaterinburg 620083, Russia
author
- Ural Federal University, Ekaterinburg 620083, Russia
author
- Ural Federal University, Ekaterinburg 620083, Russia
author
- Ural Federal University, Ekaterinburg 620083, Russia
author
- Ural Federal University, Ekaterinburg 620083, Russia
References
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- [8] G. Schmid, S. Todo, M. Troyer, A. Dorneich, Phys. Rev. Lett. 88, 167208 (2002), doi: 10.1103/PhysRevLett.88.167208
- [9] V.G. Rousseau, Phys. Rev. E 78, 056707 (2008), doi: 10.1103/PhysRevE.78.056707
Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv133n3p027kz