Journal
Article title
Authors
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Abstracts
We study effects of an external magnetic field and random site dilution on the magnetic ordering in the geometrically frustrated triangular lattice Ising antiferromagnet by the use of an effective-field theory with correlations. In particular, we find that already a small amount of the quenched dilution locally relieves the frustration which in the presence of the external field is manifested by multiple splitting of a broad frustration-induced 1/3 magnetization plateau. Depending on the field strength, the dilution can either decrease or increase the magnetization or even change its effect from decreasing to increasing.
Discipline
- 75.10.Hk: Classical spin models
- 64.60.De: Statistical mechanics of model systems (Ising model, Potts model, field-theory models, Monte Carlo techniques, etc.)
- 75.50.Ee: Antiferromagnetics
- 75.50.Lk: Spin glasses and other random magnets
- 05.50.+q: Lattice theory and statistics (Ising, Potts, etc.)(see also 64.60.Cn Order-disorder transformations, and 75.10.Hk Classical spin models)
- 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)
Journal
Year
Volume
Issue
Pages
740-741
Physical description
Dates
published
2010-11
Contributors
author
- Department of Theoretical Physics and Astrophysics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovak Republic
author
- Department of Theoretical Physics and Astrophysics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovak Republic
author
- Department of Theoretical Physics and Astrophysics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovak Republic
References
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- 2. G.S. Grest, E.F. Gabl, Phys. Rev. Lett. 43, 1182 (1979)
- 3. R.R. Netz, A.N. Berker, Phys. Rev. Lett. 66, 377 (1991)
- 4. V. Hardy, M.R. Lees, O.A. Petrenko, D.M. Paul, D. Flahaut, S. Hébert, A. Maignan, Phys. Rev. B 70, 064424 (2004)
- 5. X. Yao, S. Dong, H. Yu, J. Liu, Phys. Rev. B 74, 134421 (2006)
- 6. T. Kaneyoshi, Acta Phys. Pol. A 83, 703 (1993)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv118n5010kz