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Abstracts
The ground-state phase diagram is studied for a diluted model magnet with FCC structure and modified Ruderman-Kittel-Kasuya-Yosida interaction. The modification consists in taking into account the exponential damping for the long-range interaction as well as the nearest-neighbors antiferromagnetic superexchange couplings. The existence of paramagnetic, ordered ferromagnetic and three distinct antiferromagnetic phases is shown. The stability areas of the phases upon the free-carriers concentration are investigated.
Discipline
- 75.10.-b: General theory and models of magnetic ordering(see also 05.50.+q Lattice theory and statistics)
- 75.30.Hx: Magnetic impurity interactions
- 75.50.Pp: Magnetic semiconductors
- 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
421-424
Physical description
Dates
published
2008-01
received
2007-07-09
Contributors
author
- Department of Solid State Physics, University of Łódź, Pomorska 149/153, 90-236 Łódź, Poland
author
- Department of Solid State Physics, University of Łódź, Pomorska 149/153, 90-236 Łódź, Poland
References
- 1. T. Dietl, A. Haury, Y. Merle d'Aubigné, Phys. Rev. B 55, R3347 (1997)
- 2. D.J. Priour, Jr., S. Das Sarma, Phys. Rev. Lett. 97, 127201 (2006)
- 3. O.M. Fedorych, Z. Wilamowski, M. Potemski, M. Byszewski, J. Sadowski, Semicond. Sci. Technol. 19, S492 (2004)
- 4. T. Balcerzak, J.W. Tucker, A. Bobák, M. Jaščur, Czech J. Phys. 54, D643 (2004)
- 5. D.C. Mattis, The Theory of Magnetism I, Springer-Verlag, Berlin 1981
- 6. A.H. Morrish, The Physical Principles of Magnetism, Wiley, New York 1965
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1103kz