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2008 | 113 | 1 | 201-204
Article title

Parallel Susceptibility of Thin Ferromagnetic Films within Many-Body Green's Function Theory

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Abstracts
EN
Parallel susceptibility of the quantum Blume-Capel model for ferromagnetic films is calculated within the Green function theory. The Hamiltonian includes a Heisenberg term with the different surface exchange coupling with respect to bulk, an external magnetic field, a second-order uniaxial single-ion anisotropy, and the exchange anisotropy. The importance of collective excitations is demonstrated by comparing with result calculated within mean field approximation.
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Contributors
author
  • Department of Theoretical Physics and Astrophysics, Faculty of Science, P.J. Šafarik University, Jesenná5, 040 01 Košice, Slovak Republic
author
  • Department of Physics, Technical University, Park Komenského 2, 040 01 Košice, Slovak Republic
References
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  • 5. J. Kecer, S. Tuleja, Acta Phys. Pol. A 113, 197 (2007)
  • 6. W. Gasser, E. Heiner, K. Elk, Greensche Funktionen in Festkörper- und Vielteilchenphysik, Wiley-VCH Verlag, Berlin 2001, p. 21
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  • 8. P. Fröbrich, P.J. Kuntz, Phys. Rep. 432, 223 (2006)
Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1049kz
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