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

• Authors: V. Ilkovič , J. Kecer
• Languages of publication: EN

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.

Keywords

EN

75.10.Jm; 75.30.Ds; 75.30.Kz; 75.70.Ak

Discipline

• 75.70.Ak: Magnetic properties of monolayers and thin films
• 75.30.Ds: Spin waves(for spin-wave resonance, see 76.50.+g)
• 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)
• 75.10.Jm: Quantized spin models, including quantum spin frustration

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 201-204

Dates

published

2008-01

received

2007-07-09

Contributors

author

V. Ilkovič

• Department of Theoretical Physics and Astrophysics, Faculty of Science, P.J. Šafarik University, Jesenná5, 040 01 Košice, Slovak Republic

author

J. Kecer

• Department of Physics, Technical University, Park Komenského 2, 040 01 Košice, Slovak Republic

References

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Identifiers

DOI

10.12693/APhysPolA.113.201