Effect of demagnetization factor on total energy of ultra-thin ferromagnetic films with three layers
Abstract
The energy of ultra-thin sc(001) ferromagnetic film with three layers will be investigated using classical Heisenberg Hamiltonian. Energy curves show several minimums indicating that the film can be easily oriented in these directions under the influence of certain values of demagnetization factor. When the demagnetization factor is given by μ ω 0 d N=8, the angle corresponding to first minimum is 0.6 radians for sc(001) ferromagnetic lattice. Under the influence of demagnetization factor of μ ω 0 d N= 7.5, energy minimum can be observed at 0.6 radians for bcc(001) lattice. The energy curve of bcc(001) ferromagnetic lattice is smoother compared with that of sc(001) lattice.References
Bentaleb M., El Aouad N. and Saber M 2002. Magnetic properties of the spin -1/2 Ising Ferromagnetic thin films with alternating superlattice configuration, Chinese J. Phys., 40(3): 307- 314
Dantziger M., Glinsmann B., Scheffler S., Zimmermann B. and Jensen P.J 2002. In-plane dipole coupling anisotropy of a square ferromagnetic Heisenberg monolayer, Phys. Rev., B(66): 094416 1-6
Lederman David, Ricardo Ramirez and Miguel Kiwi 2004. Monte Carlo simulations of exchange bias of ferromagnetic thin films on FeF2(110), Phys. Rev. B70: 184422 1-7
Martin J. Klein and Robert S. Smith 1951. Thin ferromagnetic films, Phys. Rev. 81: 378- 380
Samarasekara P 2006. Second order perturbation of Heisenberg Hamiltonian for nonoriented ultra-thin ferromagnetic films, Elec. J. Theo. Phys., 3(11): 71-83
Samarasekara P 2006. A solution of the Heisenberg Hamiltonian for oriented thick ferromagnetic films, Chinese J. Phys., 44(5): 377-386
Usadel KD and Hucht A 2002. Anisotropy of ultrathin ferromagnetic films and the spin reorientation transition, Phys. Rev. B 66: 024419 1-6
Downloads
Published
Issue
Section
License
From Volume 7 (2016) onwards, all articles published in Ruhuna Journal of Science are Open Access articles published under the Creative Commons CC BY-NC 4.0 International License. This License permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Copyright on any research article published in RJS is retained by the respective author(s).
Authors who publish with this journal agree to the following terms:
a) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License CC-BY-NC 4.0 International, that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
b) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
c) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
