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Investigation of anisotropy constants dependence of ultra-thin ferromagnetic films with second order perturbed Heisenberg Hamiltonian

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dc.contributor.author Samarasekara, P.
dc.date.accessioned 2015-10-06T05:44:42Z
dc.date.available 2015-10-06T05:44:42Z
dc.date.issued 2007
dc.identifier.citation Samarasekara, P. 2007. Investigation of anisotropy constants dependence of ultra-thin ferromagnetic films with second order perturbed Heisenberg Hamiltonian. Journal of Science, University of Kelaniya, 3: 73-82. en_US
dc.identifier.uri
dc.identifier.uri http://repository.kln.ac.lk/handle/123456789/9953
dc.description.abstract The variation of energy of ferromagnetic ultra-thin films with second and fourth order anisotropy was investigated using Heisenberg Hamiltonian with second order perturbation. The study was limited to sc(001) film with three layers. Graphs indicate energy minimums at certain values of second order anisotropy, fourth order anisotropy and angle. Films with fourth order anisotropy ω )4( Dm =4 can be easily oriented in the direction given by angle of 2.66 radians for the values of other energy terms used in this simulation. When the second order anisotropy ( ω )2( Dm ) is 3.1, preferred direction is 0.754 radians. When the second order anisotropy varies at a constant value of fourth order anisotropy, the graph indicates more energy minimums. en_US
dc.language.iso en en_US
dc.publisher University of Kelaniya en_US
dc.subject Heisenberg Hamiltonian en_US
dc.subject magnetic thin films en_US
dc.subject magnetic anisotropies en_US
dc.subject spin en_US
dc.title Investigation of anisotropy constants dependence of ultra-thin ferromagnetic films with second order perturbed Heisenberg Hamiltonian en_US
dc.type Article en_US


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