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Stress induced anisotropy and applied field dependence of second order perturbed energy of thick ferromagnetic films

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dc.contributor.author Samarasekara, P.
dc.date.accessioned 2015-10-07T04:25:50Z
dc.date.available 2015-10-07T04:25:50Z
dc.date.issued 2011
dc.identifier.citation Samarasekara, P. 2011. Stress induced anisotropy and applied field dependence of second order perturbed energy of thick ferromagnetic films. Journal of Science, University of Kelaniya, 6: 77-84. en_US
dc.identifier.uri
dc.identifier.uri http://repository.kln.ac.lk/handle/123456789/9963
dc.description.abstract The energy of thick ferromagnetic films up to 10000 layers has been explained in this report using classical Heisenberg Hamiltonian with second order perturbation. Especially the effect of applied magnetic field and stress on energy of sc(001) ferromagnetic thick films has been investigated. Under the influence of perpendicular magnetic field given by  out H = 6, the sc(001) ferromagnetic film with 10000 layers can be easily oriented in 0.5 radians direction. The easy direction of sc(001) ferromagnetic film with 10000 layers was found to be 0.6 radians when the in-plane magnetic field of  in H = 4.2 is applied. Because the easy axis oriented magnetic films are useful in magnetic memory devices and monolithic microwave integrated circuits (MMIC), the determination of easy direction is important. If the stress given by  s K = 2.6 is applied in perpendicular direction to the film plane, the film can be easily oriented in direction of 3 radians. Energy under influence of perpendicular magnetic field is larger than the energy under the influence of in-plane magnetic field. After introducing the second order perturbation to the Heisenberg Hamiltonian, even some small variations of energy could be investigated as indicated in the graphs in this manuscript. en_US
dc.language.iso en en_US
dc.publisher University of Kelaniya en_US
dc.subject Ferromagnetic materials en_US
dc.subject thick films en_US
dc.subject Heisenberg Hamiltonian en_US
dc.subject stress induced anisotropy en_US
dc.title Stress induced anisotropy and applied field dependence of second order perturbed energy of thick ferromagnetic films en_US
dc.type Article en_US


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