8 papers
Ferromagnetic films with three to twenty spin layers as described using second order perturbed Heisenberg Hamiltonian
P. Samarasekara, T. H. Y. I. K. de Silva
Modified second order perturbed Heisenberg Hamiltonian was employed to describe the magnetic properties of ferromagnetic films with three to twenty spin layers for the first time.…
Third Order Perturbed Heisenberg Hamiltonian of Thick Spinel Ferrite Films
P. Samarasekara
The third order perturbed Heisenberg Hamiltonian was employed to investigate the spinel thick nickel ferrite films. The variation of energy up to N=10000 was studied. At N=75, the…
Effect of stress induced anisotropy and applied magnetic field on second order perturbed energy of thin ferromagnetic films
P. Samarasekara
All the simulations were carried out for sc(001) film with three (N=3) layers. The effect of applied magnetic field and stress induced anisotropy on energy of ultra-thin ferromagne…
Thick ferromagnetic films and their anisotropies as described by second order perturbed Heisenberg Hamiltonian
P. Samarasekara
Second and fourth order anisotropy dependence of energy of thick simple cubic ferromagnetic films with 10000 layers is explained using Heisenberg Hamiltonian with second order pert…
Magnetic anisotropy dependence of the energy of oriented thick ferromagnetic films
P. Samarasekara
Heisenberg Hamiltonian was employed to describe the variation of energy of thick ferromagnetic films with second and fourth order anisotropies. At angle of 1.36 degrees and anisotr…
Third Order Perturbed Energy of Cobalt Ferrite Thick Films
P. Samarasekara
Magnetic properties and easy axis orientation of cobalt ferrite films with applied magnetic field and number of layers were studied. According to our theoretical studies explained…