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3 articles for “magnetic anisotropy constant”
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A Solution of Fourth Order Perturbed Heisenberg Hamiltonian with Seven Magnetic Parameters
Abstract: For the first time, the fourth order perturbed Heisenberg Hamiltonian with all seven magnetic energy parameters was solved for simple cubic structured ferromagnetic ultrathin films. Spin exchange interaction, magnetic dipole interaction, second order magnetic anisotropy, fourth order magnetic anisotropy, applied magnetic field, demagnetization energy and stress induced anisotropy were considered. 3D graphs of total magnetic energy versusstressinduced anisotropy and angle were plotted for different values of second order and fourth …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 12, Issue 1, 2022 · pp. 1–13 Read article
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Ferromagnetic thin Films with Simple Cubic Structure as Described by Fourth Order Perturbed Heisenberg Hamiltonian
Abstract: For the first time, fourth order perturbed Heisenberg Hamiltonian has been applied to study the properties of simple cubic structured ferromagnetic ultrathin films with two spin layers. Only the spin exchange interaction, second order magnetic anisotropy constant and the short-range magnetic dipole interaction were taken into account. Only when the second order anisotropy constant varies from one spin plane to the other spin plane, perturbation becomes nonzero. 3-D plots of …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 3, 2020 · pp. 35–43 Read article
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Orientation of Easy Axis of Ferromagnetic Films as Explained by Third Order Perturbed Heisenberg Hamiltonian
Abstract: The third order perturbed Heisenberg Hamiltonian has been applied to explain themagnetic easy axis orientation. Ferromagnetic CoPt/AlN multilayer thin films withnumber of layers N=11, 16 and 21synthesized on fused quartz substrates using dcmagnetron sputtering technique have been employed as experimental data. According toexperimental research performed by some other researchers, easy axis of these fccstructured ferromagnetic films is oriented in the plane of the film above one particulartemperature. Average value of …
Published in Research & Reviews : Journal of Physics · Vol. 2, Issue 3, 2013 · pp. 5–9 Read article