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3 articles for “spin reorientation temperature”
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Spin Reorientation of CoPt/AlN and Gd Films Described by Third Order Perturbed Heisenberg Hamiltonian
Abstract: Spin reorientation of experimentally synthesized CoPt/AlN and Gd films has been described using third order perturbed Heisenberg Hamiltonian. Easy axis oriented ferromagnetic thin films find potential applications in magnetic memory devices and MMIC. Spin exchange interaction energy, long range dipole interaction energy, magnetic anisotropy energies, magnetostatic energy, stress induced anisotropy and demagnetization energy were taken into account. Values of these parameters of particular bulk magnetic materials were employed for this …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 11, Issue 1, 2021 · pp. 37–45 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
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In Plane Oriented Strontium Ferrite Thin Films Described by Spin Reorientation
Abstract: For the first time, in plane orientation of magnetic easy axis of sputtered strontium hexaferrite thin films has been explained using modified Heisenberg Hamiltonian model with stress induced anisotropy term. The variation of average value of in plane spin component with temperature was plotted in order to determine the temperature at which easy axis is oriented in the plane of the strontium ferrite film. The average value of in plane …
Published in Research & Reviews : Journal of Physics · Vol. 2, Issue 2, 2013 · pp. 12–16 Read article