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In plane orientation of magnetic easy axis of sputtered strontium hexaferritethin films has been explained using classical Heisenberg Hamiltonian. Thevariation of average value of in plane spin component with temperature wasplotted in order to determine the temperature at which easy axis is oriented inthe plane of the strontium ferrite film. The average value of in plane spincomponent in this 2-D model reaches zero at one particular temperature. Thisparticular temperature obtained using our theoretical model agrees with theexperimental value of the temperature of rf sputtered polycrystalline strontiumferrite thin films deposited on polycrystalline Al2O3 substrates (500 0C). Thisspin reorientation temperature solely depends on the values of energyparameters used in our modified Heisenberg Hamiltonian equation.

Easy axis orientation of Strontium ferrite thin films described by spin reorientation