Correlation between texture, anisotropy, and vector magnetization processes investigated by two-dimensional vector vibrating sample magnetometry in BaO(Fe₂O₃)₆ thin film

Paul R. Ohodnicki, Carnegie Mellon University - Pittsburgh PA
K. Y. Goh, Carnegie Mellon University - Pittsburgh PA
Michael E. McHenry, Carnegie Mellon University - Pittsburgh PA
Katherine S. Ziemer, Northeastern University - Dept. of Chemical Engineering
Zhaihui Chen, Northeastern University - Dept. of Electrical and Computer Engineering
C. Vittoria, Northeastern University - Dept. of Electrical and Computer Engineering
Vincent Girard Harris (1962-), Northeastern University - Dept. of Electrical and Computer Engineering

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Originally published in Journal of Applied Physics, vol.103, no.7, March 2008. doi: 10.1063/1.2838630

Abstract

High ferromagnetic resonance frequencies and low linewidths in BaO(Fe₂O₃)₆ thin films are achieved by obtaining a low-dispersion of crystallite easy c axes normal to the film. X-ray diffraction and magnetic force microscopy are used to characterize texture and magnetic domain structure for a BaO(Fe₂O₃)₆ film deposited on (0001) SiC with a MgO (111) template layer. Strong c-axis texture normal to the film is observed resulting in strong uniaxial anisotropy. The consequent vector magnetization processes due to a combination of domain wall motion and magnetization rotation are characterized by two dimensional vector coil vibrating sample magnetometry (VVSM).