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Simultaneous in-plane Kerr effects in Fe/GaAs(110) thin films.
J. M. Florczak, E. D. Dahlberg, J. N. Kuznia, A. M. Wowchak, P. I. Cohen
J. Appl. Phys. 69 p. 4997 (1991).
Abstract: For many materials that can be magnetized, part of the magnetization process may be attributed to a rotation of the magnetization vector. In this context, a combination of the longitudinal and transverse magneto-optical Kerr effects are used to detect two orthogonal magnetization components in single-crystal Fe/GaAs (110) thin films. Hysteresis curves obtained by this magneto-optical technique are presented for fields along the in-plane (001), (110), and (111) crystal directions. For those curves that show signs of rotation, these data are simulated using a coherent rotation mechanism for the magnetization process and Fresnel reflection coefficients for the two Kerr effects. From the experimental data, it is found that the (111) curves have shapes that are indicative of a rotational process. On the other hand, both the (001) and (110) have magnetization curves that do not follow a simple rotation. From the coherent rotation model, there is qualitative agreement between the modeled and experimental data for the (111). (9 References).
last modified:
10.Jun.2002
by Thomas Gredig