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Magnetic and Magneto-Optic Properties of PtFe (001) and PtCo (001) Thin Films

Published online by Cambridge University Press:  03 September 2012

Bruce M. Lairson
Affiliation:
Department of Materials Science and Engineering Stanford University, Stanford, CA 94305–2205
Mark R. Visokay
Affiliation:
Department of Materials Science and Engineering Stanford University, Stanford, CA 94305–2205
Robert Sinclair
Affiliation:
Department of Materials Science and Engineering Stanford University, Stanford, CA 94305–2205
Bruce M. Clemens
Affiliation:
Department of Materials Science and Engineering Stanford University, Stanford, CA 94305–2205
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Abstract

We report on the magnetic and Magneto-optical properties of PtFe and PtCo intermetallic thin films when they have the CuAu(I) tetragonal structure and their crystallographic C axis is oriented out of the film plane. These films possess large perpendicular magnetic anisotropy energies. We observe changes in the Magneto-optic Kerr rotations of Pt-Fe and Pt-Co alloys associated with the formation of the uniaxial CuAu(I) crystal structure. In particular, we report the observation of up to 60% enhancement in the Magneto-optic Ken-rotation for ordered, epitaxial PtFe intermetallic alloy over that of the random face centered cubic alloy. This enhancement is wavelength dependent, with a peak in the visible light range at 2.0 eV.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

1. Buschow, K. H. J. in Ferromagnetic Materials, Vol. 4, Wohlfarth, E. P. and Buschow, K. H. J., ed., Elsevier Science Publishers B.V. (1988).Google Scholar
2. Lairson, B. M., Visokay, M. R., Sinclair, R., and Clemens, B. M., Appl. Phys. Lett., 61, 1390 (1992).Google Scholar
3. Lairson, B. M., Visokay, M. R., Sinclair, R., and Clemens, B. M., J. Appl. Phys. in press (1993).Google Scholar
4. Lairson, B. M., Visokay, M. R., Sinclair, R., and Clemens, B. M., Appl. Phys. Lett., 62, 639 (1993),Google Scholar
5. Visokay, M. R., Lairson, B. M., Sinclair, R., and Clemens, B. M., Proceedings of Session 0, Spring 1993 MRS Meeting.Google Scholar
6. Katayama, T., Suzuki, Y., Awano, H., Nishihara, Y., and Koshizuka, N., Phys. Rev. Lett., 60, 1426 (1988).Google Scholar
7. Suzuki, Y., Katayama, T., Yoshida, S., Tanaka, K. and Sato, K., Phys. Rev. Lett., 68, 3355, (1992).Google Scholar
8. Sticht, J. et al., unpublished.Google Scholar
9. Weller, D. et al., these proceedings.Google Scholar
10. Erskine, J. L. and Stern, E. A., Phys. Rev. B 69, 1239 (1973).Google Scholar