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Unusual Behavior in The Magnetic Anisotropy of Ultra-Thin Co Sandwiches: The Role of Au Underlayers.

Published online by Cambridge University Press:  15 February 2011

Christian Marlière ,
Brad N. Engel  and
Charles M. Falco
Christian Marlière
Affiliation:
The Optical Sciences Center and the Department of Physics, University of Arizona, Tucson, AZ 85721
Brad N. Engel
Affiliation:
The Optical Sciences Center and the Department of Physics, University of Arizona, Tucson, AZ 85721
Charles M. Falco
Affiliation:
The Optical Sciences Center and the Department of Physics, University of Arizona, Tucson, AZ 85721
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Abstract

We have used in situ polar Kerr effect measurements to study the magnetic anisotropy of X/Co/Y sandwich structures grown by MBE on Cu(111) buffers, where X and Y are variable thicknesses of Au. For fixed values of Y and in the case of an underlayer wedge, e.g. variable X value, we have found a sharp minimum in both coercive field and perpendicular anisotropy at ≈1 atomic layer of the Au underlayer. This anisotropy behavior is opposite to that of an Au overlayer deposited on a Co film, i.e. variable Y and fixed X.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 384: Symposium L – Magnetic Ultrathin films, Multilayers and Surfaces , 1995 , 221
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

[1] Néel, L., J. Phys. Rad. 15, 225 (1954).Google Scholar
[2] Chappert, C. and Bruno, P., J. Appl. Phys. 64, 5736 (1988).Google Scholar
[3] Kingetsu, T. and Sakai, K., Phys. Rev. B48, 4140 (1993).Google Scholar
[4] Freeman, A. J. and Wu, R., J. Magn. Magn. Mater. 100, 497 (1991).Google Scholar
[5] Engel, B., Wiedmann, M., Leeuwen, R. Van and Falco, C., Phys. Rev. B48, 9894 (1993).Google Scholar
[6] Beauvillain, P. et al. , J. Appl. Phys. 76, 6078 (1994).Google Scholar
[7] Kohlhepp, J. and Gradmann, U., to be published in J. Mag. Mag. Mat.Google Scholar
[8] Wiedmann, M., Marlière, C., Engel, B. and Falco, C., 14th Intern. Colloquium on Magnetic Films and Surfaces (August-September 1994).Google Scholar
[9] Schumann, F.O., Buckley, M.E. and Bland, J.A.C., J. Appl. Phys. 76, 6075 (1994).Google Scholar
[10] Ortega, J.E., Himpsel, F.J., Mankey, G.J. and Willis, R.F., Phys. Rev. B47, 1540 (1993).Google Scholar
[11] Li, D., Pearson, J., Mattson, J., Bader, S. and Johnson, P., Phys. Rev. B51, 7195 (1995).Google Scholar
[12] Knoppe, H. and Bauer, E., Phys. Rev. B48, 5621 (1993).Google Scholar
[13] Grolier, V., Thèse, Université de Paris-Orsay, 1994.Google Scholar
[14] Bruno, P. et al. , J. Appl. Phys. 68, 5759 (1990).Google Scholar
[15] Sakurai, M. and Shinjo, T., J. Phys. Soc. Japan 62, 1853 (1993).Google Scholar