Giant Magnetoresistance and Oscillations In Interlayer Exchange Coupling In Co/Cu/Co Multi-Layers

Thin films

Authors

  • Haji Shirinzadeh Department Semiconductors (Device Fabrication), Surface Physics and Thin Films Material And Energy Research Center (MERC) Alvand Avenue, Postal Code: 13145-1659, Tehran, Iran

DOI:

https://doi.org/10.14331/ijfps.2014.330070

Keywords:

Thin films, Multilayers, Interlayer, Exchange Coupling, Sputtered

Abstract

The oscillations in interlayer exchange coupling between ferromagnetic layers which are Separated by a nonmagnetic spacer layer, manifests n oscillatory magnetic properties which depend on the thickness of Copper interlayer. Using Molecular Beam Epitaxy system. We have made multilayer films with alternating cobalt and copper thin films. The preliminary results are reported on microstructure and magnetization properties. The conductance between first and third film depends on the relative orientation of magnetization between them. This optimizes to large magneto resistance changes called Giant Magneto-resistance effect.

Downloads

Download data is not yet available.

References

Baibich, M. N., Broto, J., Fert, A., Van Dau, F. N., Petroff, F., Etienne, P., . . . Chazelas, J. (1988). Giant magnetoresistance of (001) Fe/(001) Cr magnetic superlattices. Physical Review Letters, 61(21), 2472.

Bass, J., & Pratt Jr, W. (1999). Current-perpendicular (CPP) magnetoresistance in magnetic metallic multilayers. Journal of magnetism and magnetic materials, 200(1), 274-289.

Bloemen, P. (1996). Interlayer Exchange Coupling and Giant Magnetoresistance in Magnetic Multilayers. ACTA PHYSICA POLONICA SERIES A, 89, 277-300.

Bloemen, P., Van Dalen, R., De Jonge, W., Johnson, M., & Aan de Stegge, J. (1993). Short period oscillation of the interlayer exchange coupling in the ferromagnetic regime in Co/Cu/Co (100). Journal of applied physics, 73(10), 5972-5974.

Butler, W., & Zhang, X.-G. (1991). Accuracy and convergence properties of multiple-scattering theory in three dimensions. Physical Review B, 44(3), 969.

Butler, W., Zhang, X.-G., Nicholson, D., & MacLaren, J. (1995). First-principles calculations of electrical conductivity and giant magnetoresistance of Co‖ Cu‖ Co spin valves. Physical Review B, 52(18), 13399.

Celotta, R., Pierce, D., & Unguris, J. (1995). SEMPA Studies of Exchange Coupling in Magnetic Multilayers. MRS Bulletin, 20(10), 30-33.

H. Oshima and K. Miyano. ((1998)). Appl. Phys. Lett. 73, 2203.

Honda, S., Fujimoto, T., & Nawate, M. (1996). Giant magnetoresistance of perpendicular magnetic Co/Au multilayers. Journal of applied physics, 80(9), 5175-5182.

Hope, S., Gu, E., Choi, B., & Bland, J. (1998). Spin engineering in ultrathin Cu/Co/Cu (110). Physical Review Letters, 80(8), 1750.

Johnson, M., Bloemen, P., Den Broeder, F., & De Vries, J. (1996). Magnetic anisotropy in metallic multilayers. Reports on Progress in Physics, 59(11), 1409.

Mertig, I., Zeller, R., & Dederichs, P. (1994). Ab initio calculations of the deviations from Matthiessen’s rule for dilute ternary alloys. Physical Review B, 49(17), 11767.

Nesbet, R. K. (1998). Theory of spin-dependent conductivity in GMR materials. IBM journal of research and development, 42(1), 53-72.

Ono, T., Ooka, Y., Miyajima, H., & Otani, Y. (1999). 2e2/h to e2/h switching of quantum conductance associated with a change in nanoscale ferromagnetic domain structure. Applied physics letters, 75(11), 1622-1624.

Schneider, C., Bressler, P., Schuster, P., Kirschner, J., De Miguel, J., & Miranda, R. (1990). Curie temperature of ultrathin films of fcc-cobalt epitaxially grown on atomically flat Cu (100) surfaces. Physical Review Letters, 64(9), 1059.

Sondheimer, E. H. (1952). The mean free path of electrons in metals. Advances in physics, 1(1), 1-42.

Speriosu, V., Dieny, B., Humbert, P., Gurney, B., & Lefakis, H. (1991). Nonoscillatory magnetoresistance in Co/Cu/Co layered structures with oscillatory coupling. Physical Review B, 44(10), 5358.

Valet, T., & Fert, A. (1993). Theory of the perpendicular magnetoresistance in magnetic multilayers. Physical Review B, 48(10), 7099.

Vojta, T., Mertig, I., & Zeller, R. (1992). Calculation of the residual resistivity and the thermoelectric power of sp impurities in silver. Physical Review B, 46(24), 15761.

Weber, E. R. (1963 and 1988). Gas-generating device: US Patent 3,110,258.

Weber, W., Bischof, A., Allenspach, R., Würsch, C., Back, C., & Pescia, D. (1996). Oscillatory magnetic anisotropy and quantum well states in Cu/Co/Cu (100) films. Physical Review Letters, 76(18), 3424.

Yang, Z., & Scheinfein, M. (1995). 90° domains in Co/Cu giant magnetoresistance superlattices. Applied physics letters, 66(2), 236-238.

Zhang, X.-G., & Butler, W. (1995). Conductivity of metallic films and multilayers. Physical Review B, 51(15), 10085.

Downloads

Published

2014-09-30

How to Cite

Shirinzadeh, H. . . (2014). Giant Magnetoresistance and Oscillations In Interlayer Exchange Coupling In Co/Cu/Co Multi-Layers: Thin films. International Journal of Fundamental Physical Sciences, 4(3), 89-94. https://doi.org/10.14331/ijfps.2014.330070

Issue

Vol. 4 No. 3 (2014): IJFPS

Section

ORIGINAL ARTICLES

License

Copyright (c) 2014 Fundamental Journals

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Crossref
Scopus
Google Scholar
Europe PMC