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Magnetic and transport properties of Fe/Cr superlattices (invited)
We describe the magnetic and transport properties of Fe(001)/Cr(001) superlattices grown on GaAs (001) by molecular-beam epitaxy and characterized by reflection high-energy electron diffraction (RHEED...
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Observation of magnetic resonance modes of Fe layers coupled via intervening Cr (invited)
Multiple-frequency (2–14 GHz) ferromagnetic resonance (FMR) has been used to directly observe the coupled resonance modes of a large set of single-crystal Fe/Cr/Fe(001) sandwiches grown by molec...

Theory of magnetic superlattices: Interlayer exchange coupling and magnetoresistance of transition metal structures (invited)

J. Appl. Phys. 67, 5914 (1990); doi:10.1063/1.346014

Issue Date: 1 May 1990

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P. M. Levy
Department of Physics, New York University, 4 Washington Place, New York, New York 10003

K. Ounadjela
Laboratoire de Physique des Solides, Université de Paris-Sud, Bâtiment 510, 91405 Orsay, France

S. Zhang and Y. Wang
Department of Physics, New York University, 4 Washington Place, New York, New York 10003

C. B. Sommers and A. Fert
Laboratoire de Physique des Solides, Université de Paris-Sud, Bâtiment 510, 91405 Orsay, France
Theoretical calculations and models to explain two unusual features of Fe/Cr magnetically layered structures are presented: (1) Strong antiferromagnetic (AF) couplings between Fe layers separated by Cr layers have been found in Fe/Cr/Fe sandwiches and Fe/Cr superlattices. These AF couplings are too strong to be accounted for by dipolar interactions and have to be ascribed to exchange interactions through the Cr layers. The interlayer exchange coupling from numerical calculations of the electronic structure of Fe/Cr superlattices based on the local density approximation is derived. (2) Recently, giant magnetoresistance effects have been found in Fe/Cr magnetically layered structures for currents in the plane of the layers. The spin-dependent scattering at the Fe/Cr interfaces that comes from interface roughness, as well as that in the bulk of the layers are considered. The resistivity of these magnetic superlattices are calculated by adapting the quantum treatment of the electrical conductivity of ultrathin metallic films. We find the resistivity when the Fe moments in adjacent layers are parallel and antiparallel, and compare the results with experimental data. Journal of Applied Physics is copyrighted by The American Institute of Physics.
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KEYWORDS and PACS

Keywords
PACS
  • 75.50.Rr
    Magnetic properties and materials Studies of specific magnetic materials Magnetism in interface structures (including layer and superlattice structures)
  • 73.20.Dx
    Electronic structure and electrical properties of surfaces, interfaces, and thin films Surface and interface electron states Electron states in low-dimensional structures (including quantum wells, superlattices, layer structures, and intercalation compounds)
  • 71.70.Gm
    Electron states Level splitting and interactions Exchange interactions
  • 72.15.Gd
    Electronic transport in condensed matter Electronic conduction in metals and alloys Galvanomagnetic and other magnetotransport effects
  • YEAR: 1990

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PUBLICATION DATA

ISSN:
0021-8979 (print)   1089-7550 (online)
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REFERENCES (15)
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  1. A. Fert, A. Barthelemy, M. N. Baibich, S. Hadjoudj, P. Etienne, R. Cabanel, S. Lequien, F. Nguyen Van Dau, and G. Creuzet (these proceedings).
  2. P. Grünberg, R. Schreiber, Y. Pang, M. N. Brodsky, and H. Sowers, Phys. Rev. Lett. 57, 2442 (1986). [MEDLINE]
  3. M. N. Baibich, J. M. Broto, A. Fert, F. Nguyen Van Dau, F. Petroff, P. Etienne, G. Creuzet, A. Friederch, and J. Chazelas, Phys. Rev. Lett. 61, 2472 (1988). [MEDLINE]
  4. See for example, E. Fawcett, Rev. Mod. Phys. 60, 209 (1988).
  5. F. Herman, P. Lambin, and O. Jepsen, Phys. Rev. B 31, 4394 (1985); [ISI] [MEDLINE]
    6. J. Appl. Phys. 57, 3654 (1985). [ISI]
  6. A. R. Williams, J. Kübler, and C. D. Gelatt, Phys. Rev. B 19, 6094 (1979);
    7. J. Kübler, A. R. Williams, and C. B. Sommers, Phys. Rev. B 28, 1745 (1983).
  7. C. L. Fu, A. J. Freeman, and T. Oguchi, Phys. Rev. Lett. 54, 2700 (1985); [MEDLINE]
    8. C. L. Fu and A. J. Freeman, Phys. Rev. B 35, 925 (1987). [ISI] [MEDLINE]
  8. J. Kübler, J. Magn. Magn. Mater. 20, 277 (1980). [Inspec] [ISI]
  9. A. Fert, Summer School on Metallic Multilayers, Aussois, France, September, 1989 (Trans Tech, Switzerland) (to be published).
  10. K. Fuchs, Proc. Philos. Camb. Soc. 34, 100 (1938);
    11. E. H. Sondheimer, Adv. Phys. 1, 1 (1952).
  11. R. F. Carcia and A. Suna, J. Appl. Phys. 54, 2000 (1983). [ISI]
  12. R. E. Camley and J. Barnas, Phys. Rev. Lett. 63, 664 (1989); [MEDLINE]
    13. J. Barnas, A. Fuss, R. E. Camley, P. Grünberg, and W. Zinn (to be published).
  13. Z. Tesanovic, M. V. Jaric, and S. Maekawa, Phys. Rev. Lett. 57, 2760 (1986); [MEDLINE]
    14. for a treatment of surface roughness scattering see also G. Fishman and D. Calecki, Phys. Rev. Lett. 62, 1302 (1989). [MEDLINE]
  14. P. M. Levy, S. Zhang, and A. Fert (to be published).
  15. A. Fert and I. A. Campbell, J. Phys. F 6, 849 (1976);
    16. I. A. Campbell and A. Fert, in Ferromagnetic Materials, edited by E. P. Wohlfarth (North-Holland, Amsterdam, 1982), Vol. 3, p. 769.

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