Springer LINK: The European Physical Journal B - Abstract Volume 9 Issue 2 (1999) pp 245-250

The European Physical Journal B

ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)

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Abstract Volume 9 Issue 2 (1999) pp 245-250

On the orientational dependence of giant magnetoresistance

C. Blaas (1)(2), P. Weinberger (1)(2), L. Szunyogh (2)(3), J. Kudrnovský (2)(4), V. Drchal (2)(4), P. M. Levy (5), C. Sommers (6) (a)

(1) Institut für Technische Elektrochemie, Technische Universität Wien, Getreidemarkt 9/158, 1060 Wien, Austria
(2) Center for Computational Materials Science, Gumpendorferstrasse 1a, 1060 Wien, Austria
(3) Department of Theoretical Physics, Technical University Budapest, Budafoki út 8, 1521 Budapest, Hungary
(4) Institute of Physics, Czech Academy of Sciences, 18040 Praha 8, Czech Republic
(5) Department of Physics, New York University, New York, NY 10003, USA
(6) Laboratoire de Physique des Solides, Université de Paris-Sud, 91405 Orsay Cedex, France

Received 30 November 1998

Abstract: The functional dependence of the giant magnetoresistance (GMR) with respect to the relative angle between the orientations of the magnetization in the magnetic slabs of a trilayer system is calculated by using the Kubo-Greenwood formula for electrical transport together with the fully-relativistic spin-polarized screened Korringa-Kohn-Rostoker method for semi-infinite systems and the coherent potential approximation. It is found that the functional dependence of the GMR is essentially of the form $ (1-\cos \varphi )$.

PACS. 71.20.Be Transition metals and alloys - 72.15-v Electronic conduction in metals and alloys - 75.30.Et Exchange and superexchange interactions

(a) email: sommers@lps.u-psud.fr

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