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Experimental configuration for the simultaneous study of magnetization reversal and giant magnetoresitance effects in exchange coupled spin valve structures

G. SCHINTEIE1, C. KUNCSER2,* , A. KUNCSER2, F. IOFCIU2, I. JEPU3, S. ANTOHE2

Affiliation

  1. National Institute for Physics of Materials, P.O. Box MG 7, 77125, Bucharest-Magurele, Romania
  2. University of Bucharest, Faculty of Physics, Atomistilor Street 405, P.O. Box MG-11, Bucharest-Magurele, 077125, Romania
  3. National Institute for Lasers, Plasma and Radiation Physics, P.O. Box MG 36, 77125, Bucharest-Magurele, Romania

Abstract

A designed experimental configuration for the simultaneous study of magnetization reversal and giant magnetoresistance effects in layered systems is reported. The suitability of the device, designed mainly for didactical purposes, to prove giant magneto-resistance effects is exemplified in case of exchange coupled spin valve structures. The multilayer structures were prepared by theromo-ionic vacuum arc methods and initially characterized by X-ray diffractometry and energy dispersive Xray spectroscopy. According to the performed experiments, it has been clearly proven the presence of magnetoresistance maxima over ranges of applied fields inducing antiparallel magnetizations of the two ferromagnetic layers interfacing a thin conductive layer..

Keywords

Spin valve structures, MOKE, GMR.

Submitted at: July 19, 2011
Accepted at: Sept. 15, 2011

Citation

G. SCHINTEIE, C. KUNCSER, A. KUNCSER, F. IOFCIU, I. JEPU, S. ANTOHE, Experimental configuration for the simultaneous study of magnetization reversal and giant magnetoresitance effects in exchange coupled spin valve structures, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 9, pp. 1091-1094 (2011)