Interaction effects and magnetic ordering in GMR alloys
- 15 November 1994
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 76 (10) , 6802-6804
- https://doi.org/10.1063/1.358472
Abstract
In this paper AgNiFe alloy films were examined both before and after annealing. Characterization of the samples and examination of interaction effects was carried out by measuring the temperature decay of remanence, initial susceptibility, and magnetoresistance. The temperature decay of remanence reveals that annealing widens the distribution of energy barriers, which is indicative of grain growth. The behavior of the initial susceptibility as a function of temperature is analogous to that found in spin glasses. From these measurements, it is believed that interaction effects in these systems are small.This publication has 3 references indexed in Scilit:
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- Superparamagnetism and relaxation effects in granular Ni-Si and Ni- filmsPhysical Review B, 1974
- A mechanism of magnetic hysteresis in heterogeneous alloysPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1948