Magnetic structure and giant magnetoresistance in granular metals

Authors
Kechrakos, D Trohidou, KN
Citation
D. Kechrakos et Kn. Trohidou, Magnetic structure and giant magnetoresistance in granular metals, J APPL PHYS, 87(9), 2000, pp. 5179-5181
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
87
Issue
9
Year of publication
2000
Part
2
Pages
5179 - 5181
Database
ISI
SICI code
0021-8979(20000501)87:9<5179:MSAGMI>2.0.ZU;2-3
Abstract
The effect of dipolar interactions on the giant magnetoresistance (GMR) of a granular metal is studied numerically. The equilibrium magnetic configura tion of the system is obtained by classical Monte Carlo simulation and the conductance is calculated using the real space Kubo-Greenwood formula and a single band tight-binding Hamiltonian. The numerical results are compared with experimental finding. (C) 2000 American Institute of Physics. [S0021-8 979(00)72108-6].