STUDIES OF MAGNETORESISTANCE AND HALL-EFFECT IN INSULATING FE SIO2 GRANULAR FILMS/

Authors
ARONZON BA LIKALTER AA RYLKOV VV SARYCHEV AK SEDOVA MA VARFOLOMEEV AE
Citation
Ba. Aronzon et al., STUDIES OF MAGNETORESISTANCE AND HALL-EFFECT IN INSULATING FE SIO2 GRANULAR FILMS/, Physica status solidi. b, Basic research, 205(1), 1998, pp. 151-155
Citations number
11
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. b, Basic research → ACNP
ISSN journal
03701972
Volume
205
Issue
1
Year of publication
1998
Pages
151 - 155
Database
ISI
SICI code
0370-1972(1998)205:1<151:SOMAHI>2.0.ZU;2-3
Abstract
The Hall effect and magnetoresistance in Fe/SiO2 granular metals have been studied below;he metal-insulator transition in the regime of hopp ing conductivity. The Hall resistivity rises with decreasing Fe fracti on and its value is much higher than that expected. The magnetoresista nce is negative in close vicinity of the transition point and is posit ive far away from it. The even voltage between Hall probes reflects ti le reconstruction of percolation cluster showing the absence of self-a veraging.