Conductivity and the Hall effect in Fe/SiO2 granular films

Authors
Aronzon, BA Evstyukhina, IA Kovalev, DY Ryl'kov, VV Sedova, MA
Citation
Ba. Aronzon et al., Conductivity and the Hall effect in Fe/SiO2 granular films, J COMMUN T, 45(1), 2000, pp. 100-105
Citations number
27
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS
ISSN journal
10642269 → ACNP
Volume
45
Issue
1
Year of publication
2000
Pages
100 - 105
Database
ISI
SICI code
1064-2269(200001)45:1<100:CATHEI>2.0.ZU;2-J
Abstract
Conductivity and the Hall effect are investigated in Fe/SiO2 granular films with a size of iron grains of about 40 Angstrom and their volume fraction x ranging from 0.3 to 0.7. The activation mode of conductivity is observed for x < 0.6. The field dependence of the Hall effect in both dielectric and metal samples correlates with their magnetization. The Hall resistivity is found to be proportional to the square root of the longitudinal resistance ; this fact cannot be explained by the known models of the anomalous Hall e ffect (AHE).