GIANT NEGATIVE MAGNETORESISTANCE IN A COMPOSITE SYSTEM BASED ON FE3O4NANOCRYSTALS IN A POLYMER MATRIX

Authors
VARFOLOMEEV AE GODOVSKII DY KAPUSTIN GA VOLKOV AV MOSKVINA MA
Citation
Ae. Varfolomeev et al., GIANT NEGATIVE MAGNETORESISTANCE IN A COMPOSITE SYSTEM BASED ON FE3O4NANOCRYSTALS IN A POLYMER MATRIX, JETP letters, 67(1), 1998, pp. 39-42
Citations number
10
Categorie Soggetti
Physics
Journal title
JETP letters → ACNP
ISSN journal
00213640
Volume
67
Issue
1
Year of publication
1998
Pages
39 - 42
Database
ISI
SICI code
0021-3640(1998)67:1<39:GNMIAC>2.0.ZU;2-P
Abstract
Conducting polymer composites based on Fe3O4 nanocrystals in a polyvin yl alcohol matrix are synthesized. The current-voltage characteristics , the magnetization, and the magnetoresistance of the nanocomposites a re investigated, and a giant negative magnetoresistance is observed. T he decrease in the resistance at room temperature is found to reach 10 % in a 10 kOe held. (C) 1998 American Institute of Physics. [S0021-364 0(98)00701-4].