Giant Hall effect in Co-SiO2 nanocomposites

J. C. Denardin*, A. B. Pakhomov, M. Knobel, H. Liu, X. X. Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

Measurements of both the ordinary and extraordinary components of the Hall effect in co-sputtered granular magnetic Co-SiO2 nanocomposites are presented. The experiments were done in the temperature range 5-300 K, and fields up to 7 T. Both components show a large enhancement when the metal volume fraction is reduced to the metal-insulator transition. However the enhancement of the ordinary Hall effect is much weaker than that of the extraordinary one. We discuss the implications of this observation for understanding of the giant Hall effect.

Original languageEnglish (US)
Pages (from-to)3397-3399
Number of pages3
JournalJournal of Physics Condensed Matter
Volume12
Issue number14
DOIs
StatePublished - Apr 10 2000
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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