Enhanced granular magnetoresistance due to ferromagnetic layers

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Giant magnetoresistance (GMR) of sequentially evaporated Fe-Ag structures has been investigated. Direct experimental evidence is given, showing that inserting ferromagnetic layers into a granular structure significantly enhances the magnetoresistance. The increase in the GMR effect is attributed to spin polarization effects. The large enhancement (up to more than a fourfold value) and the linear variation of the GMR in low magnetic fields are explained by scattering of the spin polarized conduction electrons on paramagnetic grains.

Original languageEnglish
Pages (from-to)427-429
Number of pages3
JournalSolid State Communications
Volume126
Issue number8
DOIs
Publication statusPublished - May 2003

Fingerprint

Giant magnetoresistance
Magnetoresistance
conduction electrons
Spin polarization
augmentation
polarization
scattering
magnetic fields
Scattering
Magnetic fields
Electrons

Keywords

  • A. Ferromagnetic layers
  • A. Paramagnetic grains
  • D. Magnetoresistence

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Enhanced granular magnetoresistance due to ferromagnetic layers. / Balogh, J.; Csontos, M.; Kaptás, D.; Mihály, G.

In: Solid State Communications, Vol. 126, No. 8, 05.2003, p. 427-429.

Research output: Contribution to journalArticle

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