Studies of remnant magnetoresistance in granular AuCo films

N. Peleg; G. Gorodetsky

doi:10.1016/S0304-8853(98)00304-7

Studies of remnant magnetoresistance in granular AuCo films

N. Peleg
, G. Gorodetsky

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The observation of remanence effects in the magnetoresistance of a granular Au_0.82Co_0.18 film is reported. The results obtained, at low temperatures and low magnetic fields, are analyzed on the basis of a simple model for remnant giant magnetoresistance. The comparison with similarly measured magnetization remanence, shows that mainly the small ferromagnetic Co particles, of volume V < 4.5 nm³, account for the giant magnetoresistance (GMR). The novel approach applied here for analyzing the dominant particles size in GMR, could be used for other granular magnetic materials as well.

Original language	English
Pages (from-to)	354-358
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	191
Issue number	3
DOIs	https://doi.org/10.1016/S0304-8853(98)00304-7
State	Published - 1 Jan 1999

Keywords

Fine particles
Giant magnetoresistance
Superparamagnetism
Thin films

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/S0304-8853(98)00304-7

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title = "Studies of remnant magnetoresistance in granular AuCo films",

abstract = "The observation of remanence effects in the magnetoresistance of a granular Au0.82Co0.18 film is reported. The results obtained, at low temperatures and low magnetic fields, are analyzed on the basis of a simple model for remnant giant magnetoresistance. The comparison with similarly measured magnetization remanence, shows that mainly the small ferromagnetic Co particles, of volume V < 4.5 nm3, account for the giant magnetoresistance (GMR). The novel approach applied here for analyzing the dominant particles size in GMR, could be used for other granular magnetic materials as well.",

keywords = "Fine particles, Giant magnetoresistance, Superparamagnetism, Thin films",

author = "N. Peleg and G. Gorodetsky",

year = "1999",

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language = "English",

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T1 - Studies of remnant magnetoresistance in granular AuCo films

AU - Peleg, N.

AU - Gorodetsky, G.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The observation of remanence effects in the magnetoresistance of a granular Au0.82Co0.18 film is reported. The results obtained, at low temperatures and low magnetic fields, are analyzed on the basis of a simple model for remnant giant magnetoresistance. The comparison with similarly measured magnetization remanence, shows that mainly the small ferromagnetic Co particles, of volume V < 4.5 nm3, account for the giant magnetoresistance (GMR). The novel approach applied here for analyzing the dominant particles size in GMR, could be used for other granular magnetic materials as well.

AB - The observation of remanence effects in the magnetoresistance of a granular Au0.82Co0.18 film is reported. The results obtained, at low temperatures and low magnetic fields, are analyzed on the basis of a simple model for remnant giant magnetoresistance. The comparison with similarly measured magnetization remanence, shows that mainly the small ferromagnetic Co particles, of volume V < 4.5 nm3, account for the giant magnetoresistance (GMR). The novel approach applied here for analyzing the dominant particles size in GMR, could be used for other granular magnetic materials as well.

KW - Fine particles

KW - Giant magnetoresistance

KW - Superparamagnetism

KW - Thin films

UR - https://www.scopus.com/pages/publications/0033513791

U2 - 10.1016/S0304-8853(98)00304-7

DO - 10.1016/S0304-8853(98)00304-7

M3 - Article

AN - SCOPUS:0033513791

SN - 0304-8853

VL - 191

SP - 354

EP - 358

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 3

ER -

Studies of remnant magnetoresistance in granular AuCo films

Abstract

Keywords

ASJC Scopus subject areas

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