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Journal article

Magnetic properties of Fe20Ag80 granular films

From

Department of Physics, Technical University of Denmark1

Uppsala University2

Nanjing University3

Fe20Ag80 granular films prepared by ion-beam cosputtering have been investigated by Mossbauer spectrocopy and dc susceptibility measurements. The as-sputtered Fe20Ag80 films consist of small magnetic particles embedded in the Ag matrix. The system is in a superparamagnetic state at temperatures above 30 K.

Below 30 K, the films begins to show slow magnetic relaxation and by further lowering the temperature, a super-spin-glass phase is formed around 20 K.

Language: English
Year: 1997
Pages: 543-546
ISSN: 09650773
Types: Journal article

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