Journal article
Magnetic properties of Fe20Ag80 granular films
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 |
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Year: | 1997 |
Pages: | 543-546 |
ISSN: | 09650773 |
Types: | Journal article |