Abstract
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.
Original language | English |
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Journal | Nanostructured Materials |
Volume | 9 |
Pages (from-to) | 543-546 |
ISSN | 0965-0773 |
Publication status | Published - 1997 |