Magnetic properties of Fe20Ag80 granular films

Jianzhong Jiang, Steen Mørup, T. Jonsson, C. Djurberg, P. Svedlindh, S.Y. Zhang, Y.W. Du

Research output: Contribution to journalJournal articleResearchpeer-review


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 languageEnglish
JournalNanostructured Materials
Pages (from-to)543-546
Publication statusPublished - 1997

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