Magnons in ultrahigh vacuum deposited Fe/Ag multilayers

Magnons in ultrahigh vacuum deposited Fe/Ag multilayers

We have grown Fe/Ag multilayers with Ag buffer layer, by evaporation under UHV conditions on glass substrates. The magnetic properties of Fe/Ag multilayers are examined as a function of Fe layer thickness t Fe. The temperature dependence of the spontaneous magnetization M( T) is well described by a...

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Veröffentlicht in:Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2007-02, Vol.137 (1), p.170-174
Hauptverfasser: El Kiadi, I., Lassri, H., Benkirane, K., Bensassi, B.
Format: Artikel
Sprache:eng
Schlagworte:
Anisotropy
Exchange interaction
Fe/Ag multilayers
Magnetization
Spin-wave excitations
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Zusammenfassung:We have grown Fe/Ag multilayers with Ag buffer layer, by evaporation under UHV conditions on glass substrates. The magnetic properties of Fe/Ag multilayers are examined as a function of Fe layer thickness t Fe. The temperature dependence of the spontaneous magnetization M( T) is well described by a T 3/2 law in all multilayers. A spin-wave theory has been used to explain the temperature dependence of the magnetization and the approximate values for the bulk exchange interaction J b and surface exchange interaction J s for various Fe layer thicknesses have been obtained.
ISSN:0921-5107
1873-4944
DOI:10.1016/j.mseb.2006.11.021