We have studied the thermal stability of L10 FePt thin films and Fe–FePt exchange-spring (ES) bilayers grown on (1 0 0) MgO by RF sputtering. The viscosity curves showed both for FePt films and bilayers a clear logarithmic decay of magnetization. Moreover, it was possible to evaluate the viscosity coefficient S for different applied reverse fields and the activation volumes at the coercivity. The latter values were then related to structural, magnetic and morphological measurements performed on the samples.

Magnetic Viscosity Effects In Epitaxial L10 FePt Thin Films And Exchange Spring Fe-FePt Bilayers / Pernechele, Chiara; Ghidini, Massimo; Solzi, Massimo; R., Pellicelli; F., Albertini; F., Casoli. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 316:(2007), pp. e162-e165. [10.1016/j.jmmm.2007.02.077]

Magnetic Viscosity Effects In Epitaxial L10 FePt Thin Films And Exchange Spring Fe-FePt Bilayers

PERNECHELE, Chiara;GHIDINI, Massimo;SOLZI, Massimo;
2007-01-01

Abstract

We have studied the thermal stability of L10 FePt thin films and Fe–FePt exchange-spring (ES) bilayers grown on (1 0 0) MgO by RF sputtering. The viscosity curves showed both for FePt films and bilayers a clear logarithmic decay of magnetization. Moreover, it was possible to evaluate the viscosity coefficient S for different applied reverse fields and the activation volumes at the coercivity. The latter values were then related to structural, magnetic and morphological measurements performed on the samples.
2007
Magnetic Viscosity Effects In Epitaxial L10 FePt Thin Films And Exchange Spring Fe-FePt Bilayers / Pernechele, Chiara; Ghidini, Massimo; Solzi, Massimo; R., Pellicelli; F., Albertini; F., Casoli. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 316:(2007), pp. e162-e165. [10.1016/j.jmmm.2007.02.077]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/1654304
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