The magnetic hysteresis properties of granular Cu100-xCox alloys (x = 5 to 20) containing nanometric Co particles, prepared under different quenching conditions and submitted to various anneals, have been measured at room temperature. Major loops (vertex field 1 x 104 Oe) and minor loops (vertex field between 1 x 102 and 9 x 103 Oe) were measured by vibrating-sample magnetometry. The features of major loops were analysed in terms of sample composition and structural state; the dependence of remanence and coercivity of minor loops on vertex field has been analysed in detail. A novel graphical representation method, particularly suitable for describing the details of the narrow hysteresis loops observed in granular systems has been proposed and checked.

Hysteretic magnetisation curves in the granular Cu100-x.Cox system / Allia, PAOLO MARIA EUGENIO ICILIO; M., Coisson; P., Tiberto; F., Vinai. - In: NANOSTRUCTURED MATERIALS. - ISSN 0965-9773. - 11:6(1999), pp. 757-767. [10.1016/S0965-9773(99)00364-5]

Hysteretic magnetisation curves in the granular Cu100-x.Cox system

ALLIA, PAOLO MARIA EUGENIO ICILIO;
1999

Abstract

The magnetic hysteresis properties of granular Cu100-xCox alloys (x = 5 to 20) containing nanometric Co particles, prepared under different quenching conditions and submitted to various anneals, have been measured at room temperature. Major loops (vertex field 1 x 104 Oe) and minor loops (vertex field between 1 x 102 and 9 x 103 Oe) were measured by vibrating-sample magnetometry. The features of major loops were analysed in terms of sample composition and structural state; the dependence of remanence and coercivity of minor loops on vertex field has been analysed in detail. A novel graphical representation method, particularly suitable for describing the details of the narrow hysteresis loops observed in granular systems has been proposed and checked.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1401697
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