The temperature dependence of the initial AC-susceptibility of melt-spun Nd60Fe30Al10 ribbons shows an anomaly, which depends strongly on the heat treatment and the superposing DC-field, The anomaly is suppressed by DC-field. Additionally, the position and the amplitude of the anomaly are frequency dependent. However, the time dependence of the AC-susceptibility is observable for temperatures above 100 K. The Analysis of the susceptibility (measured with and without superposing DC-field) as function of the time at different temperatures using the Arrhenius law was performed.
|Number of pages||6|
|Journal||Journal of Optoelectronics and Advanced Materials|
|Publication status||Published - Jun 2004|
- AC- susceptibility
- Amorphous Nd-Fe-Al alloys
- Magnetic after-effect