Observations of magnetic coupling in Fe-based nanocrystalline alloy by high-temperature giant magneto-impedance effect |
| |
| Institution: | 1. Center for Plant Sciences and Biodiversity, University of Swat, Charbagh Swat, 19120, Pakistan;2. Department of Genetics and Development, Columbia University Irving Medical Centre, New York, NY 10032, United States of America |
| |
| Abstract: | The giant magneto-impedance (GMI) effect for Fe73.5Cu1Nb3Si13.5B9 nanocrystalline ribbons is investigated in the temperature range between room temperature and 873 K. The thermal dependence of GMI effect reveals the enhancement of Curie temperature of the amorphous matrix, reflecting the exchange coupling between the α-FeSi grains as well as the compositional changes of the amorphous matrix itself. However, the dipolar interaction between grains is suggested to be responsible for the non-zero GMI effect after the magnetic phase transition of the amorphous matrix. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
