Longitudinally driven giant magnetoimpedance effect in stress-annealed Fe-based nanocrystalline ribbons

Autor: D. P. Yang, F. F. Gong, Xiaolong Yang, S. M. Qian, George Chen, Lang Zeng, Jing Yang, Z. C. Wang
Rok vydání: 2000
Předmět:
Zdroj: Journal of Applied Physics. 87:4819-4821
ISSN: 1089-7550
0021-8979
Popis: A high-frequency longitudinally driven giant magnetoimpedance (GMI) effect has been measured in stress-annealed Fe73Cu1Nb1.5V2Si13.5B9 nanocrystalline ribbons. Based on how the impedance phase varies with the external magnetic field, it becomes clear that the imaginary part of the complex permeability, μ″, which is related to magnetic losses, plays an important role in the high-frequency longitudinally driven GMI effect. The transverse anisotropy field Hk can be readily determined by a sharp minimum in the curve of the impedance phase as a function of the external magnetic field. This provides a new method for measuring the magnetic anisotropy field in such systems.
Databáze: OpenAIRE