Title :
Effect of tensile stresses on GMI of Co-rich amorphous microwires
Author :
Garcia, C. ; Zhukov, A. ; Blanco, J.M. ; Zhukova, V. ; Ipatov, M. ; Gonzalez, J.
Author_Institution :
Dept. de Fisica Aplicada, UPV/EHU, San Sebastian, Spain
Abstract :
Co67Fe3.85Ni1.45B11.5Si14.5Mo1.7 glass-coated amorphous microwires were prepared by Taylor-Ulitovski method under applied tensile stress and its effects on the giant magneto-impedance (GMI) were studied. The impedance was evaluated using an impedance analyzer at frequency of 10 MHz and network analyzer at frequency range between 10 MHz-3 GHz. It can be concluded that the changes of the GMI ratio ΔZ/Z(H) resulted in a shift of the magnetic field Hm for maximum ΔZ/Z and decrease of (ΔZ/Z)m with tensile stress. The magnetostriction constant and its evolution with stress was also estimated from these measurements.
Keywords :
amorphous magnetic materials; boron compounds; cobalt compounds; ferromagnetic materials; giant magnetoresistance; iron compounds; magnetostriction; nickel compounds; stress effects; 10 MHz to 3 GHz; Co-rich amorphous microwires; Co67Fe3.85Ni1.45B11.5Si14.5Mo1.7; GMI ratio; Taylor-Ulitovski method; giant magnetoimpedance; glass-coated amorphous microwires; impedance analyzer; magnetic field shifting; magnetostriction constant; network analyzer; tensile stress effects; Amorphous magnetic materials; Amorphous materials; Frequency; Impedance; Iron; Magnetic analysis; Magnetic field measurement; Magnetostriction; Stress measurement; Tensile stress;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464066
