Angular dependence of giant magneto impedance and magnetic characteristic of Co-based wire in different magnetic field ranges

作者：Mardani Reza^*; Amirabadizadeh Ahmad; Ghanaatshoar Majid

来源：Modern Physics Letters B, 2014, 28(25): 1450197.

DOI：10.1142/S0217984914501978

• Giant magneto impedance
• angular magnetization curve
• hysteresis loop
• magnetic field sensors

Angular dependence of the giant magneto impedance (GMI), hysteresis loops and magnetization curves have been investigated in amorphous wires with respect to direction and amplitude of the magnetic field in room temperature. The measurements were performed at different orientation angles of the applied magnetic field relative to the wire axis and various magnetic field strengths in moderate (0-200 Oe) and high (0-5000 Oe) ranges. The highest GMI response (500%) and magnetization (100 emu/gr) were found for angles close to the wire axis in high magnetic field range. By increasing the angle from 0 degrees, in moderate external magnetic fields the GMI and magnetization decrease without reaching the saturation. However, in high magnetic fields (similar to 5000 Oe) these parameters are nearly constant and almost saturated for all angles. In both magnetic field ranges, increasing the angle of applied field widens the impedance curves.

• 出版日期2014-9-30