This paper reports on an experimental study of influences of the bias direct currents on the transverse giant magnetoimpedance effect in a FeCoNiBSiMo microwire. Along with increasing the bias direct currents, the low field sensitivity of the impedance increases evidently at high frequency (10–120 MHz). The low field sensitivity (4 Oe) by presence of 30 mA of bias direct currents is about 3 times larger than that without using bias direct currents at 60 MHz. However, the high field sensitivity of the impedance decreases by use of bias direct currents at high frequency. In addition, the low field linearity is improved by use of bias direct currents at high frequency. The experimental results could be very useful for the design of multi-dimensional giant magnetoimpedance sensors with high low field sensitivity and linearity.

中文翻译：

---

偏置直流电对软铁磁微导线横向巨磁阻抗效应的实验研究

本文报道了在FeCoNiBSiMo微线中偏置直流电对横向巨型磁阻效应影响的实验研究。随着直流偏置电流的增加，阻抗的低场灵敏度在高频（10–120 MHz）时明显增加。由于存在30 mA的偏置直流电流，其低场灵敏度（4 Oe）大约是不使用60 MHz偏置直流电流时的场灵敏度的3倍。然而，通过使用高频偏置直流电，阻抗的高场灵敏度降低。另外，通过使用高频偏置直流电流可改善低场线性度。实验结果对于设计具有高低场灵敏度和线性度的多维巨型磁阻传感器非常有用。