TY  - CONF
ID  - SisLab2860
UR  - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2860/
A1  - Bui, Dinh Tu
A1  - Pham, Duc Thang
A1  - Le, Khac Quynh
A1  - Le, Viet Cuong
A1  - Do, Thi Huong Giang
A1  - Nguyen, Huu Duc
Y1  - 2017/10//
N2  - The sensitivity magnetic sensors have become essential for applications in many fields such as biomedicine, computer memories, geophysics and etc. It is known that the sensitivity of magnetic anisotropy sensor depends on current density as well as the rotation of the magnetic moments corresponded to the external magnetic field. In this study, we fabricated and investigated a number of different configurations of resistor bar in the Wheatone bridge sensor. The samples were made in magnetic field pins with varying intensity from 0 to 900 Oe. Furthermore, different shapes of resistor, as in circle, rectangle, ellipse, were fabricated with the film thickness of 15 nm. The analyzed results indicated that the rotation of the magnetic moments occurs rapidly and sharp in the small magnetic field (0 - 3 Oe) with samples fabricated in the high magnetic field pinned. The strong magnetic anisotropy was also observed in the rectangular configuration. In addition, the sensors have been optimized for measuring small magnetic field.
TI  - Enhancement of the sensitivity of magnetic field sensor based on anisotropic magetoresistance effect in NiFe thin films
M2  - German
AV  - public
T2  - FSM 2017
ER  -