A simple ac bridge for detecting small resistance change.
A simple ac resistance bridge is proposed. The stability of the design is better than 10(-6), which is especially suitable for detecting tiny changes of resistance. An example of magnetoresistance measurement for a 220 nm Au film shows the good performance of the bridge.
Song
Xiaohui
X
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China. xhsong@aphy.iphy.ac.cn
Jin
Yirong
Y
Zhang
Xin
X
Yu
Yude
Y
Zhang
Dian-lin
DL