title: A simple ac bridge for detecting small resistance change.
abstract: 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.
authors.affiliation: 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
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Song
authors.forename: Yirong
authors.initials: Y
authors.lastname: Jin
authors.forename: Xin
authors.initials: X
authors.lastname: Zhang
authors.forename: Yude
authors.initials: Y
authors.lastname: Yu
authors.forename: Dian-lin
authors.initials: DL
authors.lastname: Zhang