Development of a high-resolution AC susceptometer for materials magnetic property investigation

The AC magnetic susceptibility is an important probe for characterizing magnetic properties of many materials. In this effort, an innovative high-resolution AC susceptometer is constructed. It provides us a capability to conduct state-of-the art experiments in AC magnetometry for important physics such as that of colossal magnetoresistance, superconductivity, charge/spin density wave and phase transitions occurring in novel condensed matter materials, and satisfies the needs of students' research training and education in experimental sciences.