Yang, HCHCYangLiao, SHSHLiaoHorng, HEHEHorng2010-10-202018-06-282010-10-202018-06-282006-02http://ntur.lib.ntu.edu.tw//handle/246246/217650en-USEnhancement of nuclear magnetic resonance in microtesla magnetic field with prepolarization field detected with high-T-c superconducting quantum interference device