Research of carrier mobility in NPD through negative differential susceptance spectraHui Xu, Chao Tang, Wen-Juan Zhai, Rui-Lan Liu, Zhou Rong, Qu-Li Fan and Wei HuangEur. Phys. J. Appl. Phys., 68 3 (2014) 30202DOI: https://doi.org/10.1051/epjap/2014140298