The temperature and magnetic field dependent resistivity was measured for Hg 1 x Cd x Te photoconductive detectors. The density of all kinds of surface electrons was found to keep constant from 1.2K to 55K by the Shubnikov de Haas (SdH) measurements. A three band model, which consists of two kinds of surface electrons and bulk electrons, was proposed to fit the temperature dependent resistivity. The electrical parameters obtained by this model agree well with the experimental data and the results given by SdH measurements.
GUI Yong Sheng ZHENG Guo Zhen ) GUO Shao Ling ) CAI Yi ) CHU Jun Hao ) TANG Ding Yuan ). THE ELECTRICAL PARAMETER ANALYSIS FOR Hg 1 x Cd x Te PHOTOCONDUCTORS[J]. Journal of Infrared and Millimeter Waves,1999,18(4):317~321Copy