利用液相外延法制备了Hg0.77Cd0.23Te薄膜样品,在对样品的低温磁输运测试中观察到反局域效应,说明样品中存在较强的自旋-轨道耦合.通过Hikami-Larkin-Nagaoka(HLN)局域模型加上Drude电导模型拟合磁电导曲线,得到了电子的退相干时间和自旋-轨道散射时间.研究结果表明,电子的退相规律符合Nyquist退相机制. The Hg0.77Cd0.23Te thin film samples were prepared by liquid-phase epitaxy, and the anti-local effect was observed in the low-temperature magnetic transport test of the sample, indicating that strong spin-orbit coupling exists in the sample. The Hikami-Larkin- The Nagaoka (HLN) local model and the Drude conductance model are fitted to the magneto-conductance curve to obtain the electron decoherence time and the spin-orbit scattering time.The results show that the electron decoherence conforms to the Nyquist decoy mechanism.