论文标题
BI2TE3单晶的高场磁电导性的全面分析
Comprehensive Analysis for the High Field Magneto-conductivity of Bi2Te3 Single Crystal
论文作者
论文摘要
在这里，我们报告了对BI2TE3单晶的磁导率（最高为14tesla和5K）分析。由于弱抗钙化效应（WAL）效应，观察到近H = 0的急剧磁电导（MC）上升（MC）上升（倒V型尖），而在较高场上观察到线性曲线。在经过改进的HLN建模（添加二次和经典成分的添加（BH2）中，通过量子和经典成分的添加添加二次（BH2），我们在14TESLA的整个磁场中考虑了磁性调节性（MC）。温度从5个相干长度LPHI升高到常规模型和温度的增加，但与电子的平均自由路径（L）相比，它显示出量子相干效应在高温下占据。
Here, we report the magneto-conductivity (up to 14Tesla and down to 5K) analysis of Bi2Te3 single-crystal. A sharp magneto-conductivity (MC) rise (inverted v-type cusp) is observed near H=0 due to the weak antilocalization (WAL) effect, while a linear curve is observed at higher fields. We account for magneto-conductivity (MC) over the entire range of applied magnetic fields of up to 14Tesla and temperatures from 100K to 5K in a modified HLN modelling (addition of quadratic (BH2) through quantum and classical components involvement. The additional term BH2 reveals a gradual change of a (HLN parameter) from -0.421(6) to -0.216(1) as the temperature increases from 5 to 100K. The phase coherence length Lphi obtained from both conventional and modified modelling decreased with increasing temperature but remains more protracted than the mean free path (L) of electrons. It shows the quantum phase coherence effect dominates at high temperature.
