论文标题
PDTE2单晶的结构和磁转运特性的研究
Investigation of structural and magneto-transport properties of PdTe2 single crystals
论文作者
论文摘要
在本研究中进行了拓扑半学（TSM）PDTE2的生长和结构分析。采用自流量方法来生长由XRD，SEM和EDAX在结构上表征的单晶，而通过拉曼光谱观察到振动模式。此外，还研究了生长晶体的转运特性，这表明存在弱的抗本地化作用。通过Hikami-Larkin-Nagaoka（HLN）模型研究了低场（1TESLA）磁性电导率，并提取物理参数。此外，在HLN模型中添加了二次项和一个线性项，该模型在传导机制中的量子和经典贡献所解释。修饰的HLN模型用于研究整个田间范围内的磁性传导性，并在2-100 K的温度下研究。本研究不仅证实了单晶PDTE2的生长，而且还通过HLN分析了磁通轨道测量值的HLN分析。
The growth and structural analysis of topological semimetal (TSM) PdTe2 were carried out in this study. The self-flux method was employed to grow the single crystals which were structurally characterized by XRD, SEM and EDAX, while the vibrational modes were observed by Raman spectroscopy. Further, the transport properties of the grown crystal are also investigated, which show the presence of the weak anti-localization effect. The low field (1Tesla) magnetoconductivity is studied by Hikami-Larkin-Nagaoka (HLN) model, and the physical parameters are extracted. Further, a quadratic term and a linear term in applied field were added in HLN model, which are accounted for quantum and classical contributions in conduction mechanism. The modified HLN model was used to study magneto-conductivity in entire field range and at temperature from 2-100 K. This study not only confirmed the growth of single crystal PdTe2, but also verified the presence of topological surface states (TSS) through the HLN analysis of magneto-transport measurements.
