Weak localization in 1T−TiSe2 microflakes

Autor: Daojian Qi, Minjie Zhou, Zhaoguo Li, Jicheng Zhang, Jia Li, Yong Zeng
Rok vydání: 2020
Předmět:
Zdroj: Physical Review B. 101
ISSN: 2469-9969
2469-9950
DOI: 10.1103/physrevb.101.155111
Popis: We have studied the electrical transport in the charge-density wave material $1T\ensuremath{-}\mathrm{TiS}{\mathrm{e}}_{2}$ microflakes. In the low temperatures, the logarithmic temperature-dependent resistivity corrections were observed. In particular, the negative magnetoresistances in low magnetic fields were further measured and well described by the Hikami-Larkin-Nagaoka theory. All the experimental results demonstrate the weak localization effect in the $1T\ensuremath{-}\mathrm{TiS}{\mathrm{e}}_{2}$ microflakes. Furthermore, the power-law dependence of the extracted phase coherence length on temperature is $\ensuremath{\sim}{T}^{\ensuremath{-}0.6}$, indicating the presence of the two-dimensional electron-electron interaction in the $1T\ensuremath{-}\mathrm{TiS}{\mathrm{e}}_{2}$ microflakes.
Databáze: OpenAIRE