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Weak Anti-localization in thin films of the Topological Semimetal Candidate Pd$_{3}$Bi$_{2}$S$_{2}$

Strongly Correlated Electrons 2020-12-08 v1 Mesoscale and Nanoscale Physics Materials Science

Abstract

We report the growth and magneto-transport studies of Pd3_{3}Bi2_{2}S2_{2} (PBS) thin films synthesized by pulsed laser deposition (PLD) technique. The magneto-transport study on pristine and post annealed films show the presence of more than one type of charge carrier with a carrier concentration in the range 0.60.6 - 2.26 ×2.26~\times 1021^{21} cm3^{-3} and mobility in the range 0.96 - 1.73 ×\times 102^{2} cm2^{2}/Vs. At low temperatures a logarithmic increase in conductivity is observed which indicates the presence of weak anti-localization (WAL). The magnetotransport data is analysed within the Hikami-Larkin-Nagaoka (HLN) theory. It is found that temperature dependence of the dephasing length can't be explained only by electron-electron scattering and that electron-phonon scattering also contributes to the phase relaxation mechanism in PBS films.

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Cite

@article{arxiv.2012.03464,
  title  = {Weak Anti-localization in thin films of the Topological Semimetal Candidate Pd$_{3}$Bi$_{2}$S$_{2}$},
  author = {Shama and Goutam Sheet and Yogesh Singh},
  journal= {arXiv preprint arXiv:2012.03464},
  year   = {2020}
}

Comments

7 pages, 8 figures, 1 Table