Ultrafast hot carrier dynamics of ZrTe$_5$ from time-resolved optical reflectivity

Xiu Zhang; Hai-Ying Song; X. C. Nie; Shi-Bing Liu; Yang Wang; Cong-Ying Jiang; Shi-Zhong Zhao; Genfu Chen; Jian-Qiao Meng; Yu-Xia Duan; H. Y. Liu

doi:10.1103/PhysRevB.99.125141

Ultrafast hot carrier dynamics of ZrTe$_5$ from time-resolved optical reflectivity

Strongly Correlated Electrons 2019-04-03 v1 Mesoscale and Nanoscale Physics

Authors: Xiu Zhang , Hai-Ying Song , X. C. Nie , Shi-Bing Liu , Yang Wang , Cong-Ying Jiang , Shi-Zhong Zhao , Genfu Chen , Jian-Qiao Meng , Yu-Xia Duan , H. Y. Liu

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Abstract

We investigate the hot carrier dynamics of ZrTe $_5$ by ultrafast time-resolved optical reflectivity. Our results reveal a phonon-mediated across-gap recombination, consistent with its temperature-dependent gap nature as observed previously by photoemission. In addition, two distinct relaxations with a kink feature right after initial photoexcitation are well resolved, suggesting the complexity of electron thermalization process. Our findings indicate that correlated many-body effects play important role for the transient dynamics of ZrTe $_5$ .

Keywords

hot carrier dynamics zrte5 time-resolved reflectivity phonon-mediated recombination electron thermalization many-body effects

Cite

@article{arxiv.1810.10747,
  title  = {Ultrafast hot carrier dynamics of ZrTe$_5$ from time-resolved optical reflectivity},
  author = {Xiu Zhang and Hai-Ying Song and X. C. Nie and Shi-Bing Liu and Yang Wang and Cong-Ying Jiang and Shi-Zhong Zhao and Genfu Chen and Jian-Qiao Meng and Yu-Xia Duan and H. Y. Liu},
  journal= {arXiv preprint arXiv:1810.10747},
  year   = {2019}
}

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5 pages, 4 figures

Ultrafast hot carrier dynamics of ZrTe$_5$ from time-resolved optical reflectivity

Abstract

Keywords

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