292 citations · 478 across the 3 of their papers we have counts for
3 papers
cond-mat.mes-hall2017★ 26 cited
Faraday rotation due to surface states in the topological insulator (BiSb)Te
Yinming Shao, Kirk W. Post, Jhih-Sheng Wu +9
Using magneto-infrared spectroscopy, we have explored the charge dynamics of (Bi,Sb)Te thin films on InP substrates. From the magneto-transmission data we extracted three d…
cond-mat.mes-hall2014★ 292 cited
Trion induced negative photoconductivity in monolayer MoS2
C. H. Lui, A. J. Frenzel, D. V. Pilon +5
Optical excitation typically enhances electrical conduction and low-frequency radiation absorption in semiconductors. We have, however, observed a pronounced transient decrease of…
cond-mat.mes-hall2014★ 160 cited
Semiconducting-to-metallic photoconductivity crossover and temperature-dependent Drude weight in graphene
A. J. Frenzel, C. H. Lui, Y. C. Shin +2
We investigated the transient photoconductivity of graphene at various gate-tuned carrier densities by optical-pump terahertz-probe spectroscopy. We demonstrated that graphene exhi…