151 citations · 372 across the 5 of their papers we have counts for
5 papers
Magnetic-order-mediated carrier and phonon dynamics in MnBi2Te4
Liang Cheng, Tian Xiang, Jingbo Qi
We investigate the quasiparticle dynamics in MnBi2Te4 single crystal using the ultrafast optical spectroscopy. Our results show that there exist anomalous dynamical optical respons…
Spintronic Sources of Ultrashort Terahertz Electromagnetic Pulses
Tom S. Seifert, Liang Cheng, Zhengxing Wei +2
Spintronic terahertz emitters are novel, broadband and efficient sources of terahertz radiation, which emerged at the intersection of ultrafast spintronics and terahertz photonics.…
Extremely low-energy collective modes in a quasi-one-dimensional system
Z. X. Wei, S. Zhang, Y. L. Su +5
We have investigated the quasiparticle dynamics and collective excitations in the quasi-one-dimensional material ZrTe using ultrafast optical pump-probe spectroscopy. Our time-…
Ultrafast Spin-To-Charge Conversion at the Surface of Topological Insulator Thin Films
Xinbo Wang, Liang Cheng, Dapeng Zhu +11
Strong spin-orbit coupling, resulting in the formation of spin-momentum-locked surface states, endows topological insulators with superior spin-to-charge conversion characteristics…
Terahertz conductivity of twisted bilayer graphene
Xingquan Zou, Jingzhi Shang, Jianing Leaw +11
Using terahertz time-domain spectroscopy, the real part of optical conductivity [] of twisted bilayer graphene was obtained at different temperatures (10 -- 300 K) in the…