216 citations · 768 across the 16 of their papers we have counts for
16 papers
Chirality manipulation of ultrafast phase switchings in a correlated CDW-Weyl semimetal
Bing Cheng, Di Cheng, Tao Jiang +8
A recently emerging concept for quantum phase discovery is the controlled gapping of linear band crossings in topological semimetals. For example, achieving topological superconduc…
Ab-initio Simulations of Coherent Phonon-Induced Pumping of Carriers in Zirconium Pentatelluride
Tao Jiang, Peter P. Orth, Liang Luo +7
Laser-driven coherent phonons can act as modulated strain fields and modify the adiabatic ground state topology of quantum materials. Here we use time-dependent first-principles an…
Cryogenic Magneto-Terahertz Scanning Near-field Optical Microscope (cm-SNOM)
Richard H. J. Kim, Joong-Mok Park, Samuel J. Haeuser +2
We have developed a versatile near-field microscopy platform that can operate at high magnetic fields and below liquid-helium temperatures. We use this platform to demonstrate an e…
Ultrafast generation and detection of propagating coherent acoustic phonon wave packets in ultra-thin iron pnictide films
D. Cheng, B. Song, J. H. Kang +9
We observe pronounced oscillations in differential reflectivity of 9 nm and 60 nm BaFe\textsubscript{2}As\textsubscript{2} (Ba-122) thin films using ultrafast optical spectroscopy.…
Local atomic configuration control of superconductivity in the undoped pnictide parent compound BaFe2As2
Jong-Hoon Kang, Philip J. Ryan, Jong-Woo Kim +13
Emergent superconductivity is strongly correlated with the symmetry of local atomic configuration in the parent compounds of iron-based superconductors. While chemical doping or hy…
Wavelength conversion through plasmon-coupled surface states
Deniz Turan, Ping Keng Lu, Nezih T. Yardimci +7
Surface states generally degrade semiconductor device performance by raising the charge injection barrier height, introducing localized trap states, inducing surface leakage curren…