68 citations · 262 across the 9 of their papers we have counts for
9 papers
Pressure-induced reentrant superconductivity in a misfit layered compound
Chutong Zhang, Jiajia Feng, Xiao Tang +10
Misfit layered compounds are natural van der Waals heterostructures in which electronically active transition-metal dichalcogenide layers are decoupled by incommensurate blocking l…
Sodium layer chiral distribution and spin structure of NaNiTeO with a honeycomb network
Sunil K. Karna, Y. Zhao, R. Sankar +7
The nature of Na ion distribution, diffusion path, and the spin structure of -type NaNiTeO with a Ni honeycomb network has been explored. The nuclear density distri…
Optical phonon dynamics and electronic fluctuations in the Dirac semimetal Cd3As2
A. Sharafeev, V. Gnezdilov, R. Sankar +2
Raman scattering in the three-dimensional Dirac semimetal Cd3As2 shows an intricate interplay of electronic and phonon degrees of freedom. We observe resonant phonon scattering due…
Observation of Fermi Arc Surface States in a Topological Metal: A New Type of 2D Electron Gas beyond Z2 Topological Insulators
Su-Yang Xu, Chang Liu, Satya K. Kushwaha +15
In a topological insulator, it is the electrons on the surface or edge that carry the signature of topology. Recently, a novel topological state has been proposed in metals or semi…
Connecting electron and phonon spectroscopy data to consistently determine quasiparticle-phonon coupling on the surface of topological insulators
Colin Howard, M. El-Batanouny
Photoemission and phonon spectroscopies have yielded widely varying estimates of the electron-phonon coupling constant λ on the surfaces of topological insulators, even for a parti…
Magneto-transport in copper-doped noncentrosymmetric BiTeI
Chang-Ran Wang, Jen-Chuan Tung, S. Sankar +5
BiTeI exhibits large Rashba spin splitting due to its noncentrosymmetric crystal structure. The study of chemical doping effect is important in order to either tune the Fermi level…
Anomalous behavior in the phonon dispersion of the (001) surface of BiTe determined from helium atom-surface scattering measurements
Colin Howard, M. El-Batanouny, R. Sankar +1
We employ inelastic helium atom-surface scattering to measure the low energy phonon dispersion along high-symmetry directions on the surface of the topological insulator BiTe$_…
Enhanced quasiparticle dynamics of quantum well states: the giant Rashba system BiTeI and topological insulators
V. Gnezdilov, P. Lemmens, D. Wulferding +5
In the giant Rashba semiconductor BiTeI electronic surface scattering with Lorentzian linewidth is observed that shows a strong dependence on surface termination and surface potent…
Nonstoichiometric doping and Bi antisite defect in single crystal Bi2Se3
F. -T. Huang, M. -W. Chu, H. H. Kung +6
We studied the defects of Bi2Se3 generated from Bridgman growth of stoichiometric and nonstoichiometric self-fluxes. Growth habit, lattice size, and transport properties are strong…