405 citations · 2.8k across the 23 of their papers we have counts for
4 papers · 1 filter
Time-resolved terahertz dynamics in thin films of the topological insulator BiSe
R. Valdés Aguilar, J. Qi, M. Brahlek +7
We use optical pump--THz probe spectroscopy at low temperatures to study the hot carrier response in thin BiSe films of several thicknesses, allowing us to separate the bul…
Observation of Dirac plasmons in a topological insulator
P. Di Pietro, M. Ortolani, O. Limaj +9
Plasmons are the quantized collective oscillations of electrons in metals and doped semiconductors. The plasmons of ordinary, massive electrons are since a long time basic ingredie…
Topological-Metal to Band-Insulator Transition in (Bi1-xInx)2Se3 Thin Films
Matthew Brahlek, Namrata Bansal, Nikesh Koirala +5
By combining transport and photo emission measurements on (Bi1-xInx)2Se3 thin films, we report that this system transforms from a topologically non-trivial metal into a topological…
Dirac cone shift of a passivated topological Bi2Se3 interface state
Gregory S. Jenkins, Andrei B. Sushkov, Don C. Schmadel +6
Gated terahertz cyclotron resonance measurements on epitaxial Bi2Se3 thin films capped with In2Se3 enable the first spectroscopic characterization of a single topological interface…