81 citations · 464 across the 22 of their papers we have counts for
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Evidence for Topological Band-to-Band Transitions in a Type-II Weyl Semimetal
Seyyedesadaf Pournia, Giriraj Jnawali, Samuel Linser +2
The ternary van der Waals material NbIrTe is a Type-II Weyl semimetal. We use a tunable circularly polarized mid-infrared laser to investigate the existence of band-to-band exc…
Band Structure and Polarization Effects in Photothermoelectric Spectroscopy of a Bi2Se3 Device
Seyyedesadaf Pournia, Giriraj Jnawali, Ryan F. Need +3
Bi2Se3 is a prototypical topological insulator which has a small band gap (~0.3 eV) and topologically protected conducting surface states. This material exhibits quite strong therm…
A Raman Probe of Phonons and Electron-phonon Interactions in NbIrTe4
Iraj Abbasian Shojaei, Seyyedesadaf Pournia, Congcong Le +6
The semimetal NbIrTe4 has been proposed to be a Type-II Weyl semimetal with 8 pairs of opposite Chirality Weyl nodes which are very close to the Fermi energy. This topological elec…
Ultrafast Photoinduced Band Splitting and Carrier Dynamics in Chiral Tellurium Nanosheets
Giriraj Jnawali, Yuan Xiang, Samuel M. Linser +10
Trigonal tellurium (Te) is a chiral semiconductor that lacks both mirror and inversion symmetries, resulting in complex band structures with Weyl crossings and unique spin textures…
Low-Temperature Optical Characterization of Single CdS Nanowires
L. V. Titova, Thang B. Hoang, H. E. Jackson +4
We use spatially resolved micro-PL imaging at low temperature to study optical properties of two sets of CdS nanowires grown using 20 nm and 50 nm catalysts. We find that low tempe…
Temperature dependent photoluminescence of single CdS nanowires
Thang Ba Hoang, L. V. Titova, H. E. Jackson +4
Temperature dependent photoluminescence (PL) is used to study the electronic properties of single CdS nanowires. At low temperatures, both near-band edge (NBE) photoluminescence (P…