211 research outputs found
Effect of rare earth on the niobium carbide dissolution and precipitation in low-carbon microalloy steels
Electronic and Vibrational Excitations on the Surface of the Three-Dimensional Topological Insulator BiTeSe (x = 0, 2, 3)
We study surface states in the three-dimensional topological insulators
BiTeSe (x = 0, 2, 3) by polarization resolved resonant Raman
spectroscopy. By tracking the spectral intensity of the surface phonon modes
with respect to the incident photon energy, we show that the surface phonons
are qualitatively similar to their bulk counterparts. Using the resonant Raman
excitation profile, we estimated the binding energy of the surface conduction
bands relative to bulk conduction bands. In addition, by analyzing the Fano
interaction between the electronic continuum and the surface phonons as a
function of incident photon energy, we determined the spectral properties of
the electronic continuum excitations between surface and bulk states in
BiSe
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