Observation of antiphase coherent phonons in the warped Dirac cone of Bi$_2$Te$_3$

11 Oct 2016 Golias E. Sánchez-Barriga J.

In this Rapid Communication we investigate the coupling between excited electrons and phonons in the highly anisotropic electronic structure of the prototypical topological insulator Bi$_2$Te$_3$. Using time- and angle-resolved photoemission spectroscopy we are able to identify the emergence and ultrafast temporal evolution of the longitudinal-optical A$_{1g}$ coherent-phonon mode in Bi$_2$Te$_3$... (read more)

PDF Abstract
No code implementations yet. Submit your code now

Categories


  • MESOSCALE AND NANOSCALE PHYSICS