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Transient reflection spectra in topological nanocrystals of Bi2Se3, Bi2Te3, Bi2Te2Se

Faizan Ahmad; Rashmi Singh; Rachana Kumar; Mukesh Jewariya; Chandra Shekhar; Naresh Kumar; Pramod Kumar

Volume 8, Issue 4 , April 2017, , Pages 423-427

https://doi.org/10.5185/amlett.2017.6898

Abstract
  The wavelength and time delay dependent reflection spectra of nano crystals Bi2Se3, Bi­2Te3 and Bi­2Te2Se were studied for ultrafast dynamics, using pump and probe spectroscopy. We observed only one transient peak for Bi2Se3 below 600nm, which decreases linearly with time delay. Three transient ...  Read More