We present ultrafast terahertz scattering dynamics in topological insulator Bi2Se3 thin films. Upon photoexcitation, the surface-scattering rate is increased, resulting in decrease of conductance. At high temperature, however, the photo-generated electrons suppress the surfacescattering.
|Publication status||Published - 2014|
|Event||2014 Conference on Lasers and Electro-Optics, CLEO 2014 - San Jose, United States|
Duration: 2014 Jun 8 → 2014 Jun 13
|Other||2014 Conference on Lasers and Electro-Optics, CLEO 2014|
|Period||14/6/8 → 14/6/13|
Bibliographical notePublisher Copyright:
© 2014 Optical Society of America.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Atomic and Molecular Physics, and Optics
- Electronic, Optical and Magnetic Materials