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Ultrafast photoinduced terahertz dynamics of topological insulator (Bi1-xInx)2Se3

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Abstract

We present ultrafast terahertz dynamics in topological insulator (Bi1-xInx)2Se3. We find that photogenerated electrons suppress the increase of scattering at high temperature. The surface-bulk interaction strongly depends on the dynamic condition of topological phase transition.

© 2014 Optical Society of America

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