426 citations · 2.4k across the 27 of their papers we have counts for
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Surface conduction of topological Dirac electrons in bulk insulating Bi2Se3
Dohun Kim, Sungjae Cho, Nicholas P. Butch +5
The newly-discovered three-dimensional strong topological insulators (STIs) exhibit topologically-protected Dirac surface states. While the STI surface state has been studied spect…
Spatially resolved femtosecond pump-probe study of topological insulator Bi2Se3
Nardeep Kumar, Brian A. Ruzicka, N. P. Butch +4
Carrier and phonon dynamics in Bi2Se3 crystals are studied by a spatially resolved ultrafast pump-probe technique. Pronounced oscillations in differential reflection are observed w…
Strong surface scattering in ultrahigh mobility Bi2Se3 topological insulator crystals
Nicholas P. Butch, Kevin Kirshenbaum, Paul Syers +4
While evidence of a topologically nontrivial surface state has been identified in surface-sensitive measurements of Bi2Se3, a significant experimental concern is that no signatures…