Millimetre-long transport of photogenerated carriers in topological insulators
oleh: Yasen Hou, Rui Wang, Rui Xiao, Luke McClintock, Henry Clark Travaglini, John Paulus Francia, Harry Fetsch, Onur Erten, Sergey Y. Savrasov, Baigeng Wang, Antonio Rossi, Inna Vishik, Eli Rotenberg, Dong Yu
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2019-12-01 |
Deskripsi
Exciton condensation may emerge at room temperature in topological materials with strong Coulomb interactions and vanishing electron effective mass. Here, Hou et al. report the formation of excitons in Bi2-x Sb x Se3 nanoribbons, which can transport over hundreds of micrometres before recombination up to 40 K, further implying exciton condensation.