Phase coherence and energy relaxation in epitaxial graphene under microwave radiation
Journal article, 2013
We have performed low-temperature magnetotransport measurements on monolayer epitaxial graphene under microwave radiation and extracted the radiation-induced effective temperatures, energy relaxation, and the dephasing times. We established that the response of the graphene sample is entirely bolometric at least up to 170 GHz. Dynamic dephasing, i.e., the time-reversal symmetry breaking effect of the ac electromagnetic field rather than mediated by heating, may become significant in the terahertz frequency range and in samples with longer phase coherence time.
thermal-properties
Author
V. Eless
Royal Holloway University of London
National Physical Laboratory
Thomas Yager
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
S. Spasov
Royal Holloway University of London
Samuel Lara Avila
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
R. Yakimova
Graphensic AB
Linkopings universitet
Sergey Kubatkin
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Tjbm Janssen
National Physical Laboratory
A.Y. Tzalenchuk
Royal Holloway University of London
National Physical Laboratory
V. Antonov
Royal Holloway University of London
Applied Physics Letters
0003-6951 (ISSN) 1077-3118 (eISSN)
Vol. 103 9 art. no. 093103- 093103Subject Categories (SSIF 2011)
Nano Technology
DOI
10.1063/1.4819726