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Phase coherence and energy relaxation in epitaxial graphene under microwave radiation
National Phys Lab, England.
Chalmers, Sweden.
University of London, England.
Chalmers, Sweden.
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2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 103, no 9Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2013. Vol. 103, no 9
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-98225DOI: 10.1063/1.4819726ISI: 000323846900045OAI: diva2:653211

Funding Agencies|Swedish Research Council||Foundation for Strategic Research||EPSRC|EP/K016822/1|EU FP7 STREP ConceptGraphene||

Available from: 2013-10-03 Created: 2013-10-03 Last updated: 2013-10-08

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Yakimova, Rositsa
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