Single-mode and multimode Fabry-Perot interference in suspended graphene
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© 2014 American Physical Society (APS). This is the accepted version of the following article: Oksanen, Mika & Uppstu, Andreas & Laitinen, Antti & Cox, Daniel J. & Craciun, Monica F. & Russo, Saverio & Harju, Ari & Hakonen, Pertti J. 2014. Single-mode and multimode Fabry-Perot interference in suspended graphene. Physical Review B. Volume 89, Issue 12. 121414/1-5. ISSN 1550-235X (electronic). ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.89.121414, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.121414.
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2014
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Mcode
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Language
en
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121414/1-5
Series
Physical Review B, Volume 89, Issue 12
Abstract
We have achieved high-quality Fabry-Pérot interference in a suspended graphene device both in conductance and in shot noise. A Fourier analysis of these reveals two sets of overlapping, coexisting interference patterns, with the ratios of the resonance intervals being equal to the width to length ratio of the device. We show that these sets originate from the unique coexistence of longitudinal and transverse resonances, with the longitudinal resonances occurring due to bunching of modes with low transverse momentum. Finally, the high quality of our samples allows us to probe the interaction renormalization of the Fermi velocity as well as the coexistence of Fabry-Pérot oscillations with universal conductance fluctuations.Description
Keywords
conductance fluctuations, transport, phase
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Citation
Oksanen, Mika & Uppstu, Andreas & Laitinen, Antti & Cox, Daniel J. & Craciun, Monica F. & Russo, Saverio & Harju, Ari & Hakonen, Pertti J. 2014. Single-mode and multimode Fabry-Perot interference in suspended graphene. Physical Review B. Volume 89, Issue 12. 121414/1-5. ISSN 1550-235X (electronic). ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.89.121414