Fabry-Pérot Oscillations in Correlated Carbon Nanotubes.

Autor:	Yang W; ICFO-Institut De Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain.; Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China., Urgell C; ICFO-Institut De Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain., De Bonis SL; ICFO-Institut De Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain., Margańska M; Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany., Grifoni M; Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany., Bachtold A; ICFO-Institut De Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain.
Jazyk:	angličtina
Zdroj:	Physical review letters [Phys Rev Lett] 2020 Oct 30; Vol. 125 (18), pp. 187701.
DOI:	10.1103/PhysRevLett.125.187701
Abstrakt:	We report the observation of an intriguing behavior in the transport properties of nanodevices operating in a regime between the Fabry-Pérot and the Kondo limits. Using ultrahigh quality nanotube devices, we study how the conductance oscillates when sweeping the gate voltage. Surprisingly, we observe a fourfold enhancement of the oscillation period upon decreasing temperature, signaling a crossover from single-electron tunneling to Fabry-Pérot interference. These results suggest that the Fabry-Pérot interference occurs in a regime where electrons are correlated. The link between the measured correlated Fabry-Pérot oscillations and the SU(4) Kondo effect is discussed.
Databáze:	MEDLINE
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