%0 Journal Article
%A Weber, P.
%A Calvo, H. L.
%A Bohle, J.
%A Goß, K.
%A Meyer, C.
%A Wegewijs, M. R.
%A Stampfer, C.
%T Switchable Coupling of Vibrations to Two-Electron Carbon-Nanotube Quantum Dot States
%J Nano letters
%V 15
%N 7
%@ 1530-6992
%C Washington, DC
%I ACS Publ.
%M FZJ-2015-05008
%P 4417 - 4422
%D 2015
%X We report transport measurements on a quantum dot in a partly suspended carbon nanotube. Electrostatic tuning allows us to modify and even switch “on” and “off” the coupling to the quantized stretching vibration across several charge states. The magnetic-field dependence indicates that only the two-electron spin-triplet excited state couples to the mechanical motion, indicating mechanical coupling to both the valley degree of freedom and the exchange interaction, in contrast to standard models.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000357964100027
%$ pmid:26060894
%R 10.1021/acs.nanolett.5b00765
%U https://juser.fz-juelich.de/record/202856