TY  - JOUR
AU  - Weber, P.
AU  - Calvo, H. L.
AU  - Bohle, J.
AU  - Goß, K.
AU  - Meyer, C.
AU  - Wegewijs, M. R.
AU  - Stampfer, C.
TI  - Switchable Coupling of Vibrations to Two-Electron Carbon-Nanotube Quantum Dot States
JO  - Nano letters
VL  - 15
IS  - 7
SN  - 1530-6992
CY  - Washington, DC
PB  - ACS Publ.
M1  - FZJ-2015-05008
SP  - 4417 - 4422
PY  - 2015
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000357964100027
C6  - pmid:26060894
DO  - DOI:10.1021/acs.nanolett.5b00765
UR  - https://juser.fz-juelich.de/record/202856
ER  -