This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1021/acs.nanolett.5b00765 in citations.
Please use the identifier: http://hdl.handle.net/2128/22762 in citations.
Switchable Coupling of Vibrations to Two-Electron Carbon-Nanotube Quantum Dot States
Switchable Coupling of Vibrations to Two-Electron Carbon-Nanotube Quantum Dot States
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-...
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Personal Name(s): | Weber, P. |
---|---|
Calvo, H. L. / Bohle, J. / Goß, K. / Meyer, C. / Wegewijs, M. R. / Stampfer, C. (Corresponding author) | |
Contributing Institute: |
Theoretische Nanoelektronik; PGI-2 |
Published in: | Nano letters, 15 (2015) 7, S. 4417 - 4422 |
Imprint: |
Washington, DC
ACS Publ.
2015
|
DOI: |
10.1021/acs.nanolett.5b00765 |
PubMed ID: |
26060894 |
Document Type: |
Journal Article |
Research Program: |
Controlling Electron Charge-Based Phenomena Controlling Spin-Based Phenomena |
Link: |
OpenAccess OpenAccess OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/22762 in citations.
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. |