Noncollinear spin-orbit magnetic fields in a carbon nanotube double quantum dot
Date
30/12/2016Metadata
Show full item recordAbstract
We demonstrate experimentally that noncollinear intrinsic spin-orbit magnetic fields can be realized in a curved carbon nanotube two-segment device. Each segment, analyzed in the quantum dot regime, shows near fourfold degenerate shell structure allowing for identification of the spin-orbit coupling and the angle between the two segments. Furthermore, we determine the four unique spin directions of the quantum states for specific shells and magnetic fields. This class of quantum dot systems is particularly interesting when combined with induced superconducting correlations as it may facilitate unconventional superconductivity and detection of Cooper pair entanglement. Our device comprises the necessary elements.
Citation
Hels , M C , Braunecker , B , Grove-Rasmussen , K & Nygård , J 2016 , ' Noncollinear spin-orbit magnetic fields in a carbon nanotube double quantum dot ' , Physical Review Letters , vol. 117 , no. 27 , 276802 . https://doi.org/10.1103/PhysRevLett.117.276802
Publication
Physical Review Letters
Status
Peer reviewed
ISSN
0031-9007Type
Journal article
Rights
© 2016, American Physical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at journals.aps.org /
Description
Funding: Carlsberg Foundation, the European Commission FP7 project SE2ND, the Danish Research Councils, and the Danish National Research Foundation.Collections
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