Hauptseite > Publikationsdatenbank > Role of antisymmetric orbitals and electron-electron interactions on the two-particle spin and valley blockade in graphene double quantum dots > print

001     1042706
005     20250610131447.0
024 7 _ |a 10.1103/PhysRevB.111.165416
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100 1 _ |a Möller, S.
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245 _ _ |a Role of antisymmetric orbitals and electron-electron interactions on the two-particle spin and valley blockade in graphene double quantum dots
260 _ _ |a Woodbury, NY
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520 _ _ |a We report on an experimental study of spin and valley blockade in two-electron bilayer graphene (BLG) double quantum dots (DQDs) and explore the limits set by asymmetric orbitals and electron-electron interactions. The results obtained from magnetotransport measurements on two-electron BLG DQDs, where the resonant tunneling transport involves both orbital symmetric and antisymmetric two-particle states, show a rich level spectrum. We observe a magnetic field tunable spin and valley blockade, which is limited by the orbital splitting, the strength of the electron-electron interaction and the difference in the valley 𝑔-factors between the symmetric and antisymmetric two-particle orbital states. Our conclusions are supported by simulations based on rate equations, which allow the identification of prominent interdot transitions associated with the transition from single- to two-particle states observed in the experiment.
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700 1 _ |a Banszerus, L.
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700 1 _ |a Hecker, K.
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700 1 _ |a Dulisch, H.
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700 1 _ |a Watanabe, K.
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700 1 _ |a Taniguchi, T.
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700 1 _ |a Volk, C.
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700 1 _ |a Stampfer, C.
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773 _ _ |a 10.1103/PhysRevB.111.165416
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856 4 _ |u https://juser.fz-juelich.de/record/1042706/files/PhysRevB.111.165416.pdf
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