%0 Journal Article
%A Möller, S.
%A Banszerus, L.
%A Hecker, K.
%A Dulisch, H.
%A Watanabe, K.
%A Taniguchi, T.
%A Volk, C.
%A Stampfer, C.
%T Role of antisymmetric orbitals and electron-electron interactions on the two-particle spin and valley blockade in graphene double quantum dots
%J Physical review / B
%V 111
%N 16
%@ 2469-9950
%C Woodbury, NY
%I Inst.
%M FZJ-2025-02652
%P 165416
%D 2025
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001477725400003
%R 10.1103/PhysRevB.111.165416
%U https://juser.fz-juelich.de/record/1042706