Cotunneling Spectroscopy in Few-Electron Quantum Dots
D. M. Zumbuhl, C. M. Marcus, M. P. Hanson, A. C. Gossard
Abstract
Few-electron quantum dots are investigated in the regime of strong tunneling to the leads. Inelastic cotunneling is used to measure the two-electron singlet-triplet splitting above and below a magnetic field driven singlet-triplet transition. Evidence for a non-equilibrium two-electron singlet-triplet Kondo effect is presented. Cotunneling allows orbital correlations and parameters characterizing entanglement of the two-electron singlet ground state to be extracted from dc transport.
Create a lesson
Related papers
Single anyons and anyon binding in a quantum Hall dot
Marco Valentini, Will Wang, Amir Shapour Mohammadi et al.
Spin textures at the Fermi surface of ferromagnets and associated torque
T. Valet, J. Li, H. Jaffrès et al.
Dark state preparation in a zero-field-split molecular triplet
Maria Pfahler, Andrea Donarini
Plasmon modes in triple-point semimetal, its quadratic cousin, and Hopf semimetal
Ipsita Mandal
Role of dissipation dilution in achieving high mechanical quality factors in van der Waals resonators
Lukas Schleicher, Leonard Geilen, Alexander Musta et al.
Zeeman spin quantum geometry and intrinsic gyrotropic spin current
Srijan Chatterjee, Tarun Kanti Ghosh