Cotunneling-Mediated Transport through Excited States in the Coulomb-Blockade Regime
Cotunneling-Mediated Transport through Excited States in the Coulomb-Blockade Regime
We present finite-bias transport measurements on a few-electron quantum dot. In the Coulomb-blockade regime, strong signatures of inelastic cotunneling occur which can directly be assigned to excited states observed in the nonblockaded regime. In addition, we observe structures related to sequential tunneling through the dot, occurring after it has been …