1208.1371 (Yuma Okazaki et al.)

Shot noise spectroscopy on a semiconductor quantum dot in the elastic
and inelastic cotunneling regimes    [PDF]

Yuma Okazaki, Satoshi Sasaki, Koji Muraki

We report shot noise spectroscopy on a semiconductor quantum dot in a cotunneling regime. The DC conductance measurements show clear signatures of both elastic and inelastic cotunneling transport inside a Coulomb diamond. We observed Poissonian shot noise with the Fano factor $F\approx 1$ in the elastic cotunneling regime, and super-Poissonian Fano factor $1View original: http://arxiv.org/abs/1208.1371