Thursday, August 1, 2013

1307.8165 (Niels Ubbelohde et al.)

Spin-dependent shot noise enhancement in a quantum dot    [PDF]

Niels Ubbelohde, Christian Fricke, Frank Hohls, Rolf J. Haug
The spin-dependent dynamical blockade was investigated in a lateral quantum dot in a magnetic field. Spin-polarized edge channels in the two-dimensional leads and the spatial distribution of Landau orbitals in the dot modulate the tunnel coupling of the quantum dot level spectrum. In a measurement of the electron shot noise we observe a pattern of super-Poissonian noise which is correlated to the spin-dependent competition between different transport channels.
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