Workshop book - Physikzentrum der RWTH Aachen - RWTH Aachen ...

Talks Monday February 4
Fine structure in cotunneling spectroscopy
Jens Paaske, University of Copenhagen, Denmark
Cotunneling through Coulomb blockaded nano-transistors provides an informative
spectroscopy of the system bridging source and drain contacts. In this
talk, I address the question to what extent this transport probe can also tell
us more about the spin-orbit coupling in the dot, tube, wire or molecule under
scrutiny. From inelastic cotunneling spectroscopy, one might directly observe
avoided crossings between spin-orbit coupled states, but there are also a
number of more subtle clues to be picked up. What happens to the Kondo
resonances, reflecting the “flippable” degeneracies in the system, what are the
effects on tunneling induced level renormalization, and to what extent have
we already observed some of this spectroscopic fine structure experimentally?
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