Current imaging in quantum point contact
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Cresti, Alessandro
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Article
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2006
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John Wiley and Sons
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English
β 515 KB
## Abstract The experimental imaging of microscopic currents in twoβdimensional electron gas based systems has been recently realized exploiting an ingenious use of scanning microscope tips. By means of the Keldysh Green's function formalism in a tightβbinding framework, I study the electron transp