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arXiv · 1008.0670

Virtual Scanning Tunneling Microscopy: A Local Spectroscopic Probe of 2D Electron Systems

Adam Sciambi·Matthew Pelliccione·Seth R. Bank·Arthur C. Gossard·David Goldhaber-Gordon
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Abstract

We propose a novel probe technique capable of performing local low-temperature spectroscopy on a 2D electron system (2DES) in a semiconductor heterostructure. Motivated by predicted spatially-structured electron phases, the probe uses a charged metal tip to induce electrons to tunnel locally, directly below the tip, from a "probe" 2DES to a "subject" 2DES of interest. We test this concept with large-area (non-scanning) tunneling measurements, and predict a high spatial resolution and spectroscopic capability, with minimal influence on the physics in the subject 2DES.

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Adam Sciambi, Matthew Pelliccione, Seth R. Bank, Arthur C. Gossard, David Goldhaber-Gordon. 2010-08-03. Virtual Scanning Tunneling Microscopy: A Local Spectroscopic Probe of 2D Electron Systems. https://doi.org/10.1063/1.3492440

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