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arXiv · 0910.4577

Echolocation by Quasiparticles

Sumiran Pujari·C. L. Henley
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Abstract

It is shown that the local density of states (LDOS), measured in an Scanning Tunneling Microscopy (STM) experiment, at a single tip position contains oscillations as a function of Energy, due to quasiparticle interference, which is related to the positions of nearby scatterers. We propose a method of STM data analysis based on this idea, which can be used to locate the scatterers. In the case of a superconductor, the method can potentially distinguish the nature of the scattering by a particular impurity.

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Sumiran Pujari, C. L. Henley. 2009-10-23. Echolocation by Quasiparticles. https://doi.org/10.1103/physrevb.82.035109

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