Echolocation by Quasiparticles

Details Echolocation by Quasiparticles Echolocation by Quasiparticles

2009-10-23

arxiv.org/abs/0910.4577v3

Physics

Condensed Matter

Superconductivity

4+ pages

Scientific paper

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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