Scanning Gate Microscopy of a Nanostructure where Electrons Interact

Details Scanning Gate Microscopy of a Nanostructure where Electrons Interact Scanning Gate Microscopy of a Nanostructure where Electrons Interact

2008-01-25

arxiv.org/abs/0801.3970v2

Phys. Rev. Lett. 100 (2008) 226802-1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevLett.100.226802

We show that scanning gate microscopy can be used for probing electron-electron interactions inside a nanostructure. We assume a simple model made of two non-interacting strips attached to an interacting nanosystem. In one of the strips, the electrostatic potential can be locally varied by a charged tip. This change induces corrections upon the nanosystem Hartree-Fock self-energies which enhance the fringes spaced by half the Fermi wavelength in the images giving the quantum conductance as a function of the tip position.

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