Imaging Electron Wave Functions Inside Open Quantum Rings

Details Imaging Electron Wave Functions Inside Open Quantum Rings Imaging Electron Wave Functions Inside Open Quantum Rings

2007-09-03

arxiv.org/abs/0709.0226v2

Phys. Rev. Lett. 99, 136807 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

new title

Scientific paper

10.1103/PhysRevLett.99.136807

Combining Scanning Gate Microscopy (SGM) experiments and simulations, we demonstrate low temperature imaging of electron probability density $|\Psi|^{2}(x,y)$ in embedded mesoscopic quantum rings (QRs). The tip-induced conductance modulations share the same temperature dependence as the Aharonov-Bohm effect, indicating that they originate from electron wavefunction interferences. Simulations of both $|\Psi|^{2}(x,y)$ and SGM conductance maps reproduce the main experimental observations and link fringes in SGM images to $|\Psi|^{2}(x,y)$.

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