On the imaging of electron transport in semiconductor quantum structures by scanning-gate microscopy: successes and limitations

H Sellier, B Hackens, MG Pala, F Martins… - Semiconductor …, 2011 - iopscience.iop.org
This paper presents a brief review of scanning-gate microscopy applied to the imaging of
electron transport in buried semiconductor quantum structures. After an introduction to the …

Transport inefficiency in branched-out mesoscopic networks: An analog of the Braess paradox

MG Pala, S Baltazar, P Liu, H Sellier, B Hackens… - Physical review …, 2012 - APS
We present evidence for a counterintuitive behavior of semiconductor mesoscopic networks
that is the analog of the Braess paradox encountered in classical networks. A numerical …

Finite element 3D model of a double quantum ring: effects of electric and laser fields on the interband transition

A Radu, C Stan, D Bejan - New Journal of Physics, 2023 - iopscience.iop.org
In this work, the changes in the energy of electrons and holes, oscillator strength and
interband transition time when external fields are applied to a GaAs/AlGaAs semiconductor …

Imaging electron wave functions inside open quantum rings

F Martins, B Hackens, MG Pala, T Ouisse, H Sellier… - Physical review …, 2007 - APS
Combining scanning gate microscopy (SGM) experiments and simulations, we demonstrate
low temperature imaging of the electron probability density| Ψ| 2 (x, y) in embedded …

Imaging Coulomb islands in a quantum Hall interferometer

B Hackens, F Martins, S Faniel, CA Dutu… - Nature …, 2010 - nature.com
In the quantum Hall regime, near integer filling factors, electrons should only be transmitted
through spatially separated edge states. However, in mesoscopic systems, electronic …

Observation of interaction-induced modulations of a quantum Hall liquid's area

I Sivan, HK Choi, J Park, A Rosenblatt, Y Gefen… - Nature …, 2016 - nature.com
Studies of electronic interferometers, based on edge-channel transport in the quantum Hall
effect regime, have been stimulated by the search for evidence of abelian and non-abelian …

Recurrent quantum scars in a mesoscopic graphene ring

D Cabosart, A Felten, N Reckinger, A Iordanescu… - Nano …, 2017 - ACS Publications
When coherent charge carriers cross micron-scale cavities, their dynamics can be governed
by a few resonant states, also called “quantum scars”, determined by the cavity geometry …

Theory of scanning gate microscopy

C Gorini, RA Jalabert, W Szewc, S Tomsovic… - Physical Review B …, 2013 - APS
A systematic theory of the conductance measurements of noninvasive (weak probe)
scanning gate microscopy is presented that provides an interpretation of what precisely is …

Wave packet dynamics in semiconductor quantum rings of finite width

A Chaves, GA Farias, FM Peeters, B Szafran - Physical Review B—Condensed …, 2009 - APS
The time evolution of a wave packet injected into a semiconductor quantum ring is
investigated in order to obtain the transmission and reflection probabilities. Within the …

Enhanced carrier transport along edges of graphene devices

J Chae, S Jung, S Woo, H Baek, J Ha, YJ Song… - Nano …, 2012 - ACS Publications
The relation between macroscopic charge transport properties and microscopic carrier
distribution is one of the central issues in the physics and future applications of graphene …