Publications (12)
Hydrogen Passivation Effects on Spatially Resolved Charge Trap Densities in Si(100)-SiO
Adam J. Czarnecki, Nikola L. Kolev, Patrick See +5
As silicon-based devices continue to shrink to the nanoscale, traps at the Si-SiO interface pose increasing challenges to device performance. These traps reduce channel carrier…
Demonstration of electron focusing using electronic lenses in low-dimensional system
Chengyu Yan, Michael Pepper, Patrick See +3
We report an all-electric integrable electron focusing lens in n-type GaAs. It is shown that a pronounced focusing peak takes place when the focal point aligns with an on-chip dete…
Interference Effects in a Tunable Quantum Point Contact Integrated with an Electronic Cavity
Chengyu Yan, Sanjeev Kumar, Michael Pepper +5
We show experimentally how quantum interference can be produced using an integrated quantum system comprising an arch-shaped short quantum wire (or quantum point contact, QPC) of 1…
Incipient singlet-triplet states in a hybrid mesoscopic system
Chengyu Yan, Sanjeev Kumar, Michael Pepper +5
In the present work we provide an easily accessible way to achieve the singlet-triplet Kondo effect in a hybrid system consisting of a quantum point contact (QPC) coupled to an ele…
Magnetoresistance in an electronic cavity coupled to one-dimensional systems
Chengyu Yan, Sanjeev Kumar, Patrick See +5
In this work, we performed magnetoresistance measurement in a hybrid system consisting of an arc-shaped quantum point contact (QPC) and a flat, rectangular QPC, both of which toget…
Needle in a haystack: efficiently finding atomically defined quantum dots for electrostatic force microscopy
José Bustamante, Yoichi Miyahara, Logan Fairgrieve-Park +5
The ongoing development of single electron, nano and atomic scale semiconductor devices would benefit greatly from a characterization tool capable of detecting single electron char…