700 citations · 2.7k across the 90 of their papers we have counts for
90 papers
Engineering electron wavefunctions in asymmetrically confined quasi one-dimensional structures
S. Kumar, M. Pepper, H. Montagu +4
We present results on electron transport in quasi-one dimensional (1D) quantum wires in GaAs/AlGaAs heterostructures obtained using an asymmetric confinement potential. The variati…
Effects of biased and unbiased illuminations on dopant-free GaAs/AlGaAs 2DEGs
A. Shetty, F. Sfigakis, W. Y. Mak +16
Illumination is performed at low temperature on dopant-free two-dimensional electron gases (2DEGs) of varying depths, under unbiased (gates grounded) and biased (gates at a positiv…
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…
Thermoelectric property of a one dimensional channel in the presence of a transverse magnetic field
Chengyu Yan, Michael Pepper, Patrick See +3
We studied the thermal conduction through a quantum point contact (QPC), defined in GaAs-AlGaAs heterostructure, in the presence of a transverse magnetic field. A shift in the posi…
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…
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…