123 citations · 267 across the 14 of their papers we have counts for
14 papers
Novel Differential Conductance Oscillations in Asymmetric Quantum Point Contacts
Hao Zhang, Phillip M. Wu, Albert M. Chang
Small differential conductance oscillations as a function of source-drain bias were observed and systematically studied in an asymmetric quantum point contact (QPC). These oscillat…
Observation of Kondo Effect in a Quadruple Quantum Dots
Runan Shang, Hai-Ou Li, Gang Cao +7
We investigate the Kondo effect in a quadruple quantum dot device of coupled-double quantum dots (DQDs), which simultaneously contains intra-DQDs and inter-DQDs coupling. A variety…
Quasibound States and Evidence for a Spin 1 Kondo Effect in Asymmetric Quantum Point Contacts
Hao Zhang, Phillip M. Wu, Albert M. Chang
Linear conductance below shows resonance peaks in highly asymmetric quantum point contacts (QPCs). As the channel length increases, the number of peaks also increases. At…
Retrapping Current, Self-Heating, and Hysteretic Current-Voltage Curves in Ultra-Narrow Superconducting Aluminum Nanowires
Peng Li, Phillip M. Wu, Yuriy Bomze +3
Hysteretic I-V (current-voltage) is studied in narrow Al nanowires. The nanowires have a cross section as small as 50 nm^2. We focus on the retapping current in a down-sweep of the…
Gates controlled parallel-coupled double quantum dot on both single layer and bilayer graphene
Lin-Jun Wang, Guo-Ping Guo, Da Wei +5
Here we report the fabrication and quantum transport measurements of gates controlled parallel-coupled double quantum dot on both bilayer and single layer graphene. It is shown tha…
Molecule States in a Gate Tunable Graphene Double Quantum Dot
L. J. Wang, H. O. Li, Z. Su +6
We have measured a graphene double quantum dot device with multiple electrostatic gates that are used to enhance control to investigate it. At low temperatures the transport measur…