209 citations · 697 across the 13 of their papers we have counts for
13 papers
Dynamic response of a spin-1/2 Kondo singlet
Bryan Hemingway, Stephen Herbert, Michael Melloch +1
We present a study of spin 1/2 Kondo singlets in single electron transistors under a microwave frequency bias excitation. We compare time-averaged conductance to predicted univ…
A quantitative study of spin-flip co-tunneling transport in a quantum dot
Tai-Min Liu, Anh T. Ngo, Bryan Hemingway +4
We report detailed transport measurements in a quantum dot in a spin-flip co-tunneling regime, and a quantitative comparison of the data to microscopic theory. The quantum dot is f…
Magnetic-Field-Induced Crossover to a Nonuniversal Regime in a Kondo Dot
Tai-Min Liu, Bryan Hemingway, Steven Herbert +2
We have measured the magnetic splitting, , of a Kondo peak in the differential conductance of a Single-Electron Transistor while tuning the Kondo temperature, , along two…
Magnetic Splitting of the Zero Bias Peak in a Quantum Point Contact with a Variable Aspect Ratio
Tai-Min Liu, Bryan Hemingway, Andrei Kogan +2
We report a zero-bias peak in the differential conductance of a Quantum Point Contact (QPC), which splits in an external magnetic field. The peak is observed over a range of device…
Evidence for Macroscopic Quantum Tunneling of Phase Slips in Long One-Dimensional Superconducting Al Wires
Fabio Altomare, Albert M. Chang, Michael R. Melloch +2
Quantum phase slips have received much attention due to their relevance to superfluids in reduced dimensions and to models of cosmic string production in the Early Universe. Their…
Ultra narrow AuPd and Al wires
Fabio Altomare, Albert M. Chang, Michael R. Melloch +2
In this letter we discuss a novel and versatile template technique aimed to the fabrication of sub-10 nm wide wires. Using this technique, we have successfully measured AuPd wires,…