231 citations · 308 across the 7 of their papers we have counts for
7 papers
Temperature induced shift in the pinch-off voltage of mesoscopic devices
A. E. Hansen, A. Kristensen, H. Bruus
Detailed experimental studies of the conductance of mesoscopic GaAs devices in the few-mode regime reveal a novel thermal effect: for temperatures up to at least 10 K the measured…
Temperature dependent deviations from ideal quantization of plateau conductances in GaAs quantum point contacts
A. E. Hansen, A. Kristensen, H. Bruus
We present detailed experimental studies of the temperature dependence of the plateau conductance of GaAs quantum point contacts in the temperature range from 0.3 K to 10 K. Due to…
Bias dependent subband edges and the 0.7 conductance anomaly
Anders Kristensen, Henrik Bruus
The 0.7 2e^2/h conductance anomaly is studied in strongly confined, etched GaAs/GaAlAs quantum point contacts by measuring the differential conductance G as a function of source-dr…
Bias and temperature dependence of the 0.7 conductance anomaly in Quantum Point Contacts
A. Kristensen, H. Bruus, A. E. Hansen +8
The 0.7 (2e^2/h) conductance anomaly is studied in strongly confined, etched GaAs/GaAlAs quantum point contacts, by measuring the differential conductance as a function of source-d…
Activated Behavior of the 0.7 2(e^2)/h Conductance Anomaly in Quantum Point Contacts
A. Kristensen, H. Bruus, A. Forchel +5
The 0.7 conductance anomaly in the quantized conductance of trench etched GaAs quantum point contacts is studied experimentally. The temperature dependence of the anomaly measured…
Temperature dependence of the ``0.7'' 2(e^2)/h quasi plateau in strongly confined quantum point contacts
A. Kristensen, P. E. Lindelof, J. B. Jensen +8
We present new results of the ``0.7'' 2(e^2)/h structure or quasi plateau in some of the most strongly confined point contacts so far reported. This strong confinement is obtained…