Turkkorkmaz, Akin;
Kumar, Sanjeev;
(2026)
Effect of Disordered Potentials on Quantized Conductance in One- Dimensional Ballistic Channels.
In:
IEEE 2025 Nanotechnology Materials and Devices Conference (NMDC).
IEEE
(In press).
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Abstract
The deviations from the integer quantization of conductance in units of 2e2 /h in the two-terminal measurement of one-dimensional (1D) ballistic channels defined electrostatically on the two-dimensional electron gas (2DEG) have generally been attributed to correlation and impuritydriven effects. We show the role of random disorder potential and its distribution on the quantized conductance using the tight binding model. Our results show similarities to anomalies observed in experiments, such as the “0.7 conductance anomaly”, which is one of the unsettled conductance features in the physics of 1D quantum wires.
| Type: | Proceedings paper |
|---|---|
| Title: | Effect of Disordered Potentials on Quantized Conductance in One- Dimensional Ballistic Channels |
| Event: | IEEE 2025 Nanotechnology Materials and Devices Conference (NMDC) |
| Dates: | 9 Oct 2025 - 11 Oct 2025 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://2025.ieeenmdc.org/ |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10216217 |
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