Details
| Original language | English |
|---|---|
| Title of host publication | 2024 Conference on Precision Electromagnetic Measurements, CPEM 2024 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (electronic) | 9798350361049 |
| Publication status | Published - 12 Jul 2024 |
| Externally published | Yes |
| Event | 2024 Conference on Precision Electromagnetic Measurements (CPEM) - Denver, United States Duration: 8 Jul 2024 → 12 Jul 2024 |
Publication series
| Name | CPEM Digest (Conference on Precision Electromagnetic Measurements) |
|---|---|
| ISSN (Print) | 0589-1485 |
Abstract
This study explores the quantum anomalous Hall effect (QAHE) in V-doped (BiSb)2Te3, a magnetically-doped topological insulators. We use a precision resistance bridge based on a cryogenic current comparator to measure the QAHE at a zero magnetic field with unprecedented uncertainty (ΔRxy/RK ≤ 12 nΩ/Ω). Measurement results obtained at currents between 40 and 300 nA demonstrate the potential of this technology for quantum metrology, offering a path to a primary electrical resistance standard without external magnetic fields.
Keywords
- Hall effect devices, metrology, topological insulators
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Instrumentation
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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2024 Conference on Precision Electromagnetic Measurements, CPEM 2024 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2024. (CPEM Digest (Conference on Precision Electromagnetic Measurements)).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - High-accuracy measurements of the quantum anomalous Hall effect for resistance metrology
AU - Patel, Dinesh K.
AU - Kruskopf, Mattias
AU - Fijalkowski, Kajetan M.
AU - Gotz, Martin
AU - Pesel, Eckart
AU - Jaime, Marcelo
AU - Scherer, Hansjorg
AU - Schreyeck, Steffen
AU - Brunner, Karl
AU - Gould, Charles
AU - Molenkamp, Laurens W.
N1 - Publisher Copyright: © 2024 IEEE.
PY - 2024/7/12
Y1 - 2024/7/12
N2 - This study explores the quantum anomalous Hall effect (QAHE) in V-doped (BiSb)2Te3, a magnetically-doped topological insulators. We use a precision resistance bridge based on a cryogenic current comparator to measure the QAHE at a zero magnetic field with unprecedented uncertainty (ΔRxy/RK ≤ 12 nΩ/Ω). Measurement results obtained at currents between 40 and 300 nA demonstrate the potential of this technology for quantum metrology, offering a path to a primary electrical resistance standard without external magnetic fields.
AB - This study explores the quantum anomalous Hall effect (QAHE) in V-doped (BiSb)2Te3, a magnetically-doped topological insulators. We use a precision resistance bridge based on a cryogenic current comparator to measure the QAHE at a zero magnetic field with unprecedented uncertainty (ΔRxy/RK ≤ 12 nΩ/Ω). Measurement results obtained at currents between 40 and 300 nA demonstrate the potential of this technology for quantum metrology, offering a path to a primary electrical resistance standard without external magnetic fields.
KW - Hall effect devices
KW - metrology
KW - topological insulators
UR - http://www.scopus.com/inward/record.url?scp=85203512980&partnerID=8YFLogxK
U2 - 10.1109/cpem61406.2024.10646071
DO - 10.1109/cpem61406.2024.10646071
M3 - Conference contribution
AN - SCOPUS:85203512980
T3 - CPEM Digest (Conference on Precision Electromagnetic Measurements)
BT - 2024 Conference on Precision Electromagnetic Measurements, CPEM 2024 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2024 Conference on Precision Electromagnetic Measurements (CPEM)
Y2 - 8 July 2024 through 12 July 2024
ER -