期刊
PHYSICAL REVIEW LETTERS
卷 126, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.126.077202
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资金
- European Metrology Research Programme (EMRP)
- EMRP participating countries under the European Metrology Programme for Innovation and Research (EMPIR) [17FUN08-TOPS]
- Deutsche Forschungsgemeinschaft under Germany's Excellence Strategy [EXC-2123 QuantumFrontiers-390837967]
- Agence Nationale de la Recherche, France [ANR-17CE24-0025]
- Horizon2020 Framework Programme of the European Commission
- Defense Advanced Research Projects Agency (DARPA) Topological Excitations in Electronics (TEE) program through Grant MIPR under FET-Proactive Grant [HR0011831554, 824123]
- UK government department for Business, Energy, and Industrial Strategy (IS) through the UK national quantum technologies programme (Low Loss Electronics project)
Researchers experimentally characterized the thermoelectrical signature of individual skyrmions in chiral Pt/Co/Ru multilayers and discussed possible topological contributions. This method allows for noninvasive detection and counting of skyrmions and enables studies of topological thermoelectric effects on the nanoscale.
We experimentally study the thermoelectrical signature of individual skyrmions in chiral Pt/Co/Ru multilayers. Using a combination of controlled nucleation, single skyrmion annihilation, and magnetic field dependent measurements the thermoelectric signature of individual skyrmions is characterized. The observed signature is explained by the anomalous Nernst effect of the skyrmion's spin structure. Possible topological contributions to the observed thermoelectrical signature are discussed. Such thermoelectrical characterization allows for noninvasive detection and counting of skyrmions and enables fundamental studies of topological thermoelectric effects on the nanoscale.
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