Thermoelectric Signature of Individual Skyrmions

verfasst von

Alexander Fernández Scarioni, Craig Barton, Héctor Corte-León, Sibylle Sievers, Xiukun Hu, Fernando Ajejas, William Legrand, Nicolas Reyren, Vincent Cros, Olga Kazakova, Hans W. Schumacher

Abstract

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.

Externe Organisation(en)

Physikalisch-Technische Bundesanstalt (PTB)
National Physical Laboratory
Universität Paris-Saclay

Typ

Artikel

Journal

Physical review letters

Band

126

ISSN

0031-9007

Publikationsdatum

16.02.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Elektronische Version(en)

https://doi.org/10.1103/PhysRevLett.126.077202 (Zugang: Offen)