Local thermoelectric response from a single Neél domain wall

authored by: Robert Puttock, Craig Barton, Elias Saugar, Petr Klapetek, Alexander Fernández-Scarioni, Paulo Freitas, Hans W. Schumacher, Thomas Ostler, Oksana Chubykalo-Fesenko, Olga Kazakova
Abstract: Spatially resolved thermoelectric detection of magnetic systems provides a unique platform for the investigation of spintronic and spin caloritronic effects. Hitherto, these investigations have been resolution-limited, confining analysis of the thermoelectric response to regions where the magnetization is uniform or collinear at length scales comparable to the domain size. Here, we investigate the thermoelectric response from a single trapped domain wall using a heated scanning probe. Following this approach, we unambiguously resolve the domain wall due to its local thermoelectric response. Combining analytical and thermal micromagnetic modeling, we conclude that the measured thermoelectric signature is unique to that of a domain wall with a Neél-like character. Our approach is highly sensitive to the plane of domain wall rotation, which permits the distinct identification of Bloch or Neél walls at the nanoscale and could pave the way for the identification and characterization of a range of noncollinear spin textures through their thermoelectric signatures.
External Organisation(s): National Physical Laboratory (NPL)
Spanish National Research Council (CSIC)
Czech Metrology Institute (CMI)
Brno University of Technology
Physikalisch-Technische Bundesanstalt PTB
INESC-ID
Sheffield Hallam University
University of Hull
Type: Article
Journal: Science advances
Volume: 8
ISSN: 2375-2548
Publication date: 11.2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General
Electronic version(s): https://doi.org/10.1126/sciadv.adc9798 (Access: Open)

BibTeX

@article{e553e0b8eb524e73a6aa5b393069921c,
title = "Local thermoelectric response from a single Ne{\'e}l domain wall",
abstract = "Spatially resolved thermoelectric detection of magnetic systems provides a unique platform for the investigation of spintronic and spin caloritronic effects. Hitherto, these investigations have been resolution-limited, confining analysis of the thermoelectric response to regions where the magnetization is uniform or collinear at length scales comparable to the domain size. Here, we investigate the thermoelectric response from a single trapped domain wall using a heated scanning probe. Following this approach, we unambiguously resolve the domain wall due to its local thermoelectric response. Combining analytical and thermal micromagnetic modeling, we conclude that the measured thermoelectric signature is unique to that of a domain wall with a Ne{\'e}l-like character. Our approach is highly sensitive to the plane of domain wall rotation, which permits the distinct identification of Bloch or Ne{\'e}l walls at the nanoscale and could pave the way for the identification and characterization of a range of noncollinear spin textures through their thermoelectric signatures.",
author = "Robert Puttock and Craig Barton and Elias Saugar and Petr Klapetek and Alexander Fern{\'a}ndez-Scarioni and Paulo Freitas and Schumacher, {Hans W.} and Thomas Ostler and Oksana Chubykalo-Fesenko and Olga Kazakova",
note = "Funding Information: This work was supported in part by the European Metrology Research Programme (EMRP) and EMRP participating countries under the European Metrology Programme for Innovation and Research (EMPIR) Project No. 17FUN08 -TOPS Metrology for topological spin structures. R.P., C.B., and O.K. also acknowledge the support of the U.K. government department for Business, Energy, and Industrial Strategy through NMS funding (Low Loss Electronics) and the U.K. National Quantum Technologies Programme. E.S. and O.C-.F were supported by the PID2019-108075RB-C31/AEI/10.13039/501100011033 grant from the Spanish Ministry of Science and Innovation T.O., E.S., and O.C-.F acknowledge the support of the COST Action CA17123 MAGNETOFON. H.W.S. acknowledges funding within DFG Priority Program 2137 Skyrmionics. A.F.-S. and H.W.S. acknowledge funding by the DFG under Priority Program 2137 Skyrmionics and under Germany{\textquoteright}s Excellence Strategy–EXC-2123 QuantumFrontiers–390837967. ",
year = "2022",
month = nov,
doi = "10.1126/sciadv.adc9798",
language = "English",
volume = "8",
journal = "Science advances",
issn = "2375-2548",
publisher = "American Association for the Advancement of Science",
number = "47",
}