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dc.contributor.author
Zhang, Wentao
dc.contributor.author
Maldonado, Pablo
dc.contributor.author
Jin, Zuanming
dc.contributor.author
Seifert, Tom S.
dc.contributor.author
Arabski, Jacek
dc.contributor.author
Schmerber, Guy
dc.contributor.author
Beaurepaire, Eric
dc.contributor.author
Bonn, Mischa
dc.contributor.author
Kampfrath, Tobias
dc.contributor.author
Oppeneer, Peter M.
dc.contributor.author
Turchinovich, Dmitry
dc.date.accessioned
2020-09-10T12:24:50Z
dc.date.available
2020-09-04T20:21:19Z
dc.date.available
2020-09-10T12:24:50Z
dc.date.issued
2020
dc.identifier.issn
2041-1723
dc.identifier.other
10.1038/s41467-020-17935-6
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/438655
dc.identifier.doi
10.3929/ethz-b-000438655
dc.description.abstract
A material’s magnetic state and its dynamics are of great fundamental research interest and are also at the core of a wide plethora of modern technologies. However, reliable access to magnetization dynamics in materials and devices on the technologically relevant ultrafast timescale, and under realistic device-operation conditions, remains a challenge. Here, we demonstrate a method of ultrafast terahertz (THz) magnetometry, which gives direct access to the (sub-)picosecond magnetization dynamics even in encapsulated materials or devices in a contact-free fashion, in a fully calibrated manner, and under ambient conditions. As a showcase for this powerful method, we measure the ultrafast magnetization dynamics in a laser-excited encapsulated iron film. Our measurements reveal and disentangle distinct contributions originating from (i) incoherent hot-magnon-driven magnetization quenching and (ii) coherent acoustically-driven modulation of the exchange interaction in iron, paving the way to technologies utilizing ultrafast heat-free control of magnetism. High sensitivity and relative ease of experimental arrangement highlight the promise of ultrafast THz magnetometry for both fundamental studies and the technological applications of magnetism.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Nature Publishing Group
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Ultrafast terahertz magnetometry
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2020-08-25
ethz.journal.title
Nature Communications
ethz.journal.volume
11
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Nat Commun
ethz.pages.start
4247
en_US
ethz.size
9 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
London
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2020-09-04T20:22:08Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-09-10T12:25:01Z
ethz.rosetta.lastUpdated
2021-02-15T17:08:14Z
ethz.rosetta.versionExported
true
ethz.COinS
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