KOPS - The Institutional Repository of the University of Konstanz

Controlling magnetism by ultrashort laser pulses: from fundamentals to nanoscale engineering

Controlling magnetism by ultrashort laser pulses: from fundamentals to nanoscale engineering

Cite This

Files in this item

Files Size Format View

There are no files associated with this item.

BOSSINI, Davide, Theo RASING, 2016. Controlling magnetism by ultrashort laser pulses: from fundamentals to nanoscale engineering. Ultrafast Bandgap Photonics. Baltimore, Maryland, Apr 18, 2016 - Apr 20, 2016. In: RAFAILOV, Michael K., ed., Eric MAZUR, ed.. Ultrafast Bandgap Photonics. Bellingham, Washington:SPIE, 98351P. ISSN 0277-786X. eISSN 1996-756X. ISBN 978-1-5106-0076-8. Available under: doi: 10.1117/12.2225199

@inproceedings{Bossini2016Contr-53334, title={Controlling magnetism by ultrashort laser pulses: from fundamentals to nanoscale engineering}, year={2016}, doi={10.1117/12.2225199}, number={9835}, isbn={978-1-5106-0076-8}, issn={0277-786X}, address={Bellingham, Washington}, publisher={SPIE}, series={Proceedings of SPIE}, booktitle={Ultrafast Bandgap Photonics}, editor={Rafailov, Michael K. and Mazur, Eric}, author={Bossini, Davide and Rasing, Theo}, note={Article Number: 98351P} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/53334"> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dcterms:abstract xml:lang="eng">From the discovery of sub-picosecond demagnetization over a decade ago [1] to the recent demonstration of magnetization reversal by a single 40 femtosecond laser pulse [2], the manipulation of spins by ultra-short laser pulses has become a fundamentally challenging topic with a potentially high impact for future spintronics, data storage and manipulation and quantum computation [3]. It was realized that the femtosecond laser induced all-optical switching (AOS) as observed in ferrimagnets exploits the laser induced strongly non-equilibrium dynamics and the antiferromagnetic exchange interaction between their sublattices [4-6]. This opens the way to engineer new magnetic materials for AOS [7,8], though for real applications nanoscale control of inhomogeneities appears to be relevant [9]. Besides the intruiging technological implications of these observations, they broadened remarkably the frontiers of our fundamental knowledge of magnetic phenomena. The laser driven out-of-equilibrium states cannot be described in term of the well-established thermodynamical approach, which is based on the concepts of equilibrium and adiabatic transformations. Theoretical efforts, although in their infancy, have already demonstrated [5,6] that light-induced spin dynamics on the (sub)-picosecond time scale results in phenomena utterly forbidden in a thermodynamical framework. Another challenge is how to bring the optical manipulation of magnetic media to the required nanoscale. This is clearly a key element for the perspectives in terms of magnetic recording. In addition, it would allow to explore a novel regime of spin dynamics, since the investigation of magnets on the femtosecond time-scale and the nanometer length-scale simultaneously is unexplored. One experimental approach which may be successful makes use of wave-shaping techniques [10]. Recent results with engineered hybrid magnetic materials and nanofocusing via a plasmonic antenna showed the practical potential of AOS: the magnetization of domains as small as 50 nm was repeatedly reversed by a single laser pulse [11]. The process was fully deterministic, implying that each laser pulse totally reversed the magnetization of the domain in a reproducible way. Employing antennas provided another significant benefit, by decreasing the threshold laser energy required for the AOS to occur.</dcterms:abstract> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:contributor>Bossini, Davide</dc:contributor> <dc:creator>Rasing, Theo</dc:creator> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/53334"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-04-01T11:20:16Z</dcterms:available> <dcterms:title>Controlling magnetism by ultrashort laser pulses: from fundamentals to nanoscale engineering</dcterms:title> <dcterms:issued>2016</dcterms:issued> <dc:creator>Bossini, Davide</dc:creator> <dc:contributor>Rasing, Theo</dc:contributor> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dc:rights>terms-of-use</dc:rights> <dc:language>eng</dc:language> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-04-01T11:20:16Z</dc:date> <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/> </rdf:Description> </rdf:RDF>

This item appears in the following Collection(s)

Search KOPS


My Account