Ultrafast Control of Magnetic Anisotropy by Resonant Excitation of 4f Electrons and Phonons in Sm0.7Er0.3FeO3

Fitzky, Gabriel; Nakajima, Makoto; Koike, Yohei; Leitenstorfer, Alfred; Kurihara, Takayuki

Ultrafast Control of Magnetic Anisotropy by Resonant Excitation of 4f Electrons and Phonons in Sm_0.7Er_0.3FeO₃

Dateien

Fitzky_2-1cn936ey9ixi74.pdfGröße: 1.07 MBDownloads: 168

Datum

2021

Autor:innen

Fitzky, Gabriel

Nakajima, Makoto

Koike, Yohei

Leitenstorfer, Alfred

Kurihara, Takayuki

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Letters. American Physical Society (APS). 2021, 127(10), 107401. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.127.107401

Zusammenfassung

We compare the ultrafast dynamics of the spin reorientation transition in the orthoferrite Sm_0.7Er_0.3FeO₃ following two different pumping mechanisms. Intense few-cycle pulses in the midinfrared selectively excite either the f−f electronic transition of Sm³⁺ or optical phonons. With phonon pumping, a finite time delay exists for the spin reorientation, reflecting the energy transfer between the lattice and 4f system. In contrast, an instantaneous response is found for resonant f−f excitation. This suggests that 4f electronic pumping can directly alter the magnetic anisotropy due to the modification of 4f−3d exchange at femtosecond timescales, without involving lattice thermalization.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

FITZKY, Gabriel, Makoto NAKAJIMA, Yohei KOIKE, Alfred LEITENSTORFER, Takayuki KURIHARA, 2021. Ultrafast Control of Magnetic Anisotropy by Resonant Excitation of 4f Electrons and Phonons in Sm_0.7Er_0.3FeO₃. In: Physical Review Letters. American Physical Society (APS). 2021, 127(10), 107401. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.127.107401

BibTex

@article{Fitzky2021Ultra-54880,
  year={2021},
  doi={10.1103/PhysRevLett.127.107401},
  title={Ultrafast Control of Magnetic Anisotropy by Resonant Excitation of 4f Electrons and Phonons in Sm<sub>0.7</sub>Er<sub>0.3</sub>FeO<sub>3</sub>},
  number={10},
  volume={127},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Fitzky, Gabriel and Nakajima, Makoto and Koike, Yohei and Leitenstorfer, Alfred and Kurihara, Takayuki},
  note={Article Number: 107401}
}

RDF

<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/server/rdf/resource/123456789/54880">
    <dc:contributor>Leitenstorfer, Alfred</dc:contributor>
    <dc:language>eng</dc:language>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/54880/1/Fitzky_2-1cn936ey9ixi74.pdf"/>
    <dc:creator>Koike, Yohei</dc:creator>
    <dc:contributor>Koike, Yohei</dc:contributor>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Fitzky, Gabriel</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-09-16T07:16:53Z</dc:date>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Kurihara, Takayuki</dc:contributor>
    <dc:contributor>Nakajima, Makoto</dc:contributor>
    <dc:creator>Fitzky, Gabriel</dc:creator>
    <dcterms:abstract xml:lang="eng">We compare the ultrafast dynamics of the spin reorientation transition in the orthoferrite Sm&lt;sub&gt;0.7&lt;/sub&gt;Er&lt;sub&gt;0.3&lt;/sub&gt;FeO&lt;sub&gt;3&lt;/sub&gt; following two different pumping mechanisms. Intense few-cycle pulses in the midinfrared selectively excite either the f−f electronic transition of Sm&lt;sup&gt;3+&lt;/sup&gt; or optical phonons. With phonon pumping, a finite time delay exists for the spin reorientation, reflecting the energy transfer between the lattice and 4f system. In contrast, an instantaneous response is found for resonant f−f excitation. This suggests that 4f electronic pumping can directly alter the magnetic anisotropy due to the modification of 4f−3d exchange at femtosecond timescales, without involving lattice thermalization.</dcterms:abstract>
    <dc:creator>Kurihara, Takayuki</dc:creator>
    <dc:creator>Nakajima, Makoto</dc:creator>
    <dcterms:title>Ultrafast Control of Magnetic Anisotropy by Resonant Excitation of 4f Electrons and Phonons in Sm&lt;sub&gt;0.7&lt;/sub&gt;Er&lt;sub&gt;0.3&lt;/sub&gt;FeO&lt;sub&gt;3&lt;/sub&gt;</dcterms:title>
    <dc:creator>Leitenstorfer, Alfred</dc:creator>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:issued>2021</dcterms:issued>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/54880"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/54880/1/Fitzky_2-1cn936ey9ixi74.pdf"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-09-16T07:16:53Z</dcterms:available>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja

Begutachtet

Ja