Subpicosecond metamagnetic phase transition in FeRh driven by non-equilibrium electron dynamics

Publication type:
Journal article
Metadata:
Autoren
  • Federico Pressacco
  • Davide Sangalli
  • Vojtech Uhlir
  • Dmytro Kutnyakhov
  • Jon Ander Arregi
  • Steinn Ymir Agustsson
  • Guenter Brenner
  • Harald Redlin
  • Michael Heber
  • Dmitry Vasilyev
  • Jure Demsar
  • Gerd Schoenhense
  • Matteo Gatti
  • Andrea Marini
  • Wilfried Wurth
  • Fausto Sirotti
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000688006200002&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1038/s41467-021-25347-3
eISSN
2041-1723
Externe Identifier
  • Clarivate Analytics Document Solution ID: UE6OX
  • PubMed Identifier: 34429414
Ausgabe der Veröffentlichung
1
Zeitschrift
NATURE COMMUNICATIONS
Artikelnummer
ARTN 5088
Datum der Veröffentlichung
2021
Status
Published
Titel
Subpicosecond metamagnetic phase transition in FeRh driven by non-equilibrium electron dynamics
Sub types
  • Article
Ausgabe der Zeitschrift
12

Data source: Web of Science (Lite)

Other metadata sources:
Abstract
<jats:title>Abstract</jats:title><jats:p>Femtosecond light-induced phase transitions between different macroscopic orders provide the possibility to tune the functional properties of condensed matter on ultrafast timescales. In first-order phase transitions, transient non-equilibrium phases and inherent phase coexistence often preclude non-ambiguous detection of transition precursors and their temporal onset. Here, we present a study combining time-resolved photoelectron spectroscopy and ab-initio electron dynamics calculations elucidating the transient subpicosecond processes governing the photoinduced generation of ferromagnetic order in antiferromagnetic FeRh. The transient photoemission spectra are accounted for by assuming that not only the occupation of electronic states is modified during the photoexcitation process. Instead, the photo-generated non-thermal distribution of electrons modifies the electronic band structure. The ferromagnetic phase of FeRh, characterized by a minority band near the Fermi energy, is established 350 ± 30 fs after the laser excitation. Ab-initio calculations indicate that the phase transition is initiated by a photoinduced Rh-to-Fe charge transfer.</jats:p>
Autoren
  • Federico Pressacco
  • Davide Sangalli
  • Vojtěch Uhlíř
  • Dmytro Kutnyakhov
  • Jon Ander Arregi
  • Steinn Ymir Agustsson
  • Günter Brenner
  • Harald Redlin
  • Michael Heber
  • Dmitry Vasilyev
  • Jure Demsar
  • Gerd Schönhense
  • Matteo Gatti
  • Andrea Marini
  • Wilfried Wurth
  • Fausto Sirotti
DOI
10.1038/s41467-021-25347-3
eISSN
2041-1723
Ausgabe der Veröffentlichung
1
Zeitschrift
Nature Communications
Sprache
en
Artikelnummer
5088
Online publication date
2021
Status
Published online
Herausgeber
Springer Science and Business Media LLC
Herausgeber URL
http://dx.doi.org/10.1038/s41467-021-25347-3
Datum der Datenerfassung
2023
Titel
Subpicosecond metamagnetic phase transition in FeRh driven by non-equilibrium electron dynamics
Ausgabe der Zeitschrift
12

Data source: Crossref

Abstract
Femtosecond light-induced phase transitions between different macroscopic orders provide the possibility to tune the functional properties of condensed matter on ultrafast timescales. In first-order phase transitions, transient non-equilibrium phases and inherent phase coexistence often preclude non-ambiguous detection of transition precursors and their temporal onset. Here, we present a study combining time-resolved photoelectron spectroscopy and ab-initio electron dynamics calculations elucidating the transient subpicosecond processes governing the photoinduced generation of ferromagnetic order in antiferromagnetic FeRh. The transient photoemission spectra are accounted for by assuming that not only the occupation of electronic states is modified during the photoexcitation process. Instead, the photo-generated non-thermal distribution of electrons modifies the electronic band structure. The ferromagnetic phase of FeRh, characterized by a minority band near the Fermi energy, is established 350 ± 30 fs after the laser excitation. Ab-initio calculations indicate that the phase transition is initiated by a photoinduced Rh-to-Fe charge transfer.
Addresses
  • The Hamburg Centre for Ultrafast Imaging, Hamburg University, Hamburg, Germany. federico.pressacco@desy.de.
Autoren
  • Federico Pressacco
  • Davide Sangalli
  • Vojtěch Uhlíř
  • Dmytro Kutnyakhov
  • Jon Ander Arregi
  • Steinn Ymir Agustsson
  • Günter Brenner
  • Harald Redlin
  • Michael Heber
  • Dmitry Vasilyev
  • Jure Demsar
  • Gerd Schönhense
  • Matteo Gatti
  • Andrea Marini
  • Wilfried Wurth
  • Fausto Sirotti
DOI
10.1038/s41467-021-25347-3
eISSN
2041-1723
Externe Identifier
  • PubMed Identifier: 34429414
  • PubMed Central ID: PMC8384879
Open access
true
ISSN
2041-1723
Ausgabe der Veröffentlichung
1
Zeitschrift
Nature communications
Sprache
eng
Medium
Electronic
Online publication date
2021
Open access status
Open Access
Paginierung
5088
Datum der Veröffentlichung
2021
Status
Published
Publisher licence
CC BY
Datum der Datenerfassung
2021
Titel
Subpicosecond metamagnetic phase transition in FeRh driven by non-equilibrium electron dynamics.
Sub types
  • research-article
  • Journal Article
Ausgabe der Zeitschrift
12

Files

https://www.nature.com/articles/s41467-021-25347-3.pdf https://europepmc.org/articles/PMC8384879?pdf=render

Data source: Europe PubMed Central

Abstract
Femtosecond light-induced phase transitions between different macroscopic orders provide the possibility to tune the functional properties of condensed matter on ultrafast timescales. In first-order phase transitions, transient non-equilibrium phases and inherent phase coexistence often preclude non-ambiguous detection of transition precursors and their temporal onset. Here, we present a study combining time-resolved photoelectron spectroscopy and ab-initio electron dynamics calculations elucidating the transient subpicosecond processes governing the photoinduced generation of ferromagnetic order in antiferromagnetic FeRh. The transient photoemission spectra are accounted for by assuming that not only the occupation of electronic states is modified during the photoexcitation process. Instead, the photo-generated non-thermal distribution of electrons modifies the electronic band structure. The ferromagnetic phase of FeRh, characterized by a minority band near the Fermi energy, is established 350 ± 30 fs after the laser excitation. Ab-initio calculations indicate that the phase transition is initiated by a photoinduced Rh-to-Fe charge transfer.
Date of acceptance
2021
Autoren
  • Federico Pressacco
  • Davide Sangalli
  • Vojtěch Uhlíř
  • Dmytro Kutnyakhov
  • Jon Ander Arregi
  • Steinn Ymir Agustsson
  • Günter Brenner
  • Harald Redlin
  • Michael Heber
  • Dmitry Vasilyev
  • Jure Demsar
  • Gerd Schönhense
  • Matteo Gatti
  • Andrea Marini
  • Wilfried Wurth
  • Fausto Sirotti
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/34429414
DOI
10.1038/s41467-021-25347-3
eISSN
2041-1723
Externe Identifier
  • PubMed Central ID: PMC8384879
Ausgabe der Veröffentlichung
1
Zeitschrift
Nat Commun
Sprache
eng
Country
England
Paginierung
5088
PII
10.1038/s41467-021-25347-3
Datum der Veröffentlichung
2021
Status
Published online
Titel
Subpicosecond metamagnetic phase transition in FeRh driven by non-equilibrium electron dynamics.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
12

Data source: PubMed

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