Terahertz Spin-to-Charge Conversion by Interfacial Skew Scattering in Metallic Bilayers
- Publication type:
- Journal article
- Metadata:
-
- Autoren
- Oliver Gueckstock
- Lukas Nadvornik
- Martin Gradhand
- Tom Sebastian Seifert
- Genaro Bierhance
- Reza Rouzegar
- Martin Wolf
- Mehran Vafaee
- Joel Cramer
- Maria Andromachi Syskaki
- Georg Woltersdorf
- Ingrid Mertig
- Gerhard Jakob
- Mathias Klaeui
- Tobias Kampfrath
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000612299900001&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1002/adma.202006281
- eISSN
- 1521-4095
- Externe Identifier
- Clarivate Analytics Document Solution ID: QS8TL
- PubMed Identifier: 33506577
- ISSN
- 0935-9648
- Ausgabe der Veröffentlichung
- 9
- Zeitschrift
- ADVANCED MATERIALS
- Schlüsselwörter
- interface
- skew scattering
- spin-to-charge conversion
- terahertz emission spectroscopy
- Artikelnummer
- ARTN 2006281
- Datum der Veröffentlichung
- 2021
- Status
- Published
- Titel
- Terahertz Spin-to-Charge Conversion by Interfacial Skew Scattering in Metallic Bilayers
- Sub types
- Article
- Ausgabe der Zeitschrift
- 33
Data source: Web of Science (Lite)
- Other metadata sources:
-
- Abstract
- <jats:title>Abstract</jats:title><jats:p>The efficient conversion of spin to charge transport and vice versa is of major relevance for the detection and generation of spin currents in spin‐based electronics. Interfaces of heterostructures are known to have a marked impact on this process. Here, terahertz (THz) emission spectroscopy is used to study ultrafast spin‐to‐charge‐current conversion (S2C) in about 50 prototypical F|N bilayers consisting of a ferromagnetic layer F (e.g., Ni<jats:sub>81</jats:sub>Fe<jats:sub>19</jats:sub>, Co, or Fe) and a nonmagnetic layer N with strong (Pt) or weak (Cu and Al) spin‐orbit coupling. Varying the structure of the F/N interface leads to a drastic change in the amplitude and even inversion of the polarity of the THz charge current. Remarkably, when N is a material with small spin Hall angle, a dominant interface contribution to the ultrafast charge current is found. Its magnitude amounts to as much as about 20% of that found in the F|Pt reference sample. Symmetry arguments and first‐principles calculations strongly suggest that the interfacial S2C arises from skew scattering of spin‐polarized electrons at interface imperfections. The results highlight the potential of skew scattering for interfacial S2C and propose a promising route to enhanced S2C by tailored interfaces at all frequencies from DC to terahertz.</jats:p>
- Autoren
- Oliver Gueckstock
- Lukáš Nádvorník
- Martin Gradhand
- Tom Sebastian Seifert
- Genaro Bierhance
- Reza Rouzegar
- Martin Wolf
- Mehran Vafaee
- Joel Cramer
- Maria Andromachi Syskaki
- Georg Woltersdorf
- Ingrid Mertig
- Gerhard Jakob
- Mathias Kläui
- Tobias Kampfrath
- DOI
- 10.1002/adma.202006281
- eISSN
- 1521-4095
- ISSN
- 0935-9648
- Ausgabe der Veröffentlichung
- 9
- Zeitschrift
- Advanced Materials
- Sprache
- en
- Online publication date
- 2021
- Datum der Veröffentlichung
- 2021
- Status
- Published
- Herausgeber
- Wiley
- Herausgeber URL
- http://dx.doi.org/10.1002/adma.202006281
- Datum der Datenerfassung
- 2023
- Titel
- Terahertz Spin‐to‐Charge Conversion by Interfacial Skew Scattering in Metallic Bilayers
- Ausgabe der Zeitschrift
- 33
Data source: Crossref
- Abstract
- The efficient conversion of spin to charge transport and vice versa is of major relevance for the detection and generation of spin currents in spin-based electronics. Interfaces of heterostructures are known to have a marked impact on this process. Here, terahertz (THz) emission spectroscopy is used to study ultrafast spin-to-charge-current conversion (S2C) in about 50 prototypical F|N bilayers consisting of a ferromagnetic layer F (e.g., Ni<sub>81</sub> Fe<sub>19</sub> , Co, or Fe) and a nonmagnetic layer N with strong (Pt) or weak (Cu and Al) spin-orbit coupling. Varying the structure of the F/N interface leads to a drastic change in the amplitude and even inversion of the polarity of the THz charge current. Remarkably, when N is a material with small spin Hall angle, a dominant interface contribution to the ultrafast charge current is found. Its magnitude amounts to as much as about 20% of that found in the F|Pt reference sample. Symmetry arguments and first-principles calculations strongly suggest that the interfacial S2C arises from skew scattering of spin-polarized electrons at interface imperfections. The results highlight the potential of skew scattering for interfacial S2C and propose a promising route to enhanced S2C by tailored interfaces at all frequencies from DC to terahertz.
- Addresses
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
- Autoren
- Oliver Gueckstock
- Lukáš Nádvorník
- Martin Gradhand
- Tom Sebastian Seifert
- Genaro Bierhance
- Reza Rouzegar
- Martin Wolf
- Mehran Vafaee
- Joel Cramer
- Maria Andromachi Syskaki
- Georg Woltersdorf
- Ingrid Mertig
- Gerhard Jakob
- Mathias Kläui
- Tobias Kampfrath
- DOI
- 10.1002/adma.202006281
- eISSN
- 1521-4095
- Externe Identifier
- PubMed Identifier: 33506577
- Funding acknowledgements
- collaborative research center: A01
- Ultrafast spin dynamics: A05
- collaborative research center: SFB TRR 173
- ERC H2020: 856538
- s-NEBULA: 863155
- collaborative research center: B02
- Ultrafast spin dynamics: B04
- Ultrafast spin dynamics: B02
- collaborative research center: SFB TRR 227
- collaborative research center: 268565370
- Ultrafast spin dynamics: B01
- ERC H2020: 681917
- FET projects SKYTOP: 824123
- MSCA ITN MagnEfi: 860060
- Ultrafast spin dynamics: B07
- Open access
- false
- ISSN
- 0935-9648
- Ausgabe der Veröffentlichung
- 9
- Zeitschrift
- Advanced materials (Deerfield Beach, Fla.)
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2021
- Paginierung
- e2006281
- Datum der Veröffentlichung
- 2021
- Status
- Published
- Publisher licence
- CC BY
- Datum der Datenerfassung
- 2021
- Titel
- Terahertz Spin-to-Charge Conversion by Interfacial Skew Scattering in Metallic Bilayers.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 33
Data source: Europe PubMed Central
- Abstract
- The efficient conversion of spin to charge transport and vice versa is of major relevance for the detection and generation of spin currents in spin-based electronics. Interfaces of heterostructures are known to have a marked impact on this process. Here, terahertz (THz) emission spectroscopy is used to study ultrafast spin-to-charge-current conversion (S2C) in about 50 prototypical F|N bilayers consisting of a ferromagnetic layer F (e.g., Ni81 Fe19 , Co, or Fe) and a nonmagnetic layer N with strong (Pt) or weak (Cu and Al) spin-orbit coupling. Varying the structure of the F/N interface leads to a drastic change in the amplitude and even inversion of the polarity of the THz charge current. Remarkably, when N is a material with small spin Hall angle, a dominant interface contribution to the ultrafast charge current is found. Its magnitude amounts to as much as about 20% of that found in the F|Pt reference sample. Symmetry arguments and first-principles calculations strongly suggest that the interfacial S2C arises from skew scattering of spin-polarized electrons at interface imperfections. The results highlight the potential of skew scattering for interfacial S2C and propose a promising route to enhanced S2C by tailored interfaces at all frequencies from DC to terahertz.
- Autoren
- Oliver Gueckstock
- Lukáš Nádvorník
- Martin Gradhand
- Tom Sebastian Seifert
- Genaro Bierhance
- Reza Rouzegar
- Martin Wolf
- Mehran Vafaee
- Joel Cramer
- Maria Andromachi Syskaki
- Georg Woltersdorf
- Ingrid Mertig
- Gerhard Jakob
- Mathias Kläui
- Tobias Kampfrath
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/33506577
- DOI
- 10.1002/adma.202006281
- eISSN
- 1521-4095
- Funding acknowledgements
- Ultrafast spin dynamics: B01
- Ultrafast spin dynamics: B02
- Ultrafast spin dynamics: B04
- Ultrafast spin dynamics: B07
- Ultrafast spin dynamics: A05
- collaborative research center: SFB TRR 227
- collaborative research center: SFB TRR 173
- collaborative research center: A01
- collaborative research center: B02
- collaborative research center: 268565370
- ERC H2020: 681917
- ERC H2020: 856538
- MSCA ITN MagnEfi: 860060
- FET projects SKYTOP: 824123
- s-NEBULA: 863155
- Ausgabe der Veröffentlichung
- 9
- Zeitschrift
- Adv Mater
- Schlüsselwörter
- interface
- skew scattering
- spin-to-charge conversion
- terahertz emission spectroscopy
- Sprache
- eng
- Country
- Germany
- Paginierung
- e2006281
- Datum der Veröffentlichung
- 2021
- Status
- Published
- Titel
- Terahertz Spin-to-Charge Conversion by Interfacial Skew Scattering in Metallic Bilayers.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 33
Data source: PubMed
- Author's licence
- CC-BY
- Autoren
- Oliver Gueckstock
- Lukáš Nádvorník
- Martin Gradhand
- Tom Sebastian Seifert
- Genaro Bierhance
- Reza Rouzegar
- Martin Wolf
- Mehran Vafaee
- Joel Cramer
- Maria Andromachi Syskaki
- Georg Woltersdorf
- Ingrid Mertig
- Gerhard Jakob
- Mathias Kläui
- Tobias Kampfrath
- Hosting institution
- Universitätsbibliothek Mainz
- Sammlungen
- JGU-Publikationen
- Resource version
- Published version
- DOI
- 10.1002/adma.202006281
- File(s) embargoed
- false
- Open access
- true
- ISSN
- 0935-9648
- Ausgabe der Veröffentlichung
- 9
- Zeitschrift
- Advanced materials
- Schlüsselwörter
- 530 Physik
- 530 Physics
- Sprache
- eng
- Open access status
- Open Access
- Paginierung
- 2006281
- Datum der Veröffentlichung
- 2021
- Public URL
- https://openscience.ub.uni-mainz.de/handle/20.500.12030/5718
- Herausgeber
- Wiley-VCH
- Herausgeber URL
- https://doi.org/10.1002/adma.202006281
- Datum der Datenerfassung
- 2021
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2021
- Zugang
- Public
- Titel
- Terahertz spin-to-charge conversion by interfacial skew scattering in metallic bilayers
- Ausgabe der Zeitschrift
- 33
Files
kläui_mathias-terahertz_spin-20210323130030539.pdf
Data source: OPENSCIENCE.UB
- Beziehungen:
- Property of