Complex Terahertz and Direct Current Inverse Spin Hall Effect in YIG/Cu1-xIrx Bilayers Across a Wide Concentration Range
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Joel Cramer
- Tom Seifer
- Alexander Kronenberg
- Felix Fuhrmann
- Gerhard Jakob
- Martin Jourdan
- Tobias Kampfrath
- Mathias Klaeui
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000425559700057&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1021/acs.nanolett.7b04538
- eISSN
- 1530-6992
- Externe Identifier
- Clarivate Analytics Document Solution ID: FW8DZ
- PubMed Identifier: 29359566
- ISSN
- 1530-6984
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- NANO LETTERS
- Schlüsselwörter
- Spin Hall effect
- spin Seebeck effect
- ultrafast spin currents
- alloy
- terahertz emission
- Paginierung
- 1064 - 1069
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Titel
- Complex Terahertz and Direct Current Inverse Spin Hall Effect in YIG/Cu<sub>1-<i>x</i></sub>Ir<i><sub>x</sub></i> Bilayers Across a Wide Concentration Range
- Sub types
- Article
- Ausgabe der Zeitschrift
- 18
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Autoren
- Joel Cramer
- Tom Seifert
- Alexander Kronenberg
- Felix Fuhrmann
- Gerhard Jakob
- Martin Jourdan
- Tobias Kampfrath
- Mathias Kläui
- DOI
- 10.1021/acs.nanolett.7b04538
- eISSN
- 1530-6992
- ISSN
- 1530-6984
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Nano Letters
- Sprache
- en
- Online publication date
- 2018
- Paginierung
- 1064 - 1069
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Herausgeber
- American Chemical Society (ACS)
- Herausgeber URL
- http://dx.doi.org/10.1021/acs.nanolett.7b04538
- Datum der Datenerfassung
- 2023
- Titel
- Complex Terahertz and Direct Current Inverse Spin Hall Effect in YIG/Cu<sub>1–<i>x</i></sub>Ir<sub><i>x</i></sub> Bilayers Across a Wide Concentration Range
- Ausgabe der Zeitschrift
- 18
Datenquelle: Crossref
- Abstract
- We measure the inverse spin Hall effect of Cu<sub>1-x</sub>Ir<sub>x</sub> thin films on yttrium iron garnet over a wide range of Ir concentrations (0.05 ⩽ x ⩽ 0.7). Spin currents are triggered through the spin Seebeck effect, either by a continuous (dc) temperature gradient or by ultrafast optical heating of the metal layer. The spin Hall current is detected by electrical contacts or measurement of the emitted terahertz radiation. With both approaches, we reveal the same Ir concentration dependence that follows a novel complex, nonmonotonous behavior as compared to previous studies. For small Ir concentrations a signal minimum is observed, whereas a pronounced maximum appears near the equiatomic composition. We identify this behavior as originating from the interplay of different spin Hall mechanisms as well as a concentration-dependent variation of the integrated spin current density in Cu<sub>1-x</sub>Ir<sub>x</sub>. The coinciding results obtained for dc and ultrafast stimuli provide further support that the spin Seebeck effect extends to terahertz frequencies, thus enabling a transfer of established spintronic measurement schemes into the terahertz regime. Our findings also show that the studied material allows for efficient spin-to-charge conversion even on ultrafast time scales.
- Addresses
- Institute of Physics, Johannes Gutenberg-University Mainz , 55099 Mainz, Germany.
- Autoren
- Joel Cramer
- Tom Seifert
- Alexander Kronenberg
- Felix Fuhrmann
- Gerhard Jakob
- Martin Jourdan
- Tobias Kampfrath
- Mathias Kläui
- DOI
- 10.1021/acs.nanolett.7b04538
- eISSN
- 1530-6992
- Externe Identifier
- PubMed Identifier: 29359566
- Funding acknowledgements
- European Commission: 612759
- Deutsche Forschungsgemeinschaft: SPP 1538
- Samsung: Samsung Global MRAM Initiative
- Deutsche Forschungsgemeinschaft: SFB/TRR 173
- European Commission: 681917
- Deutsche Forschungsgemeinschaft: GSC 266
- Open access
- false
- ISSN
- 1530-6984
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Nano letters
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2018
- Paginierung
- 1064 - 1069
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Datum der Datenerfassung
- 2018
- Titel
- Complex Terahertz and Direct Current Inverse Spin Hall Effect in YIG/Cu<sub>1-x</sub>Ir<sub>x</sub> Bilayers Across a Wide Concentration Range.
- Sub types
- Research Support, Non-U.S. Gov't
- Journal Article
- Ausgabe der Zeitschrift
- 18
Datenquelle: Europe PubMed Central
- Abstract
- We measure the inverse spin Hall effect of Cu1-xIrx thin films on yttrium iron garnet over a wide range of Ir concentrations (0.05 ⩽ x ⩽ 0.7). Spin currents are triggered through the spin Seebeck effect, either by a continuous (dc) temperature gradient or by ultrafast optical heating of the metal layer. The spin Hall current is detected by electrical contacts or measurement of the emitted terahertz radiation. With both approaches, we reveal the same Ir concentration dependence that follows a novel complex, nonmonotonous behavior as compared to previous studies. For small Ir concentrations a signal minimum is observed, whereas a pronounced maximum appears near the equiatomic composition. We identify this behavior as originating from the interplay of different spin Hall mechanisms as well as a concentration-dependent variation of the integrated spin current density in Cu1-xIrx. The coinciding results obtained for dc and ultrafast stimuli provide further support that the spin Seebeck effect extends to terahertz frequencies, thus enabling a transfer of established spintronic measurement schemes into the terahertz regime. Our findings also show that the studied material allows for efficient spin-to-charge conversion even on ultrafast time scales.
- Autoren
- Joel Cramer
- Tom Seifert
- Alexander Kronenberg
- Felix Fuhrmann
- Gerhard Jakob
- Martin Jourdan
- Tobias Kampfrath
- Mathias Kläui
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/29359566
- DOI
- 10.1021/acs.nanolett.7b04538
- eISSN
- 1530-6992
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Nano Lett
- Schlüsselwörter
- Spin Hall effect
- alloy
- spin Seebeck effect
- terahertz emission
- ultrafast spin currents
- Sprache
- eng
- Country
- United States
- Paginierung
- 1064 - 1069
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2018
- Titel
- Complex Terahertz and Direct Current Inverse Spin Hall Effect in YIG/Cu1-xIrx Bilayers Across a Wide Concentration Range.
- Sub types
- Journal Article
- Research Support, Non-U.S. Gov't
- Ausgabe der Zeitschrift
- 18
Datenquelle: PubMed
- Author's licence
- InCopyright
- Autoren
- Joel Cramer
- Tom Seifert
- Alexander Kronenberg
- Felix Fuhrmann
- Gerhard Jakob
- Martin Jourdan
- Tobias Kampfrath
- Mathias Kläui
- Hosting institution
- Universitätsbibliothek Mainz
- Sammlungen
- JGU-Publikationen
- Resource version
- Accepted version
- URN
- urn:nbn:de:hebis:77-publ-591930
- DOI
- 10.1021/acs.nanolett.7b04538
- File(s) embargoed
- false
- Open access
- true
- ISSN
- 1530-6992
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Nano letters
- Schlüsselwörter
- 530 Physik
- 530 Physics
- Sprache
- eng
- Open access status
- Open Access
- Paginierung
- 1064 - 1069
- Datum der Veröffentlichung
- 2018
- Public URL
- https://openscience.ub.uni-mainz.de/handle/20.500.12030/200
- Herausgeber
- ACS Publ.
- Herausgeber URL
- http://dx.doi.org/10.1021/acs.nanolett.7b04538
- Datum der Datenerfassung
- 2019
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2019
- Zugang
- Public
- Titel
- Complex terahertz and direct current inverse spin Hall effect in YIG/Cu1-xIrx bilayers across a wide concentration range
- Ausgabe der Zeitschrift
- 18
Files
59193.pdf
Datenquelle: OPENSCIENCE.UB
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