Autoren:	Pfeiffer, Alexander Reeve, Robert M. Elphick, Kevin Hirohata, Atsufumi Kläui, Mathias
Titel:	Revealing the importance of interfaces for pure spin current transport
Online-Publikationsdatum:	20-Aug-2021
Erscheinungsdatum:	2021
Sprache des Dokuments:	Englisch
Zusammenfassung/Abstract:	Spin transport phenomena underpin an extensive range of spintronic effects. In particular spin transport across interfaces occurs in most device concepts, but is so far poorly understood. As interface properties strongly impact spin transport, one needs to characterize and correlate them to the fabrication method. Here we investigate pure spin current transport across interfaces and connect this with imaging of the interfaces. We study the detection of pure spin currents via the inverse spin Hall effect in Pt and the related spin current absorption by Pt in Py-Cu-Pt lateral spin valves. Depending on the fabrication process, we either find a large (inverse) spin Hall effect signal and low spin absorption by Pt or vice versa and a similar effect is seen also for spin current absorption in CoFe-Cu-based devices. We explain these counterintuitive results by the fabrication-induced varying quality of the interfaces, which is directly revealed via a special scanning electron microscopy technique for interface imaging and correlated to the spin transport.
DDC-Sachgruppe:	530 Physik 530 Physics
Veröffentlichende Institution:	Johannes Gutenberg-Universität Mainz
Organisationseinheit:	FB 08 Physik, Mathematik u. Informatik
Veröffentlichungsort:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-6287
Version:	Published version
Publikationstyp:	Zeitschriftenaufsatz
Weitere Angaben zur Dokumentart:	Scientific article
Nutzungsrechte:	CC BY
Informationen zu den Nutzungsrechten:	https://creativecommons.org/licenses/by/4.0/
Zeitschrift:	Physical review research 3 2
Seitenzahl oder Artikelnummer:	023110
Verlag:	American Physical Society
Verlagsort:	College Park, MD
Erscheinungsdatum:	2021
ISSN:	2643-1564
URL der Originalveröffentlichung:	https://doi.org/10.1103/PhysRevResearch.3.023110
DOI der Originalveröffentlichung:	10.1103/PhysRevResearch.3.023110
Enthalten in den Sammlungen:	JGU-Publikationen