Importance of spin current generation and detection by spin injection and the spin Hall effect for lateral spin valve performance

Autoren

A Pfeiffer
RM Reeve
M Kläui

DOI

10.1088/1361-648x/aae5ed

eISSN

1361-648X

ISSN

0953-8984

Ausgabe der Veröffentlichung

46

Zeitschrift

Journal of Physics: Condensed Matter

Online publication date

2018

Paginierung

465802 - 465802

Datum der Veröffentlichung

2018

Status

Published

Herausgeber

IOP Publishing

Herausgeber URL

http://dx.doi.org/10.1088/1361-648x/aae5ed

Datum der Datenerfassung

2020

Titel

Importance of spin current generation and detection by spin injection and the spin Hall effect for lateral spin valve performance

Ausgabe der Zeitschrift

30

Data source: Crossref

Abstract

Lateral spin valves are attractive device geometries where functional spin currents can be generated and detected by various mechanisms, such as spin injection and the direct and the inverse spin Hall effect. To understand the mechanisms behind these effects better, as well as their potential for application in devices, we combine multiple mechanisms in multi-terminal Pt-Py-Cu lateral spin valves: we generate pure spin currents in the copper spin conduit both via the spin Hall effect in platinum and electric spin injection from permalloy and detect signals both via conventional non-local detection and via the inverse spin Hall effect in the same device at variable temperatures. Differences are observed, which we explain by the different spin injection and detection mechanisms, revealing their importance for the temperature dependence, which is not just governed by the spin transport in the conduit as previously claimed. By determining a different sensitivity of the observed effects on the interfaces, we highlight the importance of the exact current path for the device operation.

Addresses

Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany. Graduate School of Excellence Materials Science in Mainz (MAINZ), Staudinger Weg 9, 55128 Mainz, Deutschland.

Autoren

A Pfeiffer
RM Reeve
M Kläui

DOI

10.1088/1361-648x/aae5ed

eISSN

1361-648X

Externe Identifier

PubMed Identifier: 30280698

Funding acknowledgements

Graduate School Materials Science in Mainz (MAINZ): DFG/GSC 266
SPIN+X: Spin in its collective environment (B02): SFB/TRR 173

Open access

false

ISSN

0953-8984

Ausgabe der Veröffentlichung

46

Zeitschrift

Journal of physics. Condensed matter : an Institute of Physics journal

Sprache

eng

Medium

Print-Electronic

Online publication date

2018

Paginierung

465802

Datum der Veröffentlichung

2018

Status

Published

Datum der Datenerfassung

2018

Titel

Importance of spin current generation and detection by spin injection and the spin Hall effect for lateral spin valve performance.

Sub types

Journal Article

Ausgabe der Zeitschrift

30

Data source: Europe PubMed Central

Abstract

Lateral spin valves are attractive device geometries where functional spin currents can be generated and detected by various mechanisms, such as spin injection and the direct and the inverse spin Hall effect. To understand the mechanisms behind these effects better, as well as their potential for application in devices, we combine multiple mechanisms in multi-terminal Pt-Py-Cu lateral spin valves: we generate pure spin currents in the copper spin conduit both via the spin Hall effect in platinum and electric spin injection from permalloy and detect signals both via conventional non-local detection and via the inverse spin Hall effect in the same device at variable temperatures. Differences are observed, which we explain by the different spin injection and detection mechanisms, revealing their importance for the temperature dependence, which is not just governed by the spin transport in the conduit as previously claimed. By determining a different sensitivity of the observed effects on the interfaces, we highlight the importance of the exact current path for the device operation.

Autoren

A Pfeiffer
RM Reeve
M Kläui

Autoren-URL

https://www.ncbi.nlm.nih.gov/pubmed/30280698

DOI

10.1088/1361-648X/aae5ed

eISSN

1361-648X

Ausgabe der Veröffentlichung

46

Zeitschrift

J Phys Condens Matter

Sprache

eng

Country

England

Paginierung

465802

Datum der Veröffentlichung

2018

Status

Published

Titel

Importance of spin current generation and detection by spin injection and the spin Hall effect for lateral spin valve performance.

Sub types

Journal Article

Ausgabe der Zeitschrift

30

Data source: PubMed

Author's licence

InCopyright

Autoren

Alexander Pfeiffer
Robert M Reeve
Mathias Kläui

Hosting institution

Universitätsbibliothek Mainz

Sammlungen

JGU-Publikationen

Resource version

Accepted version

URN

urn:nbn:de:hebis:77-publ-592090

DOI

10.1088/1361-648X/aae5ed

File(s) embargoed

false

Open access

true

ISSN

1361-648X

Ausgabe der Veröffentlichung

46

Zeitschrift

Journal of Physics : Condensed matter

Schlüsselwörter

530 Physik
530 Physics

Sprache

eng

Open access status

Open Access

Paginierung

Art. 465802

Datum der Veröffentlichung

2018

Public URL

https://openscience.ub.uni-mainz.de/handle/20.500.12030/106

Herausgeber

IOP Publ.

Herausgeber URL

http://dx.doi.org/10.1088/1361-648X/aae5ed

Datum der Datenerfassung

2019

Datum, an dem der Datensatz öffentlich gemacht wurde

2019

Zugang

Public

Titel

Importance of spin current generation and detection by spin injection and the spin Hall effect for lateral spin valve performance

Ausgabe der Zeitschrift

30

Files

59209.pdf

Data source: OPENSCIENCE.UB

Importance of spin current generation and detection by spin injection and the spin Hall effect for lateral spin valve performance

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