Evidence for spin to charge conversion in GeTe(111)

GeTe has been predicted to be the father compound of a new class of multifunctional materials, ferroelectric Rashba semiconductors, displaying a coupling between spin-dependent k-splitting and ferroelectricity. In this paper, we report on epitaxial Fe/GeTe(111) heterostructures grown by molecular be...

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Main Authors: C. Rinaldi, J. C. Rojas-Sánchez, R. N. Wang, Y. Fu, S. Oyarzun, L. Vila, S. Bertoli, M. Asa, L. Baldrati, M. Cantoni, J.-M. George, R. Calarco, A. Fert, R. Bertacco
Format: Article
Language:English
Published: AIP Publishing LLC 2016-03-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4941276
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author C. Rinaldi
J. C. Rojas-Sánchez
R. N. Wang
Y. Fu
S. Oyarzun
L. Vila
S. Bertoli
M. Asa
L. Baldrati
M. Cantoni
J.-M. George
R. Calarco
A. Fert
R. Bertacco
author_facet C. Rinaldi
J. C. Rojas-Sánchez
R. N. Wang
Y. Fu
S. Oyarzun
L. Vila
S. Bertoli
M. Asa
L. Baldrati
M. Cantoni
J.-M. George
R. Calarco
A. Fert
R. Bertacco
author_sort C. Rinaldi
collection DOAJ
description GeTe has been predicted to be the father compound of a new class of multifunctional materials, ferroelectric Rashba semiconductors, displaying a coupling between spin-dependent k-splitting and ferroelectricity. In this paper, we report on epitaxial Fe/GeTe(111) heterostructures grown by molecular beam epitaxy. Spin-pumping experiments have been performed in a radio-frequency cavity by pumping a spin current from the Fe layer into GeTe at the Fe ferromagnetic resonance and detecting the transverse charge current originated in the slab due to spin-to-charge conversion. Preliminary experiments indicate that a clear spin to charge conversion exists, thus unveiling the potential of GeTe for spin-orbitronics.
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spelling doaj.art-1b84fa2d7ad44f88ba1e461eff1ebcef2022-12-21T18:21:59ZengAIP Publishing LLCAPL Materials2166-532X2016-03-0143032501032501-610.1063/1.4941276001692APMEvidence for spin to charge conversion in GeTe(111)C. Rinaldi0J. C. Rojas-Sánchez1R. N. Wang2Y. Fu3S. Oyarzun4L. Vila5S. Bertoli6M. Asa7L. Baldrati8M. Cantoni9J.-M. George10R. Calarco11A. Fert12R. Bertacco13Dipartimento di Fisica, Politecnico di Milano, Via Colombo 81, 20133 Milano, ItalyUnité Mixte de Physique, CNRS, Thales, Univ. Paris-Sud, Université Paris-Saclay, 91767 Palaiseau, FrancePaul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, GermanyUniversité Grenoble Alpes and CEA, INAC–SP2M, F-38000 Grenoble, FranceUniversité Grenoble Alpes and CEA, INAC–SP2M, F-38000 Grenoble, FranceUniversité Grenoble Alpes and CEA, INAC–SP2M, F-38000 Grenoble, FranceDipartimento di Fisica, Politecnico di Milano, Via Colombo 81, 20133 Milano, ItalyDipartimento di Fisica, Politecnico di Milano, Via Colombo 81, 20133 Milano, ItalyDipartimento di Fisica, Politecnico di Milano, Via Colombo 81, 20133 Milano, ItalyDipartimento di Fisica, Politecnico di Milano, Via Colombo 81, 20133 Milano, ItalyUnité Mixte de Physique, CNRS, Thales, Univ. Paris-Sud, Université Paris-Saclay, 91767 Palaiseau, FrancePaul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, GermanyUnité Mixte de Physique, CNRS, Thales, Univ. Paris-Sud, Université Paris-Saclay, 91767 Palaiseau, FranceDipartimento di Fisica, Politecnico di Milano, Via Colombo 81, 20133 Milano, ItalyGeTe has been predicted to be the father compound of a new class of multifunctional materials, ferroelectric Rashba semiconductors, displaying a coupling between spin-dependent k-splitting and ferroelectricity. In this paper, we report on epitaxial Fe/GeTe(111) heterostructures grown by molecular beam epitaxy. Spin-pumping experiments have been performed in a radio-frequency cavity by pumping a spin current from the Fe layer into GeTe at the Fe ferromagnetic resonance and detecting the transverse charge current originated in the slab due to spin-to-charge conversion. Preliminary experiments indicate that a clear spin to charge conversion exists, thus unveiling the potential of GeTe for spin-orbitronics.http://dx.doi.org/10.1063/1.4941276
spellingShingle C. Rinaldi
J. C. Rojas-Sánchez
R. N. Wang
Y. Fu
S. Oyarzun
L. Vila
S. Bertoli
M. Asa
L. Baldrati
M. Cantoni
J.-M. George
R. Calarco
A. Fert
R. Bertacco
Evidence for spin to charge conversion in GeTe(111)
APL Materials
title Evidence for spin to charge conversion in GeTe(111)
title_full Evidence for spin to charge conversion in GeTe(111)
title_fullStr Evidence for spin to charge conversion in GeTe(111)
title_full_unstemmed Evidence for spin to charge conversion in GeTe(111)
title_short Evidence for spin to charge conversion in GeTe(111)
title_sort evidence for spin to charge conversion in gete 111
url http://dx.doi.org/10.1063/1.4941276
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