Vertical Tunnel Junction Embedding a Spin Crossover Molecular Film

Abstract Thin films of a molecular spin crossover (SCO) Iron(II) complex featuring a high transition temperature are grown by sublimation in high vacuum on TSAu and investigated by X‐ray and UV photoelectron spectroscopies. Temperature‐dependent studies demonstrate that the thermally induced spin cr...

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Main Authors: Lorenzo Poggini, Mathieu Gonidec, Juan H. González‐Estefan, Gilles Pecastaings, Benoît Gobaut, Patrick Rosa
Format: Article
Language:English
Published: Wiley-VCH 2018-12-01
Series:Advanced Electronic Materials
Subjects:
Online Access:https://doi.org/10.1002/aelm.201800204
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author Lorenzo Poggini
Mathieu Gonidec
Juan H. González‐Estefan
Gilles Pecastaings
Benoît Gobaut
Patrick Rosa
author_facet Lorenzo Poggini
Mathieu Gonidec
Juan H. González‐Estefan
Gilles Pecastaings
Benoît Gobaut
Patrick Rosa
author_sort Lorenzo Poggini
collection DOAJ
description Abstract Thin films of a molecular spin crossover (SCO) Iron(II) complex featuring a high transition temperature are grown by sublimation in high vacuum on TSAu and investigated by X‐ray and UV photoelectron spectroscopies. Temperature‐dependent studies demonstrate that the thermally induced spin crossover behavior is preserved in thin films. A large‐area ultrathin switchable spin crossover molecular vertical tunnel junction with top electrodes of the liquid eutectic of gallium and indium, for which the spin‐state switching of the films induces a two orders of magnitude change in the tunneling current density flowing through the junction, is reported here. The results on large‐area junctions, rationalized by density functional theory calculations, demonstrate the high potential of SCO‐based switchable molecular junctions as functional devices.
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spelling doaj.art-3d78b25bbc2e42b9a73e7320f42188972023-10-07T03:29:12ZengWiley-VCHAdvanced Electronic Materials2199-160X2018-12-01412n/an/a10.1002/aelm.201800204Vertical Tunnel Junction Embedding a Spin Crossover Molecular FilmLorenzo Poggini0Mathieu Gonidec1Juan H. González‐Estefan2Gilles Pecastaings3Benoît Gobaut4Patrick Rosa5CNRS ICMCB UMR 5026 F‐33600 Pessac FranceCNRS ICMCB UMR 5026 F‐33600 Pessac FranceCNRS ICMCB UMR 5026 F‐33600 Pessac FranceUniversité de Bordeaux‐INP, LCPO‐CNRS UMR 5629 F‐33607 Pessac, Cedex FranceSynchrotron SOLEIL L'orme des Merisiers Saint‐Aubin‐BP48 F‐91192 Gif‐sur‐Yvette Cedex FranceCNRS ICMCB UMR 5026 F‐33600 Pessac FranceAbstract Thin films of a molecular spin crossover (SCO) Iron(II) complex featuring a high transition temperature are grown by sublimation in high vacuum on TSAu and investigated by X‐ray and UV photoelectron spectroscopies. Temperature‐dependent studies demonstrate that the thermally induced spin crossover behavior is preserved in thin films. A large‐area ultrathin switchable spin crossover molecular vertical tunnel junction with top electrodes of the liquid eutectic of gallium and indium, for which the spin‐state switching of the films induces a two orders of magnitude change in the tunneling current density flowing through the junction, is reported here. The results on large‐area junctions, rationalized by density functional theory calculations, demonstrate the high potential of SCO‐based switchable molecular junctions as functional devices.https://doi.org/10.1002/aelm.201800204eutectic gallium indium alloy (EGaIn)spin crossover (SCO)thin filmstunnel junctions
spellingShingle Lorenzo Poggini
Mathieu Gonidec
Juan H. González‐Estefan
Gilles Pecastaings
Benoît Gobaut
Patrick Rosa
Vertical Tunnel Junction Embedding a Spin Crossover Molecular Film
Advanced Electronic Materials
eutectic gallium indium alloy (EGaIn)
spin crossover (SCO)
thin films
tunnel junctions
title Vertical Tunnel Junction Embedding a Spin Crossover Molecular Film
title_full Vertical Tunnel Junction Embedding a Spin Crossover Molecular Film
title_fullStr Vertical Tunnel Junction Embedding a Spin Crossover Molecular Film
title_full_unstemmed Vertical Tunnel Junction Embedding a Spin Crossover Molecular Film
title_short Vertical Tunnel Junction Embedding a Spin Crossover Molecular Film
title_sort vertical tunnel junction embedding a spin crossover molecular film
topic eutectic gallium indium alloy (EGaIn)
spin crossover (SCO)
thin films
tunnel junctions
url https://doi.org/10.1002/aelm.201800204
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AT juanhgonzalezestefan verticaltunneljunctionembeddingaspincrossovermolecularfilm
AT gillespecastaings verticaltunneljunctionembeddingaspincrossovermolecularfilm
AT benoitgobaut verticaltunneljunctionembeddingaspincrossovermolecularfilm
AT patrickrosa verticaltunneljunctionembeddingaspincrossovermolecularfilm