Molecular-scale dynamics of light-induced spin cross-over in a two-dimensional layer.
Kaushik Bairagi,Olga Iasco,Amandine Bellec,Alexey Kartsev,Dongzhe Li,Jérôme Lagoute,Cyril Chacon,Yann Girard,Sylvie Rousset,Frédéric Miserque,Yannick J. Dappe,Alexander Smogunov,Cyrille Barreteau,Marie-Laure Boillot,Talal Mallah,Vincent Repain +15 more
TLDR
In this paper, a combination of scanning tunnelling microscopy measurements and ab initio calculations allows discriminating unambiguously between two spin states by local vibrational spectroscopy, and a single layer of spin cross-over molecules in contact with a metallic surface displays light-induced collective processes between two ordered mixed spin-state phases with two distinct timescale dynamics.Abstract:
Spin cross-over molecules show the unique ability to switch between two spin states when submitted to external stimuli such as temperature, light or voltage. If controlled at the molecular scale, such switches would be of great interest for the development of genuine molecular devices in spintronics, sensing and for nanomechanics. Unfortunately, up to now, little is known on the behaviour of spin cross-over molecules organized in two dimensions and their ability to show cooperative transformation. Here we demonstrate that a combination of scanning tunnelling microscopy measurements and ab initio calculations allows discriminating unambiguously between both states by local vibrational spectroscopy. We also show that a single layer of spin cross-over molecules in contact with a metallic surface displays light-induced collective processes between two ordered mixed spin-state phases with two distinct timescale dynamics. These results open a way to molecular scale control of two-dimensional spin cross-over layers.read more
Citations
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Emerging trends in spin crossover (SCO) based functional materials and devices
TL;DR: The spin crossover (SCO) complexes can be switched between low (LS) and high spin (HS) magnetic states with the help of an external perturbation and are promising candidates for the realization of molecule-based electronic and spintronic components, such as switching and memory elements as discussed by the authors.
Journal ArticleDOI
Spin Crossover Nanomaterials: From Fundamental Concepts to Devices
TL;DR: In this progress report, a brief overview on the current state-of-the-art of experimental and theoretical studies of nanomaterials displaying spin transition is presented, and detailed analysis and discussions in terms of finite size effects and other phenomena inherent to the reduced size scale are provided.
Journal ArticleDOI
Molecular magnetism, quo vadis? A historical perspective from a coordination chemist viewpoint☆
Jesús Ferrando-Soria,Julia Vallejo,María Castellano,José Martínez-Lillo,Emilio Pardo,Joan Cano,Isabel Castro,Francesc Lloret,Rafael Ruiz-García,Miguel Julve +9 more
TL;DR: Molecular magnetism has travelled a long way from the pioneering studies on electron exchange and double exchange or spin crossover and valence tautomerism in small oligonuclear complexes, from mono-to di-and tetranuclear species, to the current investigations about magnetic anisotropy and spin dynamics or quantum coherence of simple mono- or large polynuclear complexes.
Journal ArticleDOI
Sublimable Spin-Crossover Complexes: From Spin-State Switching to Molecular Devices.
TL;DR: Progress made in the design and synthesis of sublimable functional SCO complexes, on‐surface SCO of molecular and multilayer thick films, and various molecular and thin‐film device architectures based on the sublimably SCO complex are provided.
Journal ArticleDOI
Spintronics: The molecular way.
Andrea Cornia,Pierre Seneor +1 more
TL;DR: Molecular spintronics is an interdisciplinary field at the interface between organic spintronic, molecular magnetism, molecular electronics and quantum computing, which is advancing fast and promises large technological payoffs.
References
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Molecular spin crossover phenomenon: recent achievements and prospects
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Spin-crossover materials : properties and applications
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Journal ArticleDOI
Thermal, pressure and light switchable spin-crossover materials
TL;DR: The different approaches currently being explored in order to achieve multifunctionality in SCO materials are discussed.