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Spinterface: Crafting spintronics at the molecular scale

Published online by Cambridge University Press:  15 July 2014

Marta Galbiati ,
Sergio Tatay ,
Clément Barraud ,
Alek V. Dediu ,
Frédéric Petroff ,
Richard Mattana  and
Pierre Seneor
Marta Galbiati
Affiliation:
Unité Mixte de Physique CNRS/Thales and Université Paris-Sud, France; [email protected]
Sergio Tatay
Affiliation:
Chemistry Institute for Molecular Science, University of Valencia, Spain; [email protected]
Clément Barraud
Affiliation:
Laboratoire Matériaux et Phénomènes Quantiques, Université Paris-Diderot, France; [email protected]
Alek V. Dediu
Affiliation:
Institute of Nanostructured Materials, CNR-ISMN, Italy; [email protected]
Frédéric Petroff
Affiliation:
Unité Mixte de Physique CNRS/Thales and Université Paris-Sud, France; [email protected]
Richard Mattana
Affiliation:
Unité Mixte de Physique CNRS/Thales and Université Paris-Sud, France; [email protected]
Pierre Seneor
Affiliation:
Unité Mixte de Physique CNRS/Thales and Université Paris-Sud, France; [email protected]
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Abstract

A number of studies have suggested that molecular materials could offer similar performance as, or even potentially supersede, those of inorganic materials in spintronics devices. Radically new spintronics functionalities, unavailable with conventional inorganic materials, could stem from the interface between ferromagnetic (FM) and molecular materials, giving rise to the so-called “spinterface” field. In this article, we review the fundamental concepts, recent experiments, and perspectives in this fast rising field, where the functionality is brought from the bulk to the ultimate downscaled device: the interface. The article shows how spin-dependent hybridization at the FM metal/molecule interface can lead to induced spin polarization in the molecular orbitals thanks to spin-dependent broadening and energy shifting of the molecular levels. Interfacial spin polarization can then be tailored thanks to chemical interactions. Examples of enhancement and reversal are given, and we highlight how this spin-dependent hybridization opens a new door for the spintronics crafting of multifunctionality through chemical designing and tuning on the molecular scale.

Keywords

spintronicorganicnanoscalemagnetoresistance (transport)
Type
Research Article
Information
MRS Bulletin , Volume 39 , Issue 7: Organic Spintronics , July 2014 , pp. 602 - 607
Copyright
Copyright © Materials Research Society 2014 

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