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All you ever wanted to know about the present and future of oxide electronics, compiled in a roadmap

Mariona Coll and Josep Fontcuberta from the Institute of Materials Science of Barcelona (ICMAB-CSIC), Fabio Miletto Granozio from the CNR-SPIN (Complesso Universitario di Monte Sant’Angelo, Napoli, Italy) and Nini Pryds from the Department of Energy Storage and Conversion, Technical University of Denmark, have edited the compendium "Towards Oxide Electronics: a Roadmap" published recently in Applied Surface Science. The article counts with 28 contributions from 56 authors of 42 academic institutions and industries from Europe, USA and Japan. The compendium has 93 pages and includes 913 references!

Why this Roadmap?

The paper ''Towards Oxide Electronics: a Roadmap" is published as Final Action Dissemination of the TO-BE COST Action MP1308 (''Towards oxide-based electronics"), a network of European researchers working on the synthesis, analysis, modelling and applications of transition metal oxide thin films. 

"Our hope is that this Roadmap will show to be valuable both as a collective self-analysis of the oxide electronics community, providing an updated picture of the state-of-the-art in the field, and as a dissemination tool, helpful to whoever is willing to spread knowledge about oxide science and to attract towards this exciting field of research new young scientists and further public and private resources." 

The article is published as an Open Access Secial Issue of Applied Surface Science: "Roadmap for Oxide Electronics", pushed forward by the TO-BE EU Cost action and edited by Mariona Coll, Josep Fontcuberta, Nini Pryds and Fabio Miletto Granozio, Volume 482, Pages 1-94 (15 July 2019). 

Why oxides? 

"The introductory paper ''A unique exploration" sharply clarifies that, at the closing of a technological era prevalently dominated by silicon (Si), oxides open the whole periodic table as the playground of tomorrow's materials scientists." 

And not only this; even under minimal chemical variations or at a fixed composition, a wide range of different properties in oxides can be obtained due to the diversity in the structure, thickness, strain, grain boundaries, or interfaces. 

Why Transition Metal oxides?

"Transition Metal oxides present the richest variety of emergent states. New paradigms are needed to tackle their theoretical understanding, as explained in the second introductory contribution (''What theoretical approaches can provide: a perspective on oxides electronics"), to both interpret the experimental data and foresee the properties of not-yet-synthesized materials.

What is the purpose of the article?

The purpose of the paper ''Towards Oxide Electronics: a Roadmap" is to address directly some crucial questions regarding functional oxide thin films: 

  • What is the future role of oxide thin film in modern technologies?
  • How far are oxides from taking this role?
  • Which are the competing technologies?
  • Which are the hurdles presently preventing the diffusion of marketable applications?
  • Which are the chances these hurdles can be overcome?
  • Which are the advancement in synthesis and characterization methods that can help us facing them?

authors roadmap

The authors from the ICMAB are in yellow: M. Coll, J. Fontcuberta, I. Fina, C. Frontera, G. Herranz, F. Sánchez.

What can we find in it?

The compendium is divided into three sections: IntroductionMethods and Applications, preceded by a Preface. 

The Methods part includes insights from theory and modelling, methods of thin film growth including pulsed laser deposition (PLD), molecular beam epitaxy (MBE), atomic layer deposition (ALD), and advanced characterization tools comprising point defect sensitive techniques, at a late stage in development of electron microscopy and thin film structure solving and refining by X-ray diffraction.  

Most of the Applications presented in the paper are expected to impact the fields of Information and Communications Technology (ICT) and Energy. Some of the applications are on data storage and computing, optics and plasmonics, magnonics, energy conversion and harvesting and power electronics. The applications are focused explicitly on thin-film-based applications, and when possible on epitaxial films. 

More information:

M.Coll, J.Fontcuberta et al. Towards Oxide Electronics: a Roadmap.  Applied Surface Science. Volume 482, 15 July 2019, Pages 1-93. 

Download the Open Access paper here. 

COST Countries participating at the COST TO-BE Action

 

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