Topological Spin Solitons for Information Technology

Objective

Present day limitations of information technology based on magnetic materials may be traced to the notion, that all magnetic materials known until recently exhibit conventional, i.e. topologically trivial, forms of magnetic order. Only two years ago the first example of an entirely new form of magnetic order has been discovered, which is composed of topologically stable spin solitons (so called skyrmions) caused by chiral spin interactions. These skyrmions display several exceptional properties, e.g. great stability against perturbations and spin torque effects at ultra-low current densities. Because the underlying chiral interactions exist, in principle, in a very wide range of different settings a comprehensive search for similar spin solitons in other bulk compounds, thin films and especially at interfaces promises major break-throughs for information technology. For instance, the spin transfer torques at ultra-low current densities open an unexpected, new route to high-speed data processing. Further, the topological stability of the solitons may be exploited in non-volatile high-density data storage devices. Finally, the topological Hall effect caused by spin solitons may be used to build a new class of field sensors.

The objectives of this proposal are a systematic search for new forms of magnetic order composed of topologically protected (particle-like) spin solitons in bulk materials driven by chiral interactions. This will establish a new field of magnetic phenomena. We further propose the development of concepts how to exploit specifically the topological aspects of these spin solitons in information technology. The proposed research program comprises state-of-the art materials preparation, in-depth studies of the materials properties using bulk and microscopic probes and advanced theoretical modelling. While the proposed project represents a high-risk effort, it promises a fundamentally new approach to information technology

Fields of science (EuroSciVoc)

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• engineering and technology materials engineering coating and films
• engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering sensors
• natural sciences computer and information sciences data science data processing

Programme(s)

Multi-annual funding programmes that define the EU’s priorities for research and innovation.

• FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)

Topic(s)

Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.

• ERC-AG-PE3 - ERC Advanced Grant - Condensed matter physics

Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

ERC-2011-ADG_20110209
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Funding Scheme

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ERC-AG - ERC Advanced Grant

Host institution

Beneficiaries (1)