H2020Individual fellowship2017–2020

SUPERSPIN · Superconducting Spintronics for Highly Energery Efficient Cryogenic Memory Applications

Horizon 2020 — Marie Skłodowska-Curie Actions

Duration
2017-06-01 → 2020-05-31
EU contribution
€251,858
Participants
2
Scheme
MSCA-IF-GF

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Results in brief

Superconducting Spintronics for Highly Energery Efficient Cryogenic Memory Applications

The dissipation of heat in traditional silicon (CMOS) based electronics is a major source of inefficiency and environmental impact. Superconductors are, by nature, dissipationless. To achieve the promised efficiency increases of these computers requires a new type of low-temperature memory architecture. SUPERSPIN will take advantage of spin-polarised Cooper pairs for the promising application of cryogenic memory, where information can be stored by either the state of the system (superconducting or normal), or in the phase difference between superconductors across a Josephson junction. The conclusions of the action: The scientific achievements of the project have studied in great detail the role of spin orbit coupling on a triplet state in a Josephson junction. The second scientific conclusion is the study of alternative base superconducting electrodes for Josephson devices, where the improved structural property of lower surface roughness greatly improves the junction’s characteristics. Finally, the incoming phase demonstrated PMA materials for cryogenic memory application. The scientific advances are significant advances beyond the state-of-the-art and have led to the publication of 10 peer reviewed journal articles. Beyond the scientific achievements of the project, knowledge transfer has successfully allowed the fellow to implement new techniques in both host intuitions. The fellow has used his world leading knowledge of x-ray and neutron scattering to implement new experimental techniques in the Birge group at MSU. The MSU group itself is recognized as world leading on production of superconducting devices, and the fellow has successfully implemented the device fabrication procedure to the Leeds group. The fellows career prospects have been greatly enhanced through participation in the fellowship and career development plan. In particular, the fellow has attended career workshops and had networking opportunities at major international conferences. It is the intention of the fellow to submit further research funding applications to continue his career in this field.

Data: CORDIS, © European Union

Project objective

The dissipation of heat in traditional silicon (CMOS) based electronics is a major source of inefficiency and environmental impact. Superconductors are, by nature, dissipationless. Computing via logic circuits based on Josephson junctions is also faster, but the largest remaining problem is the lagging development of low-temperature memory. To achieve the promised efficiency increases of these computers requires a new type of low-temperature memory architecture.Traditionally considered competing phenomena, when artificially juxtaposed a wealth of physics at the interface between superconductors and ferromagnets emerges. Spin-polarised Cooper pairs are capable of surviving inside a ferromagnet over much longer distances than the regular (spin-singlet, anti-parallel) pairs. This new type of Cooper pair is the building block for super-spintronics; leading to a dissipationless spin-current combined with spintronic devices.Europe risks being left behind by large US research efforts such as the IARPA C3 programme. SUPERSPIN will take advantage of spin-polarised Cooper pairs for the promising application of cryogenic memory, where information can be stored by either the state of the system (superconducting or normal), or in the phase difference between superconductors across a Josephson junction. The outgoing host Prof. Birge is the world leading expert in ferromagnetic Josephson junction devices for cryogenic memory application. The fellow will be fully integrated in his IARPA C3 funded laboratories and through the SUPERSPIN programme, of exploring candidate materials systems and developing prototypical devices, will acquire all the skills and knowledge necessary to develop these exciting advances to application the E.U. during the return phase of the project.Through SUPERSPIN, the fellow will broaden his scientific background, develop complementary knowledge in new areas, bring new knowledge from the TC host to the E.U. and increase his chances of success in academia

Original text from CORDIS.

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Data: CORDIS, © European Union