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Establishing the basic science and technology for Iron-based superconducting electronics applications

Establishing the basic science and technology for Iron-based superconducting electronics applications

Objective

Recent investigations on iron-based superconductors have revealed a lot of similarities to MgB2 and the cuprates, for instance, a multiband nature, high upper critical fields and a short coherence length. Now immediate interest of a new class of materials would be exploring potential electronics applications such as Josephson devices and SQUIDs. In this project, we will address the feasibility of electronics applications by establishing the fundamentals of the iron-based superconductors.
Examining the Josephson effect and SQUIDs, the so-called phase-sensitive experiment, also paves the way to understanding fundamental properties such as order parameters symmetry and energy gap, which is one of the main objective in this project. Investigations by point contact spectroscopy, infrared spectroscopy and transport properties are also conducted within the same frame of this work. Such fundamental studies may find unique physical properties, which lead to exploring new kinds of devices and applications. Since the iron-based superconductors are multi-band natures, comparative studies to MgB2 are also carried out. The obtained results are interpreted based on modelling and theory, which will also guide for designing better junctions.
We will investigate various kinds of the iron-based superconducting films, involving K-doped SrFe2As2 (Sr-122), Co-doped BaFe2As2 (Ba-122), Te containing FeSe (11), F-doped NdFeAsO (Nd-1111) and LaFeAsO (La-1111). To date, the in-situ growth of both K-doped Sr-122 and F-doped Nd-1111 have been prepared by molecular beam epitaxy, MBE, only in this consortium. High quality, Co-doped Ba-122 and Te containing 11 epitaxial films by pulsed laser deposition are usable for this project, since the deposition condition for both films have been almost optimized by the individual groups within this consortium.
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Coordinator

LEIBNIZ-INSTITUT FUER FESTKOERPER- UND WERKSTOFFFORSCHUNG DRESDEN E.V.

Address

Helmholtzstrasse 20
01069 Dresden

Germany

Activity type

Research Organisations

EU Contribution

€ 431 306

Administrative Contact

Birgit Benz (Ms.)

Participants (5)

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FRIEDRICH-SCHILLER-UNIVERSITAT JENA

Germany

EU Contribution

€ 243 440

UNIVERZITA KOMENSKEHO V BRATISLAVE

Slovakia

EU Contribution

€ 195 000

POLITECNICO DI TORINO

Italy

EU Contribution

€ 241 600

CONSIGLIO NAZIONALE DELLE RICERCHE

Italy

EU Contribution

€ 287 110

UNIVERSITEIT TWENTE

Netherlands

EU Contribution

€ 267 155

Project information

Grant agreement ID: 283141

Status

Closed project

  • Start date

    1 October 2011

  • End date

    30 September 2014

Funded under:

FP7-NMP

  • Overall budget:

    € 2 169 814

  • EU contribution

    € 1 665 611

Coordinated by:

LEIBNIZ-INSTITUT FUER FESTKOERPER- UND WERKSTOFFFORSCHUNG DRESDEN E.V.

Germany