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High temperature superconductivity and the Catch-22 conundrum

Total Cost €


EC-Contrib. €






 CATCH-22 project word cloud

Explore the words cloud of the CATCH-22 project. It provides you a very rough idea of what is the project "CATCH-22" about.

universal    manifestations    drives    time    thin    averaged    leads    strength    pseudogap    turn    latter    precursor    dome    model    scatters    phenomenological    origins    unify    electrons    fate    ground    samples    pave    laser    mysteries    electronic    successful    nature    catch    elusive    light    it    mechanism    thermal    thz    20th    optimally    logical    central    photoemission    phases    cuprates    incoherent    ultimately    remained    binds    principles    itself    bounds    superconductors    diffusivity    metal    spectroscopy    superconducting    frontier    cuprate    conductivity    incognita    paradox    resolved    first    promotes    doped    pulses    hailed    discoveries    attempt    fact    superconductivity    function    seek    search    words    governing    interaction    manifests    metals    pairing    terra    scattering    conundrum    strange    origin    incoherence    metallic    ultra    22    mystery    edge    explore    momentum    combine    resolve    diminishes    destroys    temperature    electrical    parts    pairs    century    intertwined    magnetic    intense    hidden    coherent   

Project "CATCH-22" data sheet

The following table provides information about the project.


Organization address
postcode: BS8 1QU

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Total cost 2˙495˙628 €
 EC max contribution 2˙495˙628 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2018-ADG
 Funding Scheme ERC-ADG
 Starting year 2019
 Duration (year-month-day) from 2019-10-01   to  2024-09-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITY OF BRISTOL UK (BRISTOL) coordinator 1˙631˙955.00


 Project objective

CATCH-22 sets out to resolve the mystery of the cuprate high temperature superconductors. Hailed as one of the major discoveries of the 20th Century, its central mysteries – the pairing mechanism, the origin of the ‘pseudogap’ and the nature of the ‘strange metal’ phase, have remained elusive for over 30 years. Typically, what scatters electrons also binds them into pairs, and in the cuprates, the strong pairing interaction manifests itself in the strange metal phase as intense scattering, so strong in fact that it drives the electronic states required for pairing incoherent. In other words, what first promotes high temperature superconductivity ultimately destroys it! This logical paradox is the Catch-22 conundrum.

CATCH-22, the program, comprises three parts. Part 1 will explore the fate of electronic states within the strange metal phase by studying how the metallic response diminishes across universal bounds, both as a function of temperature and interaction strength, through momentum-averaged electrical conductivity and thermal diffusivity studies and momentum-resolved photoemission spectroscopy. Part 2 will seek to access the ground state of optimally doped cuprates for the first time, by applying intense current and laser pulses to ultra-thin samples in a high magnetic field. The latter, if successful, will open up a new frontier in which intense THz light and intense magnetic fields combine to access the terra incognita of hidden phases. Finally, Part 3 will explore the origins of the strange metal at the edge of the superconducting dome and search for manifestations of incoherence in other strange metals in an attempt to unify the governing principles. Given that the central mysteries are intertwined – the strange metal is a precursor to the pseudogap which in turn leads to superconductivity - CATCH-22 will aim to bring significant new insight into all three and pave the way, finally, for a coherent phenomenological model for cuprate superconductivity.

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The information about "CATCH-22" are provided by the European Opendata Portal: CORDIS opendata.

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