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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.

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

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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