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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.

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

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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