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TheONE SIGNED

The Janus-face of the localized carrier in cuprates: Generating the pseudogap and high temperature superconductivity

Total Cost €

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EC-Contrib. €

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Partnership

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 TheONE project word cloud

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

minimal    setups    exotic    probes    conjectures    enigma    charge    delicate    pressure    temperature    sc    appearance    combine    thoroughly    fermi    single    lies    pairing    models    excitation    search    strange    attempting    paradigm    unresolved    glue    hg1201    behavior    antiferromagnetic    highest    cell    phenomenon    uniaxial    balance    transport    conductivity    hard    experimental    boost    compounds    stems    structure    structural    physics    hardship    couple    localization    exactly    class    diagram    magneto    materials    carriers    complexity    primarily    potentially    full    optical    pseudogap    enormous    proximity    describe    bosonic    interactions    localized    educated    compound    local    significantly    model    temperatures    coupling    consequently    theoretical    gradual    mott    disorder    superimpose    liquid    cooper    explored    tc    carrier    relation    give    hypotheses    corresponds    phases    solution    difficulty    layer    pairs    superconductivity    experiments    follow    disparate    tested    excitonic    electronic    confirmed    mechanism    probed    tetragonal    material    elevated   

Project "TheONE" data sheet

The following table provides information about the project.

Coordinator
TECHNISCHE UNIVERSITAET WIEN 

Organization address
address: KARLSPLATZ 13
city: WIEN
postcode: 1040
website: www.tuwien.ac.at

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 Austria [AT]
 Total cost 2˙133˙950 €
 EC max contribution 2˙133˙950 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-COG
 Funding Scheme ERC-COG
 Starting year 2017
 Duration (year-month-day) from 2017-09-01   to  2022-08-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    TECHNISCHE UNIVERSITAET WIEN AT (WIEN) coordinator 1˙734˙375.00
2    FACULTY OF SCIENCE UNIVERSITY OF ZAGREB HR (ZAGREB) participant 399˙575.00

Map

 Project objective

The phenomenon of high-temperature (high-Tc) superconductivity (SC) is one of the most exciting, thoroughly investigated yet still unresolved problems in physics. A major difficulty in understanding high-Tc systems lies in the complexity of the materials and phase diagram. The delicate balance between material specific properties, disorder and the number of electronic phases superimpose makes it hard to identify the leading interactions. Consequently, theoretical models attempting to describe the high-Tc SC are significantly disparate and identifying the mechanism of SC at elevated temperatures is full of hardship. Due to the proximity of the antiferromagnetic phase, the strong electronic interactions, the appearance of a pseudogap etc., the electronic phase is considered to be exotic, a non-Fermi Liquid and the coupling mechanism for Cooper pairs strange. Based on my recent experiments, here I propose a change of paradigm: •that the charge carriers which couple to give high temperature superconductivity follow the well-known Fermi-liquid behavior •that the pseudogap phenomenon corresponds to a gradual (Mott-like) localization of exactly ONE charge carrier per unit cell •the “Glue” for pairing stems from a bosonic excitation of ONE localized carrier leading to a novel excitonic mechanism for SC. These hypotheses will be tested primarily on the model compound Hg1201, which features a simple tetragonal structure, minimal disorder effects, and the highest Tc in its class of single-layer compounds. Fermi-liquid aspects will be probed by novel approaches to (magneto)transport, optical conductivity. The relation between SC and The ONE will be explored by unique experimental setups that combine uniaxial-pressure with local/structural probes. If the above conjectures are indeed confirmed it would give an enormous boost to this field. Beyond finding the solution of a 30-year-old enigma, it would enable an educated search for new materials with potentially even higher Tc's.

 Publications

year authors and title journal last update
List of publications.
2019 G. R. Haripriya, C. M. N. Kumar, R. Pradheesh, L. M. Martinez, C. L. Saiz, S. R. Singamaneni, T. Chatterji, V. Sankaranarayanan, K. Sethupathi, B. Kiefer, H. S. Nair
Contrasting the magnetism in La 2 − x Sr x FeCoO 6
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.99.184411
Physical Review B 99/18 2020-04-03
2019 N Barišić, M K Chan, M J Veit, C J Dorow, Y Ge, Y Li, W Tabis, Y Tang, G Yu, X Zhao, M Greven
Evidence for a universal Fermi-liquid scattering rate throughout the phase diagram of the copper-oxide superconductors
published pages: 113007, ISSN: 1367-2630, DOI: 10.1088/1367-2630/ab4d0f
New Journal of Physics 21/11 2020-04-03
2018 Petar Popčević, Damjan Pelc, Yang Tang, Kristijan Velebit, Zachary Anderson, Vikram Nagarajan, Guichuan Yu, Miroslav Požek, Neven Barišić, Martin Greven
Percolative nature of the direct-current paraconductivity in cuprate superconductors
published pages: , ISSN: 2397-4648, DOI: 10.1038/s41535-018-0115-2
npj Quantum Materials 3/1 2020-02-12
2019 Yangmu Li, W. Tabis, Y. Tang, G. Yu, J. Jaroszynski, N. Barišić, M. Greven
Hole pocket–driven superconductivity and its universal features in the electron-doped cuprates
published pages: eaap7349, ISSN: 2375-2548, DOI: 10.1126/sciadv.aap7349
Science Advances 5/2 2020-02-12
2019 D. Pelc, P. Popčević, M. Požek, M. Greven, N. Barišić
Unusual behavior of cuprates explained by heterogeneous charge localization
published pages: eaau4538, ISSN: 2375-2548, DOI: 10.1126/sciadv.aau4538
Science Advances 5/1 2020-02-12
2018 Damjan Pelc, Marija Vučković, Mihael S. Grbić, Miroslav Požek, Guichuan Yu, Takao Sasagawa, Martin Greven, Neven Barišić
Emergence of superconductivity in the cuprates via a universal percolation process
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-06707-y
Nature Communications 9/1 2020-02-12
2018 Harikrishnan S Nair, C M N Kumar, D T Adroja, C Ritter, A S Wills, W A Kockelmann, Pascale P Deen, A Bhattacharyya, A M Strydom
Magnetic structure and field-dependent magnetic phase diagram of Ni 2 In-type PrCuSi
published pages: 435803, ISSN: 0953-8984, DOI: 10.1088/1361-648x/aae28d
Journal of Physics: Condensed Matter 30/43 2020-02-12

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