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  2. An Electronic Nematic Liquid in BaNi2As2
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    Datenpaket: An Electronic Nematic Liquid in BaNi2As2

    Alternativer Identifier:
    (KITopen-DOI) 10.5445/IR/1000148276
    Verwandter Identifier:
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    Ersteller/in:
    Le Tacon, Matthieu https://orcid.org/0000-0002-5838-3724 [Institut für Quantenmaterialien und -technologien]
    Beitragende:
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    Titel:
    An Electronic Nematic Liquid in BaNi2As2
    Weitere Titel:
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    Beschreibung:
    (Abstract) Understanding the organizing principles of interacting electrons and the emergence of novel electronic phases is a central endeavor of condensed matter physics. Electronic nematicity, in which the discrete rotational symmetry in the electron fluid is broken while the translational one remains unaffected, is a prominent example of such a phase. It has proven ubiquitous in correlated electron systems, and is of prime importance to understand Fe-based superconductors. Here, we find that fluctuations of such broken symmetry are exceptionally strong over an extended temperature range above phase transitions in BaNi$_2$(As$_{1−x}$P$_x$)$_2$ , the nickel homologue to the Fe-based systems. This lends support to a type of electronic nematicity, dynamical in nature, which exhibits a particularly strong coupling to the underlying crystal lattice. Fluctuations between degenerate nematic configurations cause a splitting of phonon lines, without lifting degeneracies nor breaking symmetries, akin to spin liquids in magnetic systems
    (Technical Remarks) Raman scattering data
    Schlagworte:
    Raman scattering
    nematic
    quantum material
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    Sprache:
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    Herausgeber/in:
    Karlsruhe Institute of Technology
    Erstellungsjahr:
    Fachgebiet:
    Physics
    Objekttyp:
    Dataset
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    Status:
    Publiziert
    Eingestellt von:
    kitopen
    Erstellt am:
    Archivierungsdatum:
    2023-06-21
    Archivgröße:
    3,8 MB
    Archiversteller:
    kitopen
    Archiv-Prüfsumme:
    b00b736f8b7b66caf55200ec2a51acc1 (MD5)
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