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Observing the suppression of superconductivity in RbEuFe$_4$As$_4$ by correlated magnetic fluctuations

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 نشر من قبل Alexei Koshelev E.
 تاريخ النشر 2020
  مجال البحث فيزياء
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In this letter, we describe quantitative magnetic imaging of superconducting vortices in RbEuFe$_4$As$_4$ in order to investigate the unique interplay between the magnetic and superconducting sublattices. Our scanning Hall microscopy data reveal a pronounced suppression of the superfluid density near the magnetic ordering temperature in good qualitative agreement with a recently-developed model describing the suppression of superconductivity by correlated magnetic fluctuations. These results indicate a pronounced exchange interaction between the superconducting and magnetic subsystems in RbEuFetextsubscript{4}Astextsubscript{4} with important implications for future investigations of physical phenomena arising from the interplay between them.



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