Understanding the superconductivity and charge density wave interaction through quasi-static lattice fluctuations.

ABSTRACT: In unconventional superconductors, coupled charge and lattice degrees of freedom can manifest in ordered phases of matter that are intertwined. In the cuprate family, fluctuating short-range charge correlations can coalesce into a longer-range charge density wave (CDW) order which is thought to intertwine with superconductivity, yet the nature of the interaction is still poorly understood. Here, by measuring subtle lattice fluctuations in underdoped YBa₂Cu₃O_6+y on quasi-static timescales (thousands of seconds) through X-ray photon correlation spectroscopy, we report sensitivity to both superconductivity and CDW. The atomic lattice shows remarkably faster relaxational dynamics upon approaching the superconducting transition at T_c ≈ 6

SUBMITTER: Porter Z 

PROVIDER: S-EPMC11648853 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature