TY  - JOUR
AU  - Thomarat, Laure
AU  - Elson, Frank
AU  - Nocerino, Elisabetta
AU  - Das, Debarchan
AU  - Ivashko, Oleh
AU  - Bartkowiak, Marek
AU  - Månsson, Martin
AU  - Sassa, Yasmine
AU  - Adachi, Tadashi
AU  - Zimmermann, Martin v.
AU  - Luetkens, Hubertus
AU  - Chang, Johan
AU  - Janoschek, Marc
AU  - Guguchia, Zurab
AU  - Simutis, Gediminas
TI  - Tuning of charge order by uniaxial stress in a cuprate superconductor
JO  - Communications Physics
VL  - 7
IS  - 1
SN  - 2399-3650
CY  - London
PB  - Springer Nature
M1  - PUBDB-2024-07833
SP  - 271
PY  - 2024
AB  - Strongly correlated electron materials are often characterized by competition and interplay of multiple quantum states. For example, in high-temperature cuprate superconductors unconventional superconductivity, spin- and charge-density wave orders coexist. A key question is whether competing states coexist on the atomic scale or if they segregate into distinct regions. Using X-ray diffraction, we investigate the competition between charge order and superconductivity in the archetypal cuprate La<sub>2−x</sub>Ba<sub>x</sub>CuO<sub>4</sub>, around x = 1/8-doping, where uniaxial stress restores optimal 3D superconductivity at σ3D ≈ 0.06 GPa. We find that the charge order peaks and the correlation length along the stripe are strongly reduced up to σ3D. Upon the increase of stress beyond this point, no further changes were observed. Simultaneously, the charge order onset temperature only shows a modest decrease. Our findings suggest that optimal 3D superconductivity is not linked to the absence of charge stripes but instead requires their arrangement into smaller regions. Our results provide insight into the length scales over which the interplay between superconductivity and charge order takes place.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001288922100002
DO  - DOI:10.1038/s42005-024-01760-0
UR  - https://bib-pubdb1.desy.de/record/619694
ER  -