Speaker
Xunyang Hong
Description
This study reports direct observation of charge order fluctuations in the unconventional superconductor $\mathrm{La_{1.675}Eu_{0.2}Sr_{0.125}CuO_4}$ (LESCO) using resonant inelastic x-ray scattering (RIXS). Charge order is linked to and competes with superconductivity in cuprates, making its fluctuations key to understanding the low-energy physics in these materials. Past studies mainly focused on indirect methods, but this study uniquely separates out these fluctuations directly. We used numerical simulations to isolate charge order fluctuations from other low-energy signals. Our findings enhance the understanding of these fluctuations in superconductivity and introduce a new method for studying quantum materials.
Author
Xunyang Hong
Co-authors
Karin von Arx
(University of Zurich)
Dr
J. Choi
(Diamond Light Source)
Prof.
Y. Sassa
(Chalmers University of Technology)
Prof.
S. Pyon
(University of Tokyo)
Prof.
T. Takayama
(University of Tokyo)
Prof.
H. Takagi
(University of Tokyo)
Dr
M. Garcia-Fernandez
(Diamond Light Source)
Dr
Ke-Jin Zhou
(Diamond Light Source)
Johan Chang
Prof.
Qisi Wang
(The Chinese University of Hong Kong)
