Coupling between magnetic excitations and optic phonons in high-Tc cuprate La2-xSrxCuO4
La2-xSrxCuO4 is an unusual high temperature superconducting system because it shows both spin and charge order near doping p ~1/8. This may be because the distortions of the LTO structure caused by the charge density wave modulate the exchange coupling J. This scenario is supported by recent neutron measurements which suggest that the inelastic magnetic scattering is anomalously strong where certain phonon branches cross dispersing magnetic excitations. Unfortunately, these unpolarized measurements do not distinguish between magnetic excitations and phonons. Here we propose to use polarization analysis to isolate the magnetic and phonon scattering and determine whether extra scattering is indeed present.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
HAYDEN Stephen M.; ENDERLE Mechthild; A. N. Petsch and ZHU Mengze. (2019). Coupling between magnetic excitations and optic phonons in high-Tc cuprate La2-xSrxCuO4. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-549
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.