Magnetic fluctuations across Tc in optimally doped Ba(Fe0.94Co0.06)2As2
In a previous experiment (7-01-522) we found a strong softening and broadening of a transverse acoustic phonon in Ba(Fe0.94Co0.06)2As2. Interestingly, the broadening/damping of the phonons seems to correlate with the intensity of magnetic fluctuations thereby providing direct evidence for a dynamic spin-phonon coupling as the likely origin of nematicity in 122 iron-based superconductors. However, the available data for the magnetic fluctuations are sparse (only for T = 3 K) below the superconducting transition temperature Tc = 26K. Therefore, we would like to finish our study by a short measurement of about 18 hours to complement the temperature range 5K - 26K with a few points at T = 30K - 50K in order to connect/overlap to previous data. The results would allow us to finish the comparison between nematic phonon softening and magnetic fluctuations.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
WEBER Frank and STEFFENS Paul. (2023). Magnetic fluctuations across Tc in optimally doped Ba(Fe0.94Co0.06)2As2. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.EASY-1088
This data is not yet public
This data is not yet public
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