Spin resonant mode in superconducting Ca(Fe1-xCox)AsF single crystals
Understanding the microscopic relationship among magnetism, nematic order and superconductivity is a pivotal issue in the research on iron-based superconductors. The presence of spin-orbit coupling and the interplay of various electronic degrees of freedom in these materials lead to complex ground- and excited-state properties. To understand the superconductivity, it is therefore important to focus on universal phenomena out of the material-specific details. To this end, the spin resonant mode probed by inelastic neutron scattering (INS) is widely regarded as an important handle. But due to the unavailability (until now) of sizable single crystals required by INS, the resonant mode has not been studied systematically in the “1111” single crystals, so the universality of such findings still awaits a thorough test. Here we propose to perform the first INS measurement of the spin resonant mode in single crystals of Ca(Fe1-xCox)AsF (x = 0.12, Tc = 20 K).This will enable further in-depth study of the Q-space structure, doping evolution, and relationship to spin-orbit coupling effects.
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:
Mingwei MA; Bourges; HE Guanhong; IVANOV Alexandre; Xintong Li; LI Yuan and SIDIS Yvan. (2021). Spin resonant mode in superconducting Ca(Fe1-xCox)AsF single crystals. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-544
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.