ISIS Neutron and Muon Source Data Journal

Crystal Field Excitations and phonon density of state in Ferromagnetic Superconducting Sr0.5RE0.5FBiS2 (RE=Ce, Nd and Pr) using Inelast

Abstract: Recently some of us studied the presence of superconductivity (SC) under hydrostatic pressure (0?2.5 GPa) in Sr0.5RE0.5FBiS2 with R = Ce, Pr, Nd, and Sm (crystallized in tetragonal P4/nmm space group). At ambient pressure, though the RE = Ce (also La) exhibits the onset of SC below 2.7 K, the Nd, Pr, and Sm samples are not superconducting down to 2 K. Further RE=Ce and Sm show an onset of ferromagnetic transition below 8 K at ambient pressure. With application of hydrostatic pressure (up to 2.5 GPa), superconducting transition temperature (Tc) is increased to around 10 K (at 1.5Gpa) for all the studied samples. We propose here to investigate superconducting ground state of Sr0.5RE0.5FBiS2 through inelastic neutron scattering experiments to investigate the crystalline electric field (CEF) excitations of rare earth ion (RE3+=Ce, Pr and Nd) as well as phonon density of state.

Principal Investigator: Dr Devashi Adroja
Experimenter: Dr V. P. S. Awana
Experimenter: Mr RAJVEER JHA
Experimenter: Dr Amitava Bhattacharyya

DOI: 10.5286/ISIS.E.RB1520436

ISIS Experiment Number: RB1520436

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Devashi Adroja et al; (2016): Crystal Field Excitations and phonon density of state in Ferromagnetic Superconducting Sr0.5RE0.5FBiS2 (RE=Ce, Nd and Pr) using Inelast, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520436

Data is released under the CC-BY-4.0 license.