ISIS Neutron and Muon Source Data Journal

Low temperature high magnetic field Neutron diffraction studies of re-entrant charge ordering transition in La5/8-yPryCa3/8MnO3 (y=0.45)

Abstract: Our aim is to investigate the chemical and magnetic structure of the charge ordered (CO) AFM and charge disordered FM phases of La5/8-yPryCa3/8MnO3 down to 2 K and study the variation of their relative phase fraction under zero field cool and field cooled conditions. The magnetic structure changes during this re-entrant (CO) transition are missing in the literature. The H-T phase diagram constructed using XRD studies shows that the field requirement to transform the AFM to FM first decreases with decreasing temperature down to 39 K and then increases with further decreasing temperature down to 2 K. The origin of this phase diagram actually lies into this re-entrant CO behaviour. Our preliminary XRD study demands some strong proof to conclusively present the results. The melting of CO phase will be studied studied by performing the neutron diffraction under external magnetic field.

Principal Investigator: Dr Niranjan Prasad Lalla
Experimenter: Miss Shivani Sharma
Local Contact: Dr Ivan da Silva Gonzalez
Experimenter: Dr Poonam Yadav

DOI: 10.5286/ISIS.E.RB1710037

ISIS Experiment Number: RB1710037

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

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

For Example:
Dr Niranjan Prasad Lalla et al; (2017): Low temperature high magnetic field Neutron diffraction studies of re-entrant charge ordering transition in La5/8-yPryCa3/8MnO3 (y=0.45), STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1710037

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