ISIS Neutron and Muon Source Data Journal

Nature of the Magnetic Order in the New Nd-based Pyrochlore Nd2Pt2O7

Abstract: We propose to carry out neutron diffraction experiments on Nd2Pt2O7 using WISH. We have successfully synthesized a polycrystalline sample of this new member of the Nd-based pyrochlore family. Nd2Zr2O7 orders at 285 mK with an all-in-all-out (AIAO) anti-ferromagnetic (AFM) structure and exhibits magnetic fragmentation, while Nd2Sn2O7 adopts a noncoplanar AIAO structure below 0.91 K. For Nd2Pt2O7, our heat capacity and magnetization data reveal this system orders magnetically at a much higher temperature of 1.4 K. While an AIAO structure is anticipated, the exact nature of the magnetic order is unknown. Hysteresis in the magnetization vs temperature curves below the ordering T suggests a canting or FM component to the ordering. It is crucial to determine the magnetic structure of Nd2Pt2O7 in order to develop a unified understanding of the physics of the Nd-based pyrochlores.

Principal Investigator: Professor Martin Lees
Experimenter: Professor Lieh-Jeng Chang
Local Contact: Dr Pascal Manuel
Experimenter: Dr Jason Gardner
Experimenter: Dr David Jonas

DOI: 10.5286/ISIS.E.RB2010497

ISIS Experiment Number: RB2010497

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:
Professor Martin Lees et al; (2020): Nature of the Magnetic Order in the New Nd-based Pyrochlore Nd2Pt2O7, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010497

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