ISIS Neutron and Muon Source Data Journal

Exploration of crystal field level scheme of Ti doped Tb2Zr2O7

Abstract: We are investigating the Tb?Zr???Ti?O? (TZTO) compounds, where Ti doping transforms the structure from a disordered fluorite to an ordered pyrochlore phase. Our recent bulk measurements reveal new structural and magnetic features in Tb?Zr???Ti?O?. Heat capacity measurements (Fig. 2(a)) show a peak near 4.9 K at zero field, which remains in the Ti-doped sample but with reduced intensity. . AC susceptibility of Tb?Zr?O? also shows a notable deviation at 4.9 K, which weakens above 1 T. Beyond this field, a spin-freezing-like feature appears, similar to that observed in Dy?Zr?O? and Ho?Zr?O?. These results suggest that changes in structure significantly alter the magnetic ground state and likely impact crystal electric field (CEF) excitations. We propose to perform inelastic neutron scattering measurements in Tb?Zr???Ti?O? (x = 0, 0.50) to understand the 4.9 K anomaly and role of CEF excitations on the magnetism of the compound using the high count-rate chopper spectrometer MERLIN. We request 1 day of beamtime to collect data at three temperatures 4 K (or below), 10 K, and 100 K, for 7 hours and the additional time 3 h for cooling/warming.

Principal Investigator: Dr Shekhar Yadav
Local Contact: Dr Duc Le
Experimenter: Miss Sujata Sujata

DOI: 10.5286/ISIS.E.RB2520154

ISIS Experiment Number: RB2520154

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 Shekhar Yadav et al; (2025): Exploration of crystal field level scheme of Ti doped Tb2Zr2O7, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520154

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