ISIS Neutron and Muon Source Data Journal

Ordering phenomena in the new cerium compound Ce2Rh2Ga

Abstract: Cerium and ytterbium are two members of the lanthanide (rare earth) series of elements that haverevealed in their intermetallic compounds new physics and many interesting properties. The newcerium compound Ce2Rh2Ga has been found to form in one of two polymorphs, depending on thetemperature of formation. Here we wish to investigate peculiar ordering phenomena in the hightemperaturevariant, which forms in an orthorhombic crystal structure. Our exploratory physicalproperty studies discovered two unusual features: one is a sharp and very prominent anomaly atTH=127 K, and the second is a more subtle feature at low temperatures, called TL=1.5 K. Ourelectron transport studies show the likelihood of a metal-to-insulator transition accompanied by acrystal structure transformation at TH, whereas the origin of the lower transition is more obscurebut probably of magnetic origin.

Principal Investigator: Professor Andre Strydom
Experimenter: Dr Devashi Adroja
Experimenter: Ms Sindisiwe Xhakaza
Local Contact: Dr Dmitry Khalyavin

DOI: 10.5286/ISIS.E.RB1810121

ISIS Experiment Number: RB1810121

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:
Professor Andre Strydom et al; (2018): Ordering phenomena in the new cerium compound Ce2Rh2Ga, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810121

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