Structure Property Relationships of the Insulator-Insulator Transition in CeMnAsO1-xFx (x = 0.00 - 0.08)
CeMnAsO is a Mott insulator and an unusual insulator-insulator transition is observed at low temperature upon electron doping, by substituting F- for O2-. CeMnAsO1-xFx (x = 0 - 0.08) have been synthesised. Below the transition temperature, TII, the resistivity is observed to increase by > 3 orders of magnitude over a 5 K temperature range for CeMnAsO1-xFx (x > 0.03). The preliminary results strongly suggest that the unusual insulator-insulator transition is a result of many body localisation (MBL) of the electrons which has not been previously reported in a bulk electronic phase. The proposed MBL phase is only observed over a narrow doping range (x = 0.035 - 0.075 inclusive). We propose to investigate the electronic phase diagram of CeMnAsO1-xFx by determining if there is any correlation between TII and bond lengths/angles. We also want to verify the stoichiometry of the different phases and determine how the Mn spin transition changes with electron doping.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
MCLAUGHLIN Abbie; LAWRENCE Gaynor; RITTER Clemens and SIMPSON Struan. (2018). Structure Property Relationships of the Insulator-Insulator Transition in CeMnAsO1-xFx (x = 0.00 - 0.08). Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-23-707
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.