10.5286/ISIS.E.RB1920086-1
Dr Donna Arnold
Dr Craig Bull
Pressure driven phase transitions in the magnetically frustrated layered material, Ca2Mn3O8
ISIS Facility
2019
STFC ISIS Neutron and Muon Data
10.5286/ISIS.E.RB1920086
Frustration occurs in materials where antiferromagnetic (spin up and spin down pairs) are incomparible with the underlying crystal morphology, for example where the connectivity between magnetic ions has a triangular motif. In these magnetic materials the magnetically ordered state is often unconventional. Calcium manganese oxide, Ca2Mn3O8, exhibits managnese oxide layers seperated by calcium ions. Within the layers a complex "bow-tie" like connectivity of the maganese leads to a "two up two down" spin arrangement below a temperature of approximately 50 K. We would like to conduct new experiments as a function of applied pressure and temperature to extend these initial studies. This will allow us to correlate applied pressure with chemical pressure to target new frustrated materials.