Optimizing the Preparation of Monoclinic and Pyrochlore Mn2Sb2O7

International Conference on Strongly Correlated Electron Systems 2016

Peets, Darren C.^1,4 ; Sim, Hasung^1,2 ; Avdeev, Maxim^3

Center for Correlated Electron Systems, Institute for Basic Science (IBS), Seoul

08826, Korea, Republic of^1

Department of Physics and Astronomy, Seoul National University, Seoul

08826, Korea, Republic of^2

Australian Nuclear Science and Technology Organisation, Lucas Heights

NSW

2234, Australia^3

Advanced Materials Laboratory, Fudan University, Shanghai

200438, China^4

关键词: Magnetization data;    Monoclinic structures;    Phase pure;    Prominent features;    Pyrochlore structures;    Pyrochlores;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/807/4/042002/pdf
DOI  :  10.1088/1742-6596/807/4/042002

来源: IOP

【 摘 要 】

Two polymorphs of Mn2Sb2O7have been reported, in the pyrochlore structure and in a chiral, monoclinic structure. In both cases, magnetization data have shown prominent features attributable to a ferrimagnetic impurity. Accessing the intrinsic physical properties of both materials thus requires first making them phase pure. We describe our efforts to optimize the preparation of both polymorphs and how we concluded this was necessary, in hopes that future work will be aided by detailed knowledge of this process.