A neutron diffraction study of ferroelectric PbHAsO4 at room temperature
A single-crystal neutron-diffraction structural study of PbHAsO4 in its ferroelectric phase at room temperature (24°C) is presented as part of an investigation of a family of monetites. The crystal structure of PbHAsO4, and its phase transition mechanism are discussed. Comparison of the crystal structures of PbHPO4 and PbHAsO4 reveals that these two ferroelectrics are isomorphous. The role of protons in structural phase transition of PbHAsO4 is also discussed.
Volume 94, 2020
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