June 2018: Dr John Daniels "Long-range symmetry breaking in embedded ferroelectrics"

June 2018: Dr John Daniels "Long-range symmetry breaking in embedded ferroelectrics"

"Application of a novel x-ray microscopy method to peer deep inside polycrystalline ferroelectrics"

By H Simons, AB Haugen, AC Jakobsen, S Schmidt, F Stöhr, M Majkut, C Detlefs, J Daniels, D Damjanovic and HF Poulsen.

In research led by a former graduate of the School, a novel x-ray microscopy method has been used to investigate the microstructure of a prototypical ferroelectric material.  The research found that in contrast to many theoretical descriptions of these materials, long length-scale deviations from the expected structure of the material were pervasive.  In order to provide this level of detail of the buried microstructure of the material, the European Synchrotron x-ray source was used in conjunction with a microscope instrument developed and built by Hugh and his broader research group at Denmark Technical University.

Read the full paper, as published in Nature (Volume 17, pp 814-819, 2018).