**About the Editors**

**Robert A. Jackson** is Reader in Computational Solid State Chemistry at Keele University. He obtained his BSc, Ph.D. and DSc degrees from University College London, and has published around 150 papers in peer-reviewed journals, including a series of papers on computer modelling of structure, properties and defect chemistry of lithium niobate.

**Zsuzsanna Szaller** has a Ph.D. degree from Budapest University of Technology and Economics and is a chemical engineer and Ph.D. research fellow in the Institute for Solid State Physics and Optics, Wigner Research Centre for Physics Department of Applied and Nonlinear Optics, Project Crystal Physics. She has 38 published papers. Her research Interests include single crystal growth; niobates; high-temperature top-seeded solution growth.
