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Cover Picture: Phys. Status Solidi A 206/4
Publication year - 2009
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200990003
Subject(s) - nanoscopic scale , cover (algebra) , condensed matter physics , materials science , scale (ratio) , capacitance , grain boundary , permittivity , curie temperature , curie , nanotechnology , physics , dielectric , optoelectronics , composite material , engineering , mechanical engineering , electrode , quantum mechanics , microstructure , ferromagnetism
The front cover picture of this issue is extracted from the Feature Article on ‘Ferroelectrics at the nanoscale’ by J. M. Gregg, pp. 577–587. Specifically, it summarises several key observations that have recently been made on the properties of meso and nanoscale BaTiO 3 single crystals. Firstly, the graph on the lower right hand side shows that the anomaly in the measured permittivity, associated with the Curie temperature in ferroelectrics, does not necessarily need to be smeared out by ‘dead‐layers’ in thin films. Secondly, the capacitance–voltage double peak on the upper left hand side illustrates that electrical switching of nanoscale single crystal BaTiO 3 is significantly easier than in equivalent geometries in which grain boundaries are present. Thirdly, the background image shows that domain configurations adopted in small scale dots are strongly influenced by both size and morphology (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)