2012 21St Ieee Int. Symp. on Applications of Ferroelectrics Held with 11Th Ieee European Conf. on Applications of Polar Dielectrics and 4Th Ieee Int. Symp on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, Isaf/Ecapd/Pfm, Date: 9 July 2012 through 13 July 2012, Location: Aveiro, Sponsors: Ultrason., Ferroelectr. Freq. Control;(UFFC) Soc. Inst. Electr. Electron. Eng. (IEEE)