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Lecture A. Ruediger

Rooster

WanneerWaar
25 januari 2006 FWN-Building 5116.0116, Nijenborgh 4, 9747 AG, Groningen
Speaker:Dr. A. Ruediger
Affiliation:Forschungszentrum Juelich, Institut fuer Festkoerperforschung, Elektronische Materialen, Juelich, Germany
Title:Size effects in ferroelectric nanostructures
Date:Wed Jan 25, 2006
Start:10.00
Location:FWN-Building 5116.0116
Host:G. Palasantzas
Telephone:+31 50 363 4272

Abstract

Ferroelectrics are among the most advanced candidates of fast non-volatile memory materials. How do the properties of the commonly used perovskites change with size and is there a fundamental limit showing up? While the operating voltage as the predominant driving force shifted the thickness down to a few unit cells, ferroelectrics are now on the verge of true nanoscale integration of laterally confined structures. Top-down, bottom-up approaches and their combination provide samples far below 100 nm and indicate that the interaction of electrode and ferroelectric becomes increasingly relevant in terms of strain and screening of the depolarization field. As the qualitative understanding of nanoscale ferroelectricity advances the ferroelectric limit appears to be below 10nm thus paving the road for further miniaturization.
Laatst gewijzigd:22 oktober 2012 14:31