Settling the "dead layer" debate in nanoscale capacitors.
Permittivity peaks in single crystal thin film capacitors are strongly suppressed compared to bulk in the case of Pt/SrTiO3 /Pt, but are relatively unaffected in Pt/BaTiO3 /Pt structures. This is consistent with the recent suggestion that subtle variations in interfacial bonding between the dielectric and electrode are critical in determining the presence or absence of inherent dielectric "dead layers".
Center for Nanostructured Media School of Maths and Physics Queen's University Belfast, Belfast, BT7 1NN, N. Ireland (UK).
Li-Wu
LW
Chang
Max Planck Institute of Microstructure Physics Weinberg 2, 06120 Halle/Saale (Germany).
Marin
M
Alexe
Department of Earth Sciences University of Cambridge, Cambridge, CB2 3EQ (UK).
James F
JF
Scott
Center for Nanostructured Media School of Maths and Physics Queen's University Belfast, Belfast, BT7 1NN, N. Ireland (UK).
J Marty
JM
Gregg