Title :
Synthesis of the Ferroelectric Solid Solution, Pb(Zr1-xTix)O3 on a Single Substrate Using a Modified Molecular Beam Epitaxy (MBE) Technique
Author :
Anderson, P.S. ; Guerin, S. ; Hayden, B.E. ; Khan, M.A. ; Bell, A.J. ; Han, Y. ; Pasha, M. ; Whittle, K.R. ; Reaney, I.M.
Author_Institution :
Southampton Univ., Southampton
Abstract :
High-throughput synthesis of the ferroelectric solid solution Pb(Zr1-xTix)O3 (PZT) on single Pt/Ti/SiO2/Si substrates was demonstrated using a modified molecular beam epitaxy (MBE) system. The PZT films exhibited a phase transition from rhombohehdral (R) to tetragonal (T) symmetry as a function of Zr:Ti ratio, across the substrate diagonal. This was consistent with the presence of a morphotropic phase boundary (MPB) at a Z:Ti ratio of 0.64:0.36, different from the value of 0.53:0.47 observed for bulk ceramics. All points on the films exhibited ferroelectric hysteresis loops. The results demonstrate the feasibility of high-throughput MBE for deposition of complex ferroelectric oxides, and pave the way for further materials discovery, in particular Pb-free piezoceramics.
Keywords :
dielectric hysteresis; ferroelectric thin films; ferroelectric transitions; lead compounds; materials preparation; molecular beam epitaxial growth; platinum; silicon; silicon compounds; solid solutions; titanium; PZT films; PbZrTiO3; Pt-Ti-SiO2-Si; ferroelectric hysteresis loops; ferroelectric solid solution; molecular beam epitaxy technique; morphotropic phase boundary; phase transition; piezoceramics; Ferroelectric films; Ferroelectric materials; Molecular beam epitaxial growth; Pulsed laser deposition; Radio frequency; Scanning electron microscopy; Solids; Sputtering; Substrates; Zirconium;
Conference_Titel :
Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on
Conference_Location :
Nara
Print_ISBN :
978-1-4244-1334-8
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2007.4393200
