TY - JOUR
T1 - Atomistic structure of 90° domain walls in ferroelectric PbTiO3 thin films
AU - Stemmer, S.
AU - Streiffer, S. K.
AU - Ernst, F.
AU - Rüuhle, M.
PY - 1995/3
Y1 - 1995/3
N2 - Using high-resolution transmission electron microscopy, we have studied the atomistic structure of 90° domain walls in ferroelectric PbTiO3 thin films. Variations in the c and a lattice parameters across domain boundaries were determined by measuring the distance between specific image features associated with Pb column positions. These positions were located with high precision by cross-correlating a single-column template with the entire image. Image simulations were performed on the basis of the deduced structure and were used to verify the correctness of the method and to estimate errors. The experimental lattice parameter variations are compared with predictions based on Landau-Ginzburg theory, and the domain wall energy is estimated to be 50mJm−2.
AB - Using high-resolution transmission electron microscopy, we have studied the atomistic structure of 90° domain walls in ferroelectric PbTiO3 thin films. Variations in the c and a lattice parameters across domain boundaries were determined by measuring the distance between specific image features associated with Pb column positions. These positions were located with high precision by cross-correlating a single-column template with the entire image. Image simulations were performed on the basis of the deduced structure and were used to verify the correctness of the method and to estimate errors. The experimental lattice parameter variations are compared with predictions based on Landau-Ginzburg theory, and the domain wall energy is estimated to be 50mJm−2.
UR - http://www.scopus.com/inward/record.url?scp=84953611626&partnerID=8YFLogxK
U2 - 10.1080/01418619508244477
DO - 10.1080/01418619508244477
M3 - Article
AN - SCOPUS:84953611626
SN - 0141-8610
VL - 71
SP - 713
EP - 724
JO - Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
JF - Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
IS - 3
ER -