TY - GEN
T1 - TEM observation on ferroelectric domain structures of PbTiO3 epitaxial films
AU - Aoyagi, Kenta
AU - Kiguchi, Takanori
AU - Ehara, Yoshitaka
AU - Funakubo, Hiroshi
AU - Konno, Toyohiko J.
PY - 2011
Y1 - 2011
N2 - The ferroelectric domain structure of PbTiO3 (PTO) films was investigated by using transmission electron microscopy (TEM). In the film with PTO/SrTiO3 (STO) structure, 180° domains are formed near the SrTiO3 (STO) substrate and the domain length of 180° domains is 100 nm. However, 180° domains are not formed in the film with Pt/PTO/SrRuO3 (SRO)/STO structure. These results show that 180° domains are formed in order to minimize depolarizing field energy, and that the domain length of 180° domains is determined by the competition among the depolarizing field energy, domain wall energy, Coulomb interaction and elastic interaction.
AB - The ferroelectric domain structure of PbTiO3 (PTO) films was investigated by using transmission electron microscopy (TEM). In the film with PTO/SrTiO3 (STO) structure, 180° domains are formed near the SrTiO3 (STO) substrate and the domain length of 180° domains is 100 nm. However, 180° domains are not formed in the film with Pt/PTO/SrRuO3 (SRO)/STO structure. These results show that 180° domains are formed in order to minimize depolarizing field energy, and that the domain length of 180° domains is determined by the competition among the depolarizing field energy, domain wall energy, Coulomb interaction and elastic interaction.
KW - Ferroelectric thin film
KW - TEM
UR - http://www.scopus.com/inward/record.url?scp=79960606844&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79960606844&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.485.179
DO - 10.4028/www.scientific.net/KEM.485.179
M3 - Conference contribution
AN - SCOPUS:79960606844
SN - 9783037851821
T3 - Key Engineering Materials
SP - 179
EP - 182
BT - Electroceramics in Japan XIV
PB - Trans Tech Publications Ltd
ER -