In order to test a critical lateral dimension in two dimensional (2D) planar ferroelectric, epitaxial PbTiO3 discrete islands were fabricated by both lithography process and chemical solution deposition process with different lateral size. The evolution of 90° domain structures as a function of film thickness and lateral dimensions was characterized extensively by reciprocal space mapping using the Huber six‐circle diffractometer of the synchrotron x‐ray diffraction beam line at Pohang Light Source. This method is useful for considering a reciprocal lattice point that is tilted out of the growth plane and has many advantages for the investigation of imperfect heterostructures. As the pattern size decreases in micron scale, the substrate clamping effects is significantly reduced and thus the misfit strain in the films could be relaxed further. As the lateral size of patterns decreases to about 100 nm by e‐beam lithography, the quite different domain structures were observed especially in the strain distribution as well as tilting of a‐domains. The new type of a‐domains appeared in the nanoscale PbTiO3 patterns in the center of the reciprocal space map of tilted PbTiO3 (100) that has been observed in the continuous films. These new a‐domains are aligned along the substrate normal without the tilting angle required to maintain an a/c twin boundary relationship. Equilibrium domain structures in the PbTiO3 thin film islands are also analyzed by the finite element simulation and found to be consistent with the experimental observation. In the case of nano islands formed by chemical solution deposition, c‐domain abundance increases as both size and thickness decrease identically, which implies that if the size can be reduced below a certain critical size there exists only single c‐domain. Compared to the case of patterns with lateral dimension of 100 nm and thickness of 100 nm which has a tendency of reduced c‐domain abundance due to the reduction of compressive strain, islands with thickness of 30 nm and 120 nm lateral size have larger c‐domain abundance.
Skip Nav Destination
Article navigation
19 January 2007
SYNCHROTRON RADIATION INSTRUMENTATION: Ninth International Conference on Synchrotron Radiation Instrumentation
28 May-2 June 2006
Daegu (Korea)
Research Article|
January 19 2007
Characterization of Nanoscale Domain Structures in Epitaxial Ferroelectric PbTiO3 Capacitors by Reciprocal Space Mapping
Kilho Lee;
Kilho Lee
1Dept. of Materials Science & Engineering, Pohang University of Science and Technology
Search for other works by this author on:
Hee Han;
Hee Han
1Dept. of Materials Science & Engineering, Pohang University of Science and Technology
Search for other works by this author on:
Hyunjung Yi;
Hyunjung Yi
2Nano Device Research Center, Korea Institute of Science and Technology
Search for other works by this author on:
Yong Jun Park;
Yong Jun Park
1Dept. of Materials Science & Engineering, Pohang University of Science and Technology
3Pohang Accelerator Laboratory
Search for other works by this author on:
Jae‐Young Choi;
Jae‐Young Choi
3Pohang Accelerator Laboratory
Search for other works by this author on:
Sunggi Baik
Sunggi Baik
1Dept. of Materials Science & Engineering, Pohang University of Science and Technology
Search for other works by this author on:
AIP Conf. Proc. 879, 1411–1414 (2007)
Citation
Kilho Lee, Hee Han, Hyunjung Yi, Yong Jun Park, Jae‐Young Choi, Sunggi Baik; Characterization of Nanoscale Domain Structures in Epitaxial Ferroelectric PbTiO3 Capacitors by Reciprocal Space Mapping. AIP Conf. Proc. 19 January 2007; 879 (1): 1411–1414. https://doi.org/10.1063/1.2436329
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
19
Views
Citing articles via
Inkjet- and flextrail-printing of silicon polymer-based inks for local passivating contacts
Zohreh Kiaee, Andreas Lösel, et al.
Effect of coupling agent type on the self-cleaning and anti-reflective behaviour of advance nanocoating for PV panels application
Taha Tareq Mohammed, Hadia Kadhim Judran, et al.
Design of a 100 MW solar power plant on wetland in Bangladesh
Apu Kowsar, Sumon Chandra Debnath, et al.
Related Content
Lateral size effects on domain structure in epitaxial Pb Ti O 3 thin films
J. Appl. Phys. (September 2006)
Enhancing polarization by electrode-controlled strain relaxation in PbTiO3 heterostructures
APL Mater. (January 2016)
Minimum tetragonality in PbTiO3/BaTiO3 ferroelectric superlattices
J. Appl. Phys. (October 2013)
Suppressed polar distortion with enhanced Curie temperature in in-plane 90°-domain structure of a-axis oriented PbTiO3 Film
Appl. Phys. Lett. (January 2015)
Thermal equations of state and phase relation of PbTiO3: A high P-T synchrotron x-ray diffraction study
J. Appl. Phys. (October 2011)