TY - GEN
T1 - Observations of 180° ferroelectric domains through lithium niobate using Bragg and Laue X-ray topography with the application of electric fields
AU - Jach, Terrence
AU - Durbin, Stephen
AU - Kim, Sungwon
AU - Gopalan, Venkatraman
PY - 2006/12/1
Y1 - 2006/12/1
N2 - We report on the visualization of domain wall strains in congruent LiNbO 3 using Bragg and Laue x-ray topography. The Laue geometry allows imaging through the entire crystal. Using monochromatic synchrotron undulator radiation and a magnifying x-ray camera, we are able to image domains created by electric field poling, as well as the strain associated with the subsequent application of an electric field to the domains in real time. Electric fields below the coercive field applied along the c-axis produce unexpected and complex strain patterns which are precursors to 180° domain wall switching. The strains observed with field off and on in the Laue topographs differ significantly from the surface strains observed previously with Bragg topography.
AB - We report on the visualization of domain wall strains in congruent LiNbO 3 using Bragg and Laue x-ray topography. The Laue geometry allows imaging through the entire crystal. Using monochromatic synchrotron undulator radiation and a magnifying x-ray camera, we are able to image domains created by electric field poling, as well as the strain associated with the subsequent application of an electric field to the domains in real time. Electric fields below the coercive field applied along the c-axis produce unexpected and complex strain patterns which are precursors to 180° domain wall switching. The strains observed with field off and on in the Laue topographs differ significantly from the surface strains observed previously with Bragg topography.
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M3 - Conference contribution
AN - SCOPUS:33751396939
SN - 047008295X
SN - 9780470082959
T3 - Ceramic Transactions
SP - 119
EP - 125
BT - Electroceramic Materials and Applications - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology
T2 - 6th Pacific Rim Conference on Ceramic and Glass Technology
Y2 - 11 September 2005 through 16 September 2005
ER -