Abstract
A near-stoichiometric LiNbO 3 (N-SLN) single crystal has been grown by a Czochralski method from a melt of 58.5 mol% Li 2O composition. The N-SLN single crystal has been studied by white-beam synchrotron radiation topography. Due to the different structure factors between positive and negative domains at the reflection wavelength near the absorption edge of Nb atom, antiparallel 180° domains in N-SLN have been observed by anomalous scattering. The domain boundary is visible by black–white contrast from positive and negative domain and the ratio of | F ( 0 0 0 6 ) | 2 to | F ( 0 0 0 6 ¯ ) | 2 is calculated.
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