Open AccessCharged domain walls in lithium tantalate with compositional gradients produced by partial VTE process
Author(s) -
E. D. Greshnyakov,
B. I. Lisjikh,
V. I. Pryakhina,
М. С. Небогатиков,
V. Ya. Shur
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/699/1/012015
Subject(s) - lithium tantalate , domain (mathematical analysis) , domain wall (magnetism) , pyroelectricity , polar , materials science , charged particle , optics , ferroelectricity , chemistry , physics , lithium niobate , ion , optoelectronics , magnetic field , mathematics , magnetization , mathematical analysis , organic chemistry , quantum mechanics , astronomy , dielectric
The morphology of a single charged domain wall, appeared under the action of composition gradients produced by partial VTE procedure by Cherenkov-type second harmonic generation microscopy, was observed in detail. The width of the charged domain wall was estimated as 70 μm. Non-through and through narrow domains, grown from the charged domain wall, were revealed. The maximum length of non-through domains with submicron diameter was about 100 μm. The growth of narrow domains from the charged domain wall was demonstrated and attributed to the action of pyroelectric field. The widening of domains occurred after achieving the polar surface.