3 papers
cond-mat.mtrl-sci2025
In-situ SHG microscopy investigation of the domain-wall-conductivity enhancement procedure in lithium niobate
Iuliia Kiseleva, Boris Koppitz, Elke Beyreuther +3
Conductive domain walls (CDWs) in the uniaxial ferroelectric lithium niobate (LiNbO, LN) have attracted a lot of interest as potential elements in 2D nanoelectronics, due to th…
physics.optics2024
Surface-near domain engineering in multi-domain x-cut lithium niobate tantalate mixed crystals
Laura Bollmers, Tobias Babai-Hemati, Boris Koppitz +5
Lithium niobate and lithium tantalate are among the most widespread materials for nonlinear, integrated photonics. Mixed crystals with arbitrary Nb-Ta ratios provide a new degree o…
cond-mat.mtrl-sci2024
Towards the reproducible fabrication of conductive ferroelectric domain walls into lithium niobate bulk single crystals
Julius Ratzenberger, Iuliia Kiseleva, Boris Koppitz +7
Ferroelectric domain walls (DWs) are promising structures for assembling future nano-electronic circuit elements on a larger scale, since reporting domain wall currents of up to 1…