cg401775p_si_001.pdf (99.91 kB)
Download fileLiquid Phase Electro-Epitaxy of Memristive LiNbO2 Crystals
journal contribution
posted on 2014-05-07, 00:00 authored by Jordan
D. Greenlee, Joshua C. Shank, M. Brooks Tellekamp, Brendan P. Gunning, Chloe
A. M. Fabien, W. Alan DoolittleThe
growth of seeded and self-nucleated LiNbO2 crystals
with a simplified chemistry has been demonstrated using a liquid phase
electro-epitaxy method at high temperatures (900 °C). X-ray diffraction
(XRD) was used to quantify the crystal quality and confirmed that
both the seeded and self-nucleated crystals grown were single-orientation;
the full width at half-maximum (FWHM) for the symmetric XRD double
crystal diffraction scan was 230 arcsec, while the FWHM for the XRD
omega rocking curve was 19.2 arcmin and 310 arcsec for self-nucleated
and seeded crystals, respectively. The LiNbO2 crystals have undetectable amounts of contamination
as determined via X-ray photoelectron spectroscopy and secondary ion
mass spectrometry. Finally, as-grown LiNbO2 crystals were
shown to exhibit a memristive response and could be utilized in future
neuromorphic computing architectures.