Laser-Ablated Au Electrodes with Preferred Orientation and Flat Interface on Oxides
Abstract
Gold (Au) thin-film electrodes deposited on oxides by pulsed laser deposition (PLD) exhibit distinctive structural properties compared with thermally evaporated Au films. While thermally evaporated Au forms polycrystalline films with randomly oriented grains, PLD-grown Au films show a strong preferred [111] orientation perpendicular to the substrate surface, likely due to the energetic nature of the laser-ablated Au plume. High-resolution transmission electron microscopy reveals atomically flat interfaces between the PLD-grown Au electrodes and epitaxial oxide thin films, separated by nanometer-scale gaps comparable to interlayer spacings in van der Waals materials. The highly ordered microstructure and flat interfacial morphology result in enhanced adhesion of the Au films to oxide surfaces. These results demonstrate that PLD can produce both high-quality Au electrodes and oxide thin films within a single deposition platform, offering improved interfacial control and potential benefits for a wide range of oxide electronic and functional devices.
Versions
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BibTeX
@misc{seo2026laserablated,
title = {{Laser-Ablated Au Electrodes with Preferred Orientation and Flat Interface on Oxides}},
author = {Ambrose Seo and Richard Lai and Sujan Shrestha and Tina Tong and Joseph W. Brill and Menglin Zhu and Chris Chae and Jinwoo Hwang},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.22461},
eprint = {2609.22461},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.22461},
}
RIS
TY - UNPB
TI - Laser-Ablated Au Electrodes with Preferred Orientation and Flat Interface on Oxides
AU - Ambrose Seo
AU - Richard Lai
AU - Sujan Shrestha
AU - Tina Tong
AU - Joseph W. Brill
AU - Menglin Zhu
AU - Chris Chae
AU - Jinwoo Hwang
PY - 2026
DA - 2026/09/18
PB - arXiv
DO - 10.48550/arxiv.2609.22461
UR - https://arxiv.org/abs/2609.22461
AB - Gold (Au) thin-film electrodes deposited on oxides by pulsed laser deposition (PLD) exhibit distinctive structural properties compared with thermally evaporated Au films. While thermally evaporated Au forms polycrystalline films with randomly oriented grains, PLD-grown Au films show a strong preferred [111] orientation perpendicular to the substrate surface, likely due to the energetic nature of the laser-ablated Au plume. High-resolution transmission electron microscopy reveals atomically flat interfaces between the PLD-grown Au electrodes and epitaxial oxide thin films, separated by nanometer-scale gaps comparable to interlayer spacings in van der Waals materials. The highly ordered microstructure and flat interfacial morphology result in enhanced adhesion of the Au films to oxide surfaces. These results demonstrate that PLD can produce both high-quality Au electrodes and oxide thin films within a single deposition platform, offering improved interfacial control and potential benefits for a wide range of oxide electronic and functional devices.
ER -