Nanoscale Sr2IrO4 Freestanding Thin-Films for Flexible Electronics
Abstract
We report the structural and optical properties of nanoscale Sr2IrO4 freestanding thin-films fabricated using a water-soluble Sr3Al2O6 layer. The coherent lattice structure, phonon modes, two-magnon Raman scattering, and optical absorption spectra of the Sr2IrO4 nanomembrane are analogous to those of the layered iridate epitaxial thin-films and single crystals. Remarkably, the formation of 3-unit-cell-thick SrIrO3 and interfacial composite layers alleviates antiphase boundaries at the Sr2IrO4/Sr3Al2O6 interface, resulting in structurally-robust nanomembranes. Our experimental results show that this freestanding thin-film approach of layered oxides can provide techniques for tuning or realizing unprecedented states beyond conventional thin-film methods, suggesting a pathway in achieving flexible layered-oxide electronics.
Versions
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BibTeX
@misc{shrestha2026nanoscale,
title = {{Nanoscale Sr$_2$IrO$_4$ Freestanding Thin-Films for Flexible Electronics}},
author = {Sujan Shrestha and Matthew Coile and Menglin Zhu and Maryam Souri and Jiwoong Kim and Rina Pandey and Joseph Brill and Jinwoo Hwang and Jong-Woo Kim and Ambrose Seo},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.25328},
eprint = {2609.25328},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.25328},
}
RIS
TY - UNPB
TI - Nanoscale Sr_2IrO_4 Freestanding Thin-Films for Flexible Electronics
AU - Sujan Shrestha
AU - Matthew Coile
AU - Menglin Zhu
AU - Maryam Souri
AU - Jiwoong Kim
AU - Rina Pandey
AU - Joseph Brill
AU - Jinwoo Hwang
AU - Jong-Woo Kim
AU - Ambrose Seo
PY - 2026
DA - 2026/09/21
PB - arXiv
DO - 10.48550/arxiv.2609.25328
UR - https://arxiv.org/abs/2609.25328
AB - We report the structural and optical properties of nanoscale Sr2IrO4 freestanding thin-films fabricated using a water-soluble Sr3Al2O6 layer. The coherent lattice structure, phonon modes, two-magnon Raman scattering, and optical absorption spectra of the Sr2IrO4 nanomembrane are analogous to those of the layered iridate epitaxial thin-films and single crystals. Remarkably, the formation of 3-unit-cell-thick SrIrO3 and interfacial composite layers alleviates antiphase boundaries at the Sr2IrO4/Sr3Al2O6 interface, resulting in structurally-robust nanomembranes. Our experimental results show that this freestanding thin-film approach of layered oxides can provide techniques for tuning or realizing unprecedented states beyond conventional thin-film methods, suggesting a pathway in achieving flexible layered-oxide electronics.
ER -