@article{martin_chen_du_kumar_tevis_chang_pathak_thuo_2024, title={Atomic Reconstruction of Au Thin Films through Interfacial Strains}, volume={24}, ISSN={["1530-6992"]}, url={https://doi.org/10.1021/acs.nanolett.3c04412}, DOI={10.1021/acs.nanolett.3c04412}, abstractNote={Interfaces play a critical thermodynamic role in the existence of multilayer systems. Due to their utility in bridging energetic and compositional differences between distinct species, the formation of interfaces inherently creates internal strain in the bulk due to the reorganization needed to accommodate such a change. We report the effect of scaling interfacial stress by deposition of different adlayers on a host thin metal film. Intrinsic property differences between host and deposited metal atoms result in varying degree of composition and energy gradient within the interface. Interfacial stress can increase defects in the host leading to (i) energy dissipation and reorganization to minimize surface energy, and (ii) increased material strength. We infer that dissipation of interfacial stress induces defect migration, hence bulk and surface atomic reconstruction as captured by the surface roughness and grain size reduction coupled with a concomitant increase in material strength.}, number={6}, journal={NANO LETTERS}, author={Martin, Andrew and Chen, Jiahao and Du, Chuanshen and Kumar, Manish and Tevis, Ian D. and Chang, Boyce and Pathak, Sid and Thuo, Martin M.}, year={2024}, month={Jan}, pages={1967–1973} }
 @article{gwalani_martin_kautz_guo_lambeets_olszta_battu_malakar_yang_guo_et al._2024, title={Mechanistic understanding of speciated oxide growth in high entropy alloys}, volume={15}, ISSN={["2041-1723"]}, DOI={10.1038/s41467-024-49243-8}, abstractNote={Complex multi-element alloys are gaining prominence for structural applications, supplementing steels, and superalloys. Understanding the impact of each element on alloy surfaces due to oxidation is vital in maintaining material integrity. This study investigates oxidation mechanisms in these alloys using a model five-element equiatomic CoCrFeNiMn alloy, in a controlled oxygen environment. The oxidation-induced surface changes correlate with each element's interactive tendencies with the environment, guided by thermodynamics. Initial oxidation stages follow atomic size and redox potential, with the latter becoming dominant over time, causing composition inversion. The study employs in-situ atom probe tomography, transmission electron microscopy, and X-ray absorption near-edge structure techniques to elucidate the oxidation process and surface oxide structure evolution. Our findings deconvolute the mechanism for compositional and structural changes in the oxide film and will pave the way for a predictive design of complex alloys with improved resistance to oxidation under extreme conditions.}, number={1}, journal={NATURE COMMUNICATIONS}, author={Gwalani, Bharat and Martin, Andrew and Kautz, Elizabeth and Guo, Boyu and Lambeets, S. V. and Olszta, Matthew and Battu, Anil Krishna and Malakar, Aniruddha and Yang, Feipeng and Guo, Jinghua and et al.}, year={2024}, month={Jun} }
 @article{martin_thuo_2024, title={Predicting Emergence of Nanoscale Order in Surface Oxides through Preferential Interactivity Parameter}, volume={18}, ISSN={["1936-086X"]}, url={https://doi.org/10.1021/acsnano.3c10935}, DOI={10.1021/acsnano.3c10935}, abstractNote={Diffusion and surface oxidation are critical processes in metal alloy designs and use. Surface oxides provide opportunities to improve material properties or performance beyond bulk alterations. Surface oxidation is, however, often oversimplified into a classical diffusion process. Passivating oxide surfaces are also thought to be lacking in complexity or critical information. A closer look, however, shows inherent complexity with kinetics-driven competition between the elements in the process leading to redox-speciation across a very small (nm) thickness. Questions that remain to be answered for a comprehensive understanding of surface oxides are diverse and call for interdisciplinary approaches. By using the thermodynamics-based Preferential Interactivity Parameter (PIP) alongside kinetic consideration, we show how complexity in these oxides can be predicted allowing us to tailor these thin films. We use our work, and that of others, to illustrate predictability while also highlighting that there is still much more to be done.}, number={9}, journal={ACS NANO}, author={Martin, Andrew and Thuo, Martin}, year={2024}, month={Feb}, pages={6740–6747} }
 @article{martin_thuo_2023, title={Beyond Hume-Rothery Rules}, volume={8}, ISSN={["2643-6728"]}, url={https://doi.org/10.1021/accountsmr.3c00126}, DOI={10.1021/accountsmr.3c00126}, abstractNote={ADVERTISEMENT RETURN TO ARTICLES ASAPPREVViewpointBeyond Hume-Rothery RulesAndrew MartinAndrew MartinDepartment of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United StatesMore by Andrew MartinView Biography and Martin Thuo*Martin ThuoDepartment of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States*Email: [email protected]More by Martin ThuoView Biographyhttps://orcid.org/0000-0003-3448-8027Cite this: Acc. Mater. Res. 2023, XXXX, XXX, XXX-XXXPublication Date (Web):August 18, 2023Publication History Received12 July 2023Published online18 August 2023https://doi.org/10.1021/accountsmr.3c00126© 2023 Accounts of Materials Research. Co-published by ShanghaiTech University and American Chemical Society. All rights reserved.Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views726Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (4 MB) Get e-AlertscloseSUBJECTS:Electrical energy,Energy landscapes,Free energy,Photovoltaics,Solutions Get e-Alerts}, journal={ACCOUNTS OF MATERIALS RESEARCH}, author={Martin, Andrew and Thuo, Martin}, year={2023}, month={Aug} }
 @article{du_gregory_jamadgni_pauls_chang_dorn_martin_foster_rossini_thuo_2023, title={Spatially Directed Pyrolysis via Thermally Morphing Surface Adducts}, volume={8}, ISSN={["1521-3773"]}, url={https://doi.org/10.1002/anie.202308822}, DOI={10.1002/anie.202308822}, abstractNote={Abstract}, journal={ANGEWANDTE CHEMIE-INTERNATIONAL EDITION}, author={Du, Chuanshen and Gregory, Paul and Jamadgni, Dhanush U. and Pauls, Alana M. and Chang, Julia J. and Dorn, Rick W. and Martin, Andrew and Foster, E. Johan and Rossini, Aaron J. and Thuo, Martin}, year={2023}, month={Aug} }