{"id":1016,"date":"2026-08-01T08:44:47","date_gmt":"2026-08-01T13:44:47","guid":{"rendered":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/?p=1016"},"modified":"2026-08-01T08:46:50","modified_gmt":"2026-08-01T13:46:50","slug":"choudhury-b-kunhung-tsai-p-lu-d-hermawan-l-quigley-j-huang-z-hu-j-gan-n-garcia-godinez-j-p-barnard-b-giri-a-sanjuan-c-martinezsanchez-x-xu-r-e-garcia-h-wang","status":"publish","type":"post","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2026\/08\/01\/choudhury-b-kunhung-tsai-p-lu-d-hermawan-l-quigley-j-huang-z-hu-j-gan-n-garcia-godinez-j-p-barnard-b-giri-a-sanjuan-c-martinezsanchez-x-xu-r-e-garcia-h-wang\/","title":{"rendered":"A. Choudhury, B. Kunhung Tsai, P. Lu, D. Hermawan, L. Quigley, J. Huang, Z. Hu, J. Gan, N. Garcia Godinez, J. P. Barnard, B. Giri, A Sanjuan, C. Mart\u00ednez\u2010S\u00e1nchez, X. Xu, R. E. Garc\u00eda, H. Wang “Tunable Core\u2013Shell Metal Alloy Pillar Design in Vertically Aligned Nanostructures Toward Multifunctionality.” Small Science. 6 (3): e202500622, 2026."},"content":{"rendered":"\n

A. Choudhury, B. Kunhung Tsai, P. Lu, D. Hermawan, L. Quigley, J. Huang, Z. Hu, J. Gan, N. Garcia Godinez, J. P. Barnard, B. Giri, A Sanjuan, C. Mart\u00ednez\u2010S\u00e1nchez, X. Xu, R. E. Garc\u00eda, H. Wang “Tunable Core\u2013Shell Metal Alloy Pillar Design in Vertically Aligned Nanostructures Toward Multifunctionality.<\/em>” Small Science<\/strong>. 6 (3): e202500622, 2026. https:\/\/doi.org\/10.1002\/smsc.202500622<\/a><\/p>\n\n\n\n

Abstract<\/h2>\n\n\n\n

Multiphase nanostructures provide a powerful platform for multifunctional materials by integrating different phases with unique functionalities for coupling effects. Here, we explore an alloy-based vertically aligned nanocomposite (VAN) thin films consisting of Au, Cu, Co, and Ni alloy nanopillars embedded in a BaTiO3<\/sub>\u00a0(BTO) matrix. Core\u2013shell alloy VANs with tunable pillar morphology, ranging from spherical to faceted shapes, are fabricated by pulsed laser deposition by controlling substrate temperature and deposition frequency. These multiphase systems demonstrate tailorable optical anisotropy, tunable hyperbolic response, strong magnetic anisotropy, plasmonic resonances, and magneto-optical coupling, highlighting their potential for spintronic and photonic applications. Calculations show pillar shape morphology is a result of the interplay of surface energies, epitaxial strain, and thermal expansion mismatch between the substrate and the VAN, while spinodal decomposition kinetics of the alloy defines a time\u2013temperature\u2013transformation diagram for controlling the morphology inside the pillar. This work gives insight into the dynamics of phase separation and structure\u2013property relationships in complex alloy VANs allowing for design of next-generation hybrid metamaterials.<\/p>\n","protected":false},"excerpt":{"rendered":"

A. Choudhury, B. Kunhung Tsai, P. Lu, D. Hermawan, L. Quigley, J.…<\/p>\n

Continue reading “A. Choudhury, B. Kunhung Tsai, P. Lu, D. Hermawan, L. Quigley, J. Huang, Z. Hu, J. Gan, N. Garcia Godinez, J. P. Barnard, B. Giri, A Sanjuan, C. Mart\u00ednez\u2010S\u00e1nchez, X. Xu, R. E. Garc\u00eda, H. Wang “Tunable Core\u2013Shell Metal Alloy Pillar Design in Vertically Aligned Nanostructures Toward Multifunctionality.” Small Science. 6 (3): e202500622, 2026.”<\/span>…<\/a><\/div>\n
Continue reading \"A. Choudhury, B. Kunhung Tsai, P. Lu, D. Hermawan, L. Quigley, J. Huang, Z. Hu, J. Gan, N. Garcia Godinez, J. P. Barnard, B. Giri, A Sanjuan, C. Mart\u00ednez\u2010S\u00e1nchez, X. Xu, R. E. Garc\u00eda, H. Wang “Tunable Core\u2013Shell Metal Alloy Pillar Design in Vertically Aligned Nanostructures Toward Multifunctionality.” Small Science. 6 (3): e202500622, 2026.\"<\/span>…<\/a><\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[45],"tags":[85,58,48],"class_list":["post-1016","post","type-post","status-publish","format-standard","hentry","category-papers","tag-metamaterials","tag-nanostructures","tag-phase-field","entry"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/peeeSR-go","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":1000,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2026\/08\/01\/danny-hermawan-alfredo-sanjuan-benson-kunhung-tsai-jialong-huang-r-edwin-garcia-haiyan-wang-complex-oxidemetal-hybrid-metamaterials-with-integrated-magnet\/","url_meta":{"origin":1016,"position":0},"title":"J. Huang, B. Zhang, D. Hermawan, A. Sanjuan, B. Kunhung Tsai, J. Huang, R. E. Garc\u0131\u0301a, H. Wang “Complex Oxide\u2010Metal Hybrid Metamaterials with Integrated Magnetic and Plasmonic Non\u2010noble Metal Nanostructures.” Advanced Functional Materials. 35:(30), 2500741, 2025.","author":"redwing","date":"08\/01\/2026","format":false,"excerpt":"Jijie Huang, Bin Zhang, Danny Hermawan, Alfredo Sanjuan, Benson Kunhung Tsai, Jialong Huang, R Edwin Garc\u0131\u0301a, Haiyan Wang \"Complex Oxide\u2010Metal Hybrid Metamaterials with Integrated Magnetic and Plasmonic Non\u2010noble Metal Nanostructures.\" Advanced Functional Materials. 35 (30), 2500741, 2025. https:\/\/doi.org\/10.1002\/adfm.202500741 Abstract Vertically aligned nanocomposite (VAN) thin films offer exceptional physical properties through\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":998,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2026\/08\/01\/s-zhou-c-shen-h-li-y-zhang-d-estrella-a-sanjuan-d-hermawan-b-tsai-j-huang-x-sheng-a-choudhury-y-chen-r-e-garcia-x-zhang-haiyan-wang-phase-boundary-assisted-flash-sinteri\/","url_meta":{"origin":1016,"position":1},"title":"S. Zhou, C. Shen, H. Li, Y. Zhang, D. Estrella, A. Sanjuan, D. Hermawan, B. Tsai, J. Huang, X. Sheng, A. Choudhury, Y. Chen, R. E. Garc\u00eda, X. Zhang, Haiyan Wang “Phase-Boundary Assisted Flash Sintering of Al2O3-TiO2 Nanocomposites.” Acta Materialia. 302:121612, 2026.","author":"redwing","date":"08\/01\/2026","format":false,"excerpt":"S. Zhou, C. Shen, H. Li, Y. Zhang, D. Estrella, A. Sanjuan, D. Hermawan, B. Tsai, J. Huang, X. Sheng, A. Choudhury, Y. Chen, R. E. Garc\u00eda, X. Zhang, Haiyan Wang \"Phase-Boundary Assisted Flash Sintering of Al2O3-TiO2 Nanocomposites.\" Acta Materialia. 302:121612, 2026. https:\/\/doi.org\/10.1016\/j.actamat.2025.121612 Abstract Al2O3\u00a0is inherently challenging to flash sinter\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":904,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2021\/11\/10\/j-huang-xl-phuah-lm-mcclintock-p-padmanabhan-ksn-vikrant-h-wang-d-zhang-h-wang-p-lu-x-gao-x-sun-x-xu-re-garcia-h-t-chen-x-zhang-h-wang-core-shell-metallic-alloy-nanopillars-in-dielec\/","url_meta":{"origin":1016,"position":2},"title":"J Huang, XL Phuah, LM McClintock, P Padmanabhan, KSN Vikrant, H Wang, D Zhang, H Wang, P Lu, X Gao, X Sun, X Xu, RE Garc\u00eda, H-T Chen, X Zhang, H Wang “Core-shell metallic alloy nanopillars-in- dielectric hybrid metamaterials with magneto-plasmonic coupling.” Materials Today 51: 39-47, 2021.","author":"redwing","date":"11\/10\/2021","format":false,"excerpt":"J Huang, XL Phuah, LM McClintock, P Padmanabhan, KSN Vikrant, H Wang, D Zhang, H Wang, P Lu, X Gao, X Sun, X Xu, RE Garc\u00eda, H-T Chen, X Zhang, H Wang \"Core-shell metallic alloy nanopillars-in- dielectric hybrid metamaterials with magneto-plasmonic coupling.\" Materials Today. 51: 39-47, 2021.\u00a0https:\/\/doi.org\/10.1016\/j.mattod.2021.10.024 Abstract Combining plasmonic\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1020,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2026\/08\/01\/c-liu-c-shen-j-shen-b-k-tsai-y-zhang-y-chen-y-zhang-k-xu-d-paul-j-lu-h-li-z-hu-x-sheng-a-wazeer-s-zhou-r-e-garcia-x-zhang-h-wang-in-situ-studies-on-microstructural-evolution-and-the\/","url_meta":{"origin":1016,"position":3},"title":"C Liu, C Shen, J Shen, B K Tsai, Y Zhang, Y Chen, Y Zhang, K Xu, D Paul, J Lu, H Li, Z Hu, X Sheng, A Wazeer, S Zhou, R E Garc\u00eda, X Zhang, H Wang “In situ Studies on Microstructural Evolution and Thermally Activated Plasticity of (Co, Cu, Mg, Ni, Zn) O High-Entropy Oxide.” Acta Materialia, 122212, 2026.","author":"redwing","date":"08\/01\/2026","format":false,"excerpt":"C Liu, C Shen, J Shen, B K Tsai, Y Zhang, Y Chen, Y Zhang, K Xu, D Paul, J Lu, H Li, Z Hu, X Sheng, A Wazeer, S Zhou, R E Garc\u00eda, X Zhang, H Wang \"In situ Studies on Microstructural Evolution and Thermally Activated Plasticity of (Co,\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":970,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2026\/07\/31\/c-shen-t-niu-b-yang-j-cho-z-shang-t-sun-a-shang-r-e-garcia-h-wang-x-zhang-micromechanical-properties-and-microstructures-of-ac-and-dc-flash-sintered-alumina-materials-science-and-engi\/","url_meta":{"origin":1016,"position":4},"title":"C. Shen, T Niu, B. Yang, J. Cho, Z Shang, T Sun, A Shang, R E Garc\u00eda, H Wang, X Zhang “Micromechanical properties and microstructures of AC and DC flash-sintered alumina.” Materials Science and Engineering: A 866:144631, 2023","author":"redwing","date":"07\/31\/2026","format":false,"excerpt":"C. Shen, T Niu, B. Yang, J. Cho, Z Shang, T Sun, A Shang, R E Garc\u00eda, H Wang, X Zhang \"Micromechanical properties and microstructures of AC and DC flash-sintered alumina.\" Materials Science and Engineering: A 866:144631, 2023. https:\/\/doi.org\/10.1016\/j.msea.2023.144631 Abstract Alumina\u00a0(\u03b1-Al2O3), one of the most widely used\u00a0structural ceramics\u00a0for industrial applications,\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":976,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2026\/07\/31\/a-sanjuan-wh-woodford-y-m-chiang-w-craig-carter-re-garcia-erratumelectrochemical-shock-of-intercalation-electrodes-a-fracture-mechanics-analysis-j-electrochem-soc-157-a\/","url_meta":{"origin":1016,"position":5},"title":"A Sanjuan, WH Woodford, Y-M Chiang, W Craig Carter, RE Garc\u00eda “Erratum:\u201cElectrochemical Shock\u201d of Intercalation Electrodes: A Fracture Mechanics Analysis [J. Electrochem. Soc., 157, A1052 (2010)].”Journal of The Electrochemical Society. 170(9): 099001, 2023.","author":"redwing","date":"07\/31\/2026","format":false,"excerpt":"A Sanjuan, WH Woodford, Y-M Chiang, W Craig Carter, RE Garc\u00eda \"Erratum:\u201cElectrochemical Shock\u201d of Intercalation Electrodes: A Fracture Mechanics Analysis [J. Electrochem. Soc., 157, A1052 (2010)].\" Journal of The Electrochemical Society. 170(9): 099001, 2023. https:\/\/doi.org\/10.1149\/1945-7111\/acf346","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts\/1016","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/comments?post=1016"}],"version-history":[{"count":2,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts\/1016\/revisions"}],"predecessor-version":[{"id":1019,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts\/1016\/revisions\/1019"}],"wp:attachment":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/media?parent=1016"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/categories?post=1016"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/tags?post=1016"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}