{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T13:08:06Z","timestamp":1788959286619,"version":"build-2803163510"},"reference-count":31,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T00:00:00Z","timestamp":1788912000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Startup Foundation for Doctors of Yan\u2019an University","award":["YDBK2024-53"],"award-info":[{"award-number":["YDBK2024-53"]}]},{"award":["YDBK2024-53"],"award-info":[{"award-number":["YDBK2024-53"]}],"id":[{"id":"https:\/\/ror.org\/01dyr7034","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Natural Science Foundation of Shaanxi Province, China","award":["2026JC-YBQN-0034"],"award-info":[{"award-number":["2026JC-YBQN-0034"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>SmNiO3 thin films on PMN-PT ferroelectric substrates enable electrically switchable strain engineering, an advantage over permanently fixed lattice-mismatch strain. However, strain-engineered resistive switching in SmNiO3 via ferroelectric substrates remains largely unexplored. Here, by stabilizing high-quality epitaxial SmNiO3 films on (011)-cut PMN-PT through a LaAlO3\/SrTiO3 graded buffer interface, we demonstrate dual-mode resistive modulation in SmNiO3\/PMN-PT heterostructures: reversible butterfly-shaped hysteresis under bipolar fields arising from dynamic electrostrain, and nonvolatile switching through non-180\u00b0 ferroelastic domain reorientation. Moderate heating to 75 \u00b0C boosts the resistance modulation, correlated with enhanced strain output from the PMN-PT substrate near its phase transition. At the same bias of 12 kV\/cm, the modulation increases from \u22126.4% at 25 \u00b0C to \u221211.9%; even at only 6 kV\/cm, the modulation reaches \u22126.7%, exceeding the room-temperature value at 12 kV\/cm. These results demonstrate the potential of SmNiO3\/PMN-PT heterostructures for dual-mode resistive switching, integrating both volatile and nonvolatile modulation within a single material system through a thermally enhanced strain-coupling mechanism. This work serves as a proof-of-concept demonstration for future exploration in neuromorphic applications.<\/jats:p>","DOI":"10.3390\/ma19183838","type":"journal-article","created":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T12:26:11Z","timestamp":1788956771000},"page":"3838","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Thermally Enhanced Dual-Mode Resistive Switching via Interfacial Strain Engineering in SmNiO3\/PMN-PT Heterostructures"],"prefix":"10.3390","volume":"19","author":[{"given":"Jianfeng","family":"Yang","sequence":"first","affiliation":[{"name":"Shaanxi Key Laboratory of Intelligent Processing for Big Energy Data, School of Physics and Electronic Information, Yan\u2019an University, Yan\u2019an 716000, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"methodology","vocabulary":"credit"},{"role":"validation","vocabulary":"credit"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"investigation","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"},{"role":"visualization","vocabulary":"credit"}]},{"given":"Qin","family":"Du","sequence":"additional","affiliation":[{"name":"Shaanxi Key Laboratory of Intelligent Processing for Big Energy Data, School of Physics and Electronic Information, Yan\u2019an University, Yan\u2019an 716000, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"conceptualization","vocabulary":"credit"},{"role":"methodology","vocabulary":"credit"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"investigation","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"},{"role":"visualization","vocabulary":"credit"},{"role":"supervision","vocabulary":"credit"},{"role":"funding-acquisition","vocabulary":"credit"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"026701","DOI":"10.7498\/aps.68.20181513","article-title":"Electrical conductivity and infrared ray photoconductivity for lattice distorted SmNiO3 perovskite oxide film","volume":"68","author":"Hu","year":"2019","journal-title":"Acta Phys. 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