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Chem. Chem. Phys."],"abstract":"<jats:p>\n                    This article reveals a stacking-dependent odd-layer effect in Janus-Ga\n                    <jats:sub>2<\/jats:sub>\n                    SeTe trilayers, a dramatic contrast in the nonlinear\n                    <jats:italic>d<\/jats:italic>\n                    <jats:sub>33<\/jats:sub>\n                    constant (93.6% in \u03b3[ABC]\n                    <jats:italic>vs<\/jats:italic>\n                    . 15.9% in \u03b3[ACB]), and an external-electric-field induced bandgap transition in \u03b3[ACB].\n                  <\/jats:p>","DOI":"10.1039\/d6cp01137c","type":"journal-article","created":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T07:03:10Z","timestamp":1780297390000},"page":"15015-15024","update-policy":"https:\/\/doi.org\/10.1039\/rsc_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Bandgap transition and second-harmonic generation in ABC and ACB stacked \u03b3-trilayers of Janus-Ga\n                    <sub>2<\/sub>\n                    SeTe"],"prefix":"10.1039","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0979-1596","authenticated-orcid":false,"given":"Fulong","family":"Hu","sequence":"first","affiliation":[{"name":"Institute of Flexible Electronics, Northwestern Polytechnical University, Xi\u2019an 710129, China"},{"name":"Wang Zheng School of Microelectronics and the Materials and Electronics Research Center, Changzhou University, Changzhou 213164, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2390-9968","authenticated-orcid":false,"given":"Xinyu","family":"Zhang","sequence":"additional","affiliation":[{"name":"Institute of Flexible Electronics, Northwestern Polytechnical University, Xi\u2019an 710129, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingyuan","family":"Qiao","sequence":"additional","affiliation":[{"name":"Institute of Flexible Electronics, Northwestern Polytechnical University, Xi\u2019an 710129, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qixuan","family":"Zhong","sequence":"additional","affiliation":[{"name":"Wang Zheng School of Microelectronics and the Materials and Electronics Research Center, Changzhou University, Changzhou 213164, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Flexible Electronics, Northwestern Polytechnical University, Xi\u2019an 710129, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7451-777X","authenticated-orcid":false,"given":"Jingzhi","family":"Shang","sequence":"additional","affiliation":[{"name":"Wang Zheng School of Microelectronics and the Materials and Electronics Research Center, Changzhou University, Changzhou 213164, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"292","published-online":{"date-parts":[[2026]]},"reference":[{"key":"D6CP01137C\/cit1\/1","doi-asserted-by":"crossref","first-page":"163102","DOI":"10.1063\/1.4981877","volume":"110","author":"Guo","year":"2017","journal-title":"Appl. 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