{"title":"Enhanced photocurrent and spin current in Two-Dimensional MnNCl-MnNI lateral heterostructures","authors":"","doi":"10.1016/j.cplett.2024.141735","DOIUrl":null,"url":null,"abstract":"<div><div>First-principles calculations and quantum transport simulations were performed to investigate the photogalvanic effect (PGE) in the high magnetic transition temperature ferromagnetic two-dimensional (2D) semiconductor MnNCl and the 2D lateral MnNI-MnNCl heterostructure. The MnNI-MnNCl heterostructure exhibits significantly enhanced non-centrosymmetric properties, resulting in increased PGE photocurrent and spin current around 0.4 eV. Compared to MnNCl, the photocurrent is amplified by 4–6 orders of magnitude and demonstrates excellent polarization sensitivity, with an extinction ratio reaching 83.92. These results underscore the potential of MnNCl-MnNI lateral heterostructures for use in self-powered, polarization-sensitive infrared detectors.</div></div>","PeriodicalId":273,"journal":{"name":"Chemical Physics Letters","volume":null,"pages":null},"PeriodicalIF":2.8000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Physics Letters","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0009261424006778","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
First-principles calculations and quantum transport simulations were performed to investigate the photogalvanic effect (PGE) in the high magnetic transition temperature ferromagnetic two-dimensional (2D) semiconductor MnNCl and the 2D lateral MnNI-MnNCl heterostructure. The MnNI-MnNCl heterostructure exhibits significantly enhanced non-centrosymmetric properties, resulting in increased PGE photocurrent and spin current around 0.4 eV. Compared to MnNCl, the photocurrent is amplified by 4–6 orders of magnitude and demonstrates excellent polarization sensitivity, with an extinction ratio reaching 83.92. These results underscore the potential of MnNCl-MnNI lateral heterostructures for use in self-powered, polarization-sensitive infrared detectors.
期刊介绍：
Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage.
Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.
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