{"title":"Plasmon-induced high magnetic circular dichroism (MCD) activity of intrinsically metallic rhenium trioxide (ReO3) nanoparticles in the visible region","authors":"Shin Uchiyama, Hiroshi Yao","doi":"10.1016/j.cplett.2025.141917","DOIUrl":null,"url":null,"abstract":"<div><div>We investigate optical and magnetic circular dichroism (MCD) properties of chemically synthesized ReO<sub>3</sub> nanoparticles with cube-like morphology. The nanoparticles show a broad extinction peak at 730–770 nm ascribable to the localized surface plasmon resonance (LSPR) response, whereas a plasmonic bisignate MCD signal with profile asymmetry is found. The asymmetric MCD profile originates from the nanoparticle aggregation. Notably, despite a significantly broad visible-resonant spectral linewidth of ReO<sub>3</sub>, the maximum MCD activity is about twice as high as that of typical Au nanoparticles, suggesting that ReO<sub>3</sub> can be a promising candidate for alternative magnetoplasmonic materials other than Au in the visible region.</div></div>","PeriodicalId":273,"journal":{"name":"Chemical Physics Letters","volume":"864 ","pages":"Article 141917"},"PeriodicalIF":2.8000,"publicationDate":"2025-01-26","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/S0009261425000570","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
We investigate optical and magnetic circular dichroism (MCD) properties of chemically synthesized ReO3 nanoparticles with cube-like morphology. The nanoparticles show a broad extinction peak at 730–770 nm ascribable to the localized surface plasmon resonance (LSPR) response, whereas a plasmonic bisignate MCD signal with profile asymmetry is found. The asymmetric MCD profile originates from the nanoparticle aggregation. Notably, despite a significantly broad visible-resonant spectral linewidth of ReO3, the maximum MCD activity is about twice as high as that of typical Au nanoparticles, suggesting that ReO3 can be a promising candidate for alternative magnetoplasmonic materials other than Au in the visible region.
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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