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Raman Optical Activity of 1T-TaS2

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cris.lastimport.scopus2024-02-12T20:34:09Z
dc.abstract.plMeasurements of optical activity can be readily performed in transparent matter by means of a rotation of transmitted light polarization. In the case of opaque bulk materials, such measurements cannot be performed, making it difficult to assess possible chiral properties. In this work, we present full angular polarization dependencies of the Raman modes of bulk 1T-TaS2, which has recently been suggested to have chiral properties after pulsed laser excitation. We found that a mechanical rotation of the sample does not alter polarization-resolved Raman spectra, which can only be explained by introducing an antisymmetric Raman tensor, frequently used to describe Raman optical activity (ROA). Raman spectra obtained under circularly polarized excitation demonstrate that 1T-TaS2 indeed shows ROA, providing strong evidence that 1T-TaS2 is chiral under the used conditions of laser excitation. Our results suggest that ROA may be used as a universal tool to study chiral properties of quantum materials
dc.affiliationUniwersytet Warszawski
dc.contributor.authorLutsyk, Iaroslav
dc.contributor.authorKowalczyk, Paweł
dc.contributor.authorWysmołek, Andrzej
dc.contributor.authorStępniewski, Roman
dc.contributor.authorBinder, Johannes
dc.contributor.authorFurman, Magdalena
dc.contributor.authorŁacińska, Ewa
dc.date.accessioned2024-01-25T18:46:11Z
dc.date.available2024-01-25T18:46:11Z
dc.date.copyright2022-04-03
dc.date.issued2022
dc.description.accesstimeAT_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number7
dc.description.versionFINAL_PUBLISHED
dc.description.volume22
dc.identifier.doi10.1021/ACS.NANOLETT.1C04990
dc.identifier.issn1530-6984
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/117835
dc.identifier.weblinkhttps://pubs.acs.org/doi/pdf/10.1021/acs.nanolett.1c04990
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofNano Letters
dc.relation.pages2835-2842
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.encharge density waves
dc.subject.enRaman optical activity,
dc.subject.enresonant effects
dc.subject.enpolarization-resolved experiments
dc.subject.plFale gęstości ładunku
dc.subject.plRamanowska aktywność optyczna
dc.subject.plefekty rezonansowe
dc.subject.pleksperymenty polaryzacyjne
dc.titleRaman Optical Activity of 1T-TaS2
dc.typeJournalArticle
dspace.entity.typePublication