Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/153641
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dc.contributor.authorShi, Li-kunen_US
dc.contributor.authorZhang, Dongen_US
dc.contributor.authorChang, Kaien_US
dc.contributor.authorSong, Justin Chien Wenen_US
dc.date.accessioned2021-12-13T05:27:26Z-
dc.date.available2021-12-13T05:27:26Z-
dc.date.issued2021-
dc.identifier.citationShi, L., Zhang, D., Chang, K. & Song, J. C. W. (2021). Geometric photon-drag effect and nonlinear shift current in centrosymmetric crystals. Physical Review Letters, 126(19), 197402-. https://dx.doi.org/10.1103/PhysRevLett.126.197402en_US
dc.identifier.issn0031-9007en_US
dc.identifier.urihttps://hdl.handle.net/10356/153641-
dc.description.abstractThe nonlinear shift current, also known as the bulk photovoltaic current generated by linearly polarized light, has long been known to be absent in crystals with inversion symmetry. Here we argue that a nonzero shift current in centrosymmetric crystals can be activated by a photon-drag effect. Photon-drag shift current proceeds from a "shift current dipole" (a geometric quantity characterizing interband transitions) and manifests a purely transverse response in centrosymmetric crystals. This transverse nature proceeds directly from the shift-vector's pseudovector nature under mirror operation and underscores its intrinsic geometric origin. Photon-drag shift current can be greatly enhanced by coupling to polaritons and provides a new and sensitive tool to interrogate the subtle interband coherences of materials with inversion symmetry previously thought to be inaccessible via photocurrent probes.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNanyang Technological Universityen_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relationNRF-NRFF2016-05en_US
dc.relationMOE2018-T3-1-002en_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.relation.uri10.21979/N9/BTI9H2en_US
dc.rightsPublished by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Societyen_US
dc.subjectScience::Physicsen_US
dc.titleGeometric photon-drag effect and nonlinear shift current in centrosymmetric crystalsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.organizationInstitute of High Performance Computing, A*STARen_US
dc.identifier.doi10.1103/PhysRevLett.126.197402-
dc.description.versionPublished versionen_US
dc.identifier.pmid34047609-
dc.identifier.scopus2-s2.0-85106387910-
dc.identifier.issue19en_US
dc.identifier.volume126en_US
dc.identifier.spage197402en_US
dc.subject.keywordsSpinen_US
dc.subject.keywordsTransitionen_US
dc.description.acknowledgementL.-K. S. gratefully acknowledges helpful conversations with Inti Sodemann. J. C. W. S. acknowledges support from the National Research Foundation (NRF), Singapore under its NRF fellowship program Award No. NRF-NRFF2016- 05, the Ministry of Education, Singapore under its MOE AcRF Tier 3 Grant No. MOE2018-T3-1-002, and a Nanyang Technological University start-up grant (Grant No. NTU-SUG). K. C. is supported by the MOST of China No. 2017YFA0303400, the Chinese Academy of Sciences No. QYZDJSSW-SYS001, No. XDB28000000 and No. XDPB22.en_US
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