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Article: Continuous topological transition from metal to dielectric

TitleContinuous topological transition from metal to dielectric
Authors
KeywordsZak phase
Plasmonics
Metamaterials
Topology
Issue Date2020
Citation
Proceedings of the National Academy of Sciences of the United States of America, 2020, v. 117, n. 29, p. 16739-16742 How to Cite?
AbstractMetal and dielectric have long been thought as two different states of matter possessing highly contrasting electric and optical properties. A metal is a material highly reflective to electromagnetic waves for frequencies up to the optical region. In contrast, a dielectric is transparent to electromagnetic waves. These two different classical electrodynamic properties are distinguished by different signs of the real part of permittivity: The metal has a negative sign while the dielectric has a positive one. Here, we propose a different topological understanding of metal and dielectric. By considering metal and dielectric as just two limiting cases of a periodic metal-dielectric layered metamaterial, from which a metal can continuously transform into a dielectric by varying the metal filling ratio from 1 to 0, we further demonstrate the abrupt change of a topological invariant at a certain point during this transition, classifying the metamaterials into metallic state and dielectric state. The topological phase transition from the metallic state to the dielectric state occurs when the filling ratio is one-half. These two states generalize our previous understanding of metal and dielectric: The metamaterial with metal filling ratio larger/smaller than one-half is named as the “generalized metal/dielectric.” Interestingly, the surface plasmon polariton (SPP) at a metal/dielectric interface can be understood as the limiting case of a topological edge state.
Persistent Identifierhttp://hdl.handle.net/10722/295174
ISSN
2023 Impact Factor: 9.4
2023 SCImago Journal Rankings: 3.737
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYang, Fan-
dc.contributor.authorMa, Shaojie-
dc.contributor.authorDing, Kun-
dc.contributor.authorZhang, Shuang-
dc.contributor.authorPendry, J. B.-
dc.date.accessioned2021-01-05T04:59:13Z-
dc.date.available2021-01-05T04:59:13Z-
dc.date.issued2020-
dc.identifier.citationProceedings of the National Academy of Sciences of the United States of America, 2020, v. 117, n. 29, p. 16739-16742-
dc.identifier.issn0027-8424-
dc.identifier.urihttp://hdl.handle.net/10722/295174-
dc.description.abstractMetal and dielectric have long been thought as two different states of matter possessing highly contrasting electric and optical properties. A metal is a material highly reflective to electromagnetic waves for frequencies up to the optical region. In contrast, a dielectric is transparent to electromagnetic waves. These two different classical electrodynamic properties are distinguished by different signs of the real part of permittivity: The metal has a negative sign while the dielectric has a positive one. Here, we propose a different topological understanding of metal and dielectric. By considering metal and dielectric as just two limiting cases of a periodic metal-dielectric layered metamaterial, from which a metal can continuously transform into a dielectric by varying the metal filling ratio from 1 to 0, we further demonstrate the abrupt change of a topological invariant at a certain point during this transition, classifying the metamaterials into metallic state and dielectric state. The topological phase transition from the metallic state to the dielectric state occurs when the filling ratio is one-half. These two states generalize our previous understanding of metal and dielectric: The metamaterial with metal filling ratio larger/smaller than one-half is named as the “generalized metal/dielectric.” Interestingly, the surface plasmon polariton (SPP) at a metal/dielectric interface can be understood as the limiting case of a topological edge state.-
dc.languageeng-
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of America-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectZak phase-
dc.subjectPlasmonics-
dc.subjectMetamaterials-
dc.subjectTopology-
dc.titleContinuous topological transition from metal to dielectric-
dc.typeArticle-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1073/pnas.2003171117-
dc.identifier.pmid32636263-
dc.identifier.pmcidPMC7382237-
dc.identifier.scopuseid_2-s2.0-85088880525-
dc.identifier.volume117-
dc.identifier.issue29-
dc.identifier.spage16739-
dc.identifier.epage16742-
dc.identifier.eissn1091-6490-
dc.identifier.isiWOS:000557946500009-
dc.identifier.issnl0027-8424-

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