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A Modified Drude–Lorentz Model That Enables Taking into Account Topological Characteristics of a Medium

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dc.contributor.authorLyashko, E. I.
dc.contributor.authorMaimistov, A. I.
dc.date.accessioned2024-11-21T15:41:16Z
dc.date.available2024-11-21T15:41:16Z
dc.date.issued2019
dc.description.abstract© 2019, Pleiades Publishing, Ltd.Abstract: The Drude–Lorentz model, which makes it possible to describe a nonlinear response of a dielectric or conducting medium, can be suited for the description of nonlinear nonresonant responses of some exotic media: topological insulators, a Weil semimetal, or a Dirac metal. A generalized Drude–Lorentz model and its simplified version, in which topological effects are taken into account to a minimum extent, are presented. As an example of application of the simplified model, the second-order nonlinear conductivity is derived, which is responsible for the second harmonic generation and the effect of optical rectification. It is shown that the ratio of the topological conductivity to the ordinary linear conductivity contains constants that are proportional to the fine structure constant and the axion field gradient.
dc.format.extentС. 871-877
dc.identifier.citationLyashko, E. I. A Modified Drude–Lorentz Model That Enables Taking into Account Topological Characteristics of a Medium / Lyashko, E.I., Maimistov, A.I. // Optics and Spectroscopy. - 2019. - 127. - № 5. - P. 871-877. - 10.1134/S0030400X19110195
dc.identifier.doi10.1134/S0030400X19110195
dc.identifier.urihttps://www.doi.org/10.1134/S0030400X19110195
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85077094001&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000511122800017
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/19074
dc.relation.ispartofOptics and Spectroscopy
dc.titleA Modified Drude–Lorentz Model That Enables Taking into Account Topological Characteristics of a Medium
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue5
oaire.citation.volume127
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relation.isOrgUnitOfPublication.latestForDiscoverydcdb137c-0528-46a5-841b-780227a67cce
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