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Article: Vortical Reflection and Spiraling Fermi Arcs with Weyl Metamaterials

TitleVortical Reflection and Spiraling Fermi Arcs with Weyl Metamaterials
Authors
Issue Date2020
Citation
Physical Review Letters, 2020, v. 125, n. 9, article no. 093904 How to Cite?
Abstract© 2020 American Physical Society. Scatterings and transport in Weyl semimetals have caught growing attention in condensed matter physics, with observables including chiral zero modes and the associated magnetoresistance and chiral magnetic effects. Measurement of electrical conductance is usually performed in these studies, which, however, cannot resolve the momentum of electrons, preventing direct observation of the phase singularities in scattering matrix associated with Weyl point. Here we experimentally demonstrate a helical phase distribution in the angle (momentum) resolved scattering matrix of electromagnetic waves in a photonic Weyl metamaterial. It further leads to spiraling Fermi arcs in an air gap sandwiched between a Weyl metamaterial and a metal plate. Benefiting from the alignment-free feature of angular vortical reflection, our findings establish a new platform in manipulating optical angular momenta with photonic Weyl systems.
Persistent Identifierhttp://hdl.handle.net/10722/295180
ISSN
2020 Impact Factor: 9.161
2020 SCImago Journal Rankings: 3.688
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCheng, Hua-
dc.contributor.authorGao, Wenlong-
dc.contributor.authorBi, Yangang-
dc.contributor.authorLiu, Wenwei-
dc.contributor.authorLi, Zhancheng-
dc.contributor.authorGuo, Qinghua-
dc.contributor.authorYang, Yang-
dc.contributor.authorYou, Oubo-
dc.contributor.authorFeng, Jing-
dc.contributor.authorSun, Hongbo-
dc.contributor.authorTian, Jianguo-
dc.contributor.authorChen, Shuqi-
dc.contributor.authorZhang, Shuang-
dc.date.accessioned2021-01-05T04:59:14Z-
dc.date.available2021-01-05T04:59:14Z-
dc.date.issued2020-
dc.identifier.citationPhysical Review Letters, 2020, v. 125, n. 9, article no. 093904-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/295180-
dc.description.abstract© 2020 American Physical Society. Scatterings and transport in Weyl semimetals have caught growing attention in condensed matter physics, with observables including chiral zero modes and the associated magnetoresistance and chiral magnetic effects. Measurement of electrical conductance is usually performed in these studies, which, however, cannot resolve the momentum of electrons, preventing direct observation of the phase singularities in scattering matrix associated with Weyl point. Here we experimentally demonstrate a helical phase distribution in the angle (momentum) resolved scattering matrix of electromagnetic waves in a photonic Weyl metamaterial. It further leads to spiraling Fermi arcs in an air gap sandwiched between a Weyl metamaterial and a metal plate. Benefiting from the alignment-free feature of angular vortical reflection, our findings establish a new platform in manipulating optical angular momenta with photonic Weyl systems.-
dc.languageeng-
dc.relation.ispartofPhysical Review Letters-
dc.titleVortical Reflection and Spiraling Fermi Arcs with Weyl Metamaterials-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevLett.125.093904-
dc.identifier.pmid32915597-
dc.identifier.scopuseid_2-s2.0-85090878874-
dc.identifier.volume125-
dc.identifier.issue9-
dc.identifier.spagearticle no. 093904-
dc.identifier.epagearticle no. 093904-
dc.identifier.eissn1079-7114-
dc.identifier.isiWOS:000563715500007-
dc.identifier.issnl0031-9007-

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