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Detection of Fermi arcs in Weyl semimetals through surface negative refraction

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Chen, Guangze
dc.contributor.author Zilberberg, Oded
dc.contributor.author Chen, Wei
dc.date.accessioned 2020-04-03T09:48:05Z
dc.date.available 2020-04-03T09:48:05Z
dc.date.issued 2020-03-15
dc.identifier.citation Chen , G , Zilberberg , O & Chen , W 2020 , ' Detection of Fermi arcs in Weyl semimetals through surface negative refraction ' , Physical Review B , vol. 101 , no. 12 , 125407 , pp. 1-9 . https://doi.org/10.1103/PhysRevB.101.125407 en
dc.identifier.issn 2469-9950
dc.identifier.issn 2469-9969
dc.identifier.other PURE UUID: 3a25a213-681c-4e60-8ea4-30c738208dfd
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/3a25a213-681c-4e60-8ea4-30c738208dfd
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85083337796&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/41863207/PhysRevB.101.125407_1.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/43643
dc.description.abstract One of the main features of Weyl semimetals is the existence of Fermi arc surface states at their surface, which cannot be realized in pure two-dimensional systems in the absence of many-body interactions. Due to the gapless bulk of the semimetal, it is, however, challenging to observe clear signatures from the Fermi arc surface states. Here, we propose to detect such novel surface states via perfect negative refraction that occurs between two adjacent open surfaces with properly orientated Fermi arcs. Specifically, this phenomenon visibly manifests in nonlocal transport measurement, where the negative refraction generates a return peak in the realspace conductance. This provides a unique signature of the Fermi arc surface states. We discuss the appearance of this peak in both inversion- and time-reversal-symmetric Weyl semimetals, where the latter exhibits conductance oscillations due to multiple negative refraction scattering events. en
dc.format.extent 9
dc.format.extent 1-9
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher American Physical Society
dc.relation.ispartofseries Physical Review B en
dc.relation.ispartofseries Volume 101, issue 12 en
dc.rights openAccess en
dc.title Detection of Fermi arcs in Weyl semimetals through surface negative refraction en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Correlated Quantum Materials (CQM)
dc.contributor.department Eidgenössische Technische Hochschule Zürich
dc.contributor.department Department of Applied Physics en
dc.subject.keyword DISCOVERY
dc.subject.keyword POINTS
dc.subject.keyword NODES
dc.identifier.urn URN:NBN:fi:aalto-202004032673
dc.identifier.doi 10.1103/PhysRevB.101.125407
dc.type.version publishedVersion

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