Helicoidal graphene nanoribbons: Chiraltronics

Atanasov, Victor; Saxena, Avadh

doi:10.1103/PhysRevB.92.035440

Title: Helicoidal graphene nanoribbons: Chiraltronics

Journal Article · Wed Jul 29 00:00:00 EDT 2015 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.92.035440· OSTI ID:1414081

Atanasov, Victor ^[1];

^[2]

Sofia Univ. (Bulgaria). Dept. of Condensed Matter Physics
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Here, we present a calculation of the effective geometry-induced quantum potential for the carriers in graphene shaped as a helicoidal nanoribbon. In this geometry the twist of the nanoribbon plays the role of an effective transverse electric field in graphene and this is reminiscent of the Hall effect. But, this effective electric field has a different sign for the two isospin states and translates into a mechanism to separate the two chiral species on the opposing rims of the nanoribbon. Finally, isospin transitions are expected with the emission or absorption of microwave radiation which could be adjusted to be in the THz region.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1414081

Alternate ID(s):: OSTI ID: 1204693

Report Number(s):: LA-UR-15-22193; PRBMDO; TRN: US1800616

Journal Information:: Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 3; ISSN 1098-0121

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 20 works

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