English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report a numerical study on Aharonov-Bohm (AB) effect and parity selectivetunneling in pn junctions based on zigzag graphene nanoribbon rings. We findthat when applying a magnetic field to the ring, the AB interference canreverse the parity symmetry of incoming waves and hence can strongly modulatethe parity selective transmission through the system. Therefore, thetransmission between two states of different parity exhibits the ABoscillations with a \pi-phase shift, compared to the case of states of sameparity. On this basis, it is shown that interesting effects such as giant (bothpositive and negative) magnetoresistance and strong negative differentialconductance can be achieved in this structure. Our study thus presents a newproperty of the AB interference, which could be helpful to further understandthe transport properties of graphene mesoscopic-systems.

Interplay between Aharonov-Bohm interference and parity selective tunneling in zigzag graphene nanoribbon rings