Effect of magnetic zigzag edges in graphene-like nanoribbons on the thermoelectric power factor

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This study shows that magnetic edge states of graphene-like nanoribbons enhance effectively the thermoelectric performance. This is due to the antiparallel alignment of magnetic moments on opposite zigzag edges and the confinement effect, which jointly lead to the appearance of a gap in the electronic energy spectrum. Consequently, the Seebeck coefficient as well as the thermoelectric power factor get strongly enhanced (with respect to other alignment cases) at room temperature and energies not far away from the charge neutrality point. Moreover the corresponding figure of merit (ZT) is also improved as a result of the reduced electronic thermal conductance.


Original languageEnglish
Pages (from-to)535-537
Number of pages3
JournalActa Physica Polonica A
Issue number3
Publication statusPublished - Mar 2018


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