Manifold electronic structure transition of BNC biribbons

Yingcai Fan, Mingwen Zhao, Xuejuan Zhang, Zhenhai Wang, Tao He, Huihao Xia, Xiangdong Liu

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Using first principles calculations, we investigate the electronic and magnetic properties of BNC biribbons, a laterally-heterostructured nanoribbon constructed by joining a graphene nanoribbon (GNR) and a BN nanoribbon (BNNR) with zigzag edges. We find that the spin-polarization and electronic structures of the biribbons can be well-tuned by changing the width of the GNR, undergoing manifold transitions from semiconducting to half-metal and ferromagnetic metal. The critical points of GNR width to induce the transitions depend on the interface type (B/C or C/N) rather than the BNNR width. The ground states of metallic BNC biribbons are spin-polarized, forming non-zero magnetic moments. The tunable electronic structures and ferromagnetic ground states make the BNC biribbons promising candidate nanomaterials for building nanoscaled spintronic devices.

Original languageEnglish
Article number034314
JournalJournal of Applied Physics
Volume110
Issue number3
DOIs
Publication statusPublished - 1 Aug 2011
Externally publishedYes

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