Spin and band-gap engineering in doped graphene nanoribbons

Narjes Gorjizadeh, Amir A. Farajian, Keivan Esfarjani, and Yoshiyuki Kawazoe
Phys. Rev. B 78, 155427 – Published 27 October 2008

Abstract

We investigate electronic and magnetic properties of graphene nanoribbons whose edges are doped by s-, p-, and d-type atoms. The edges of the ribbon are chemically active and can accommodate appropriate dopants to obtain different electronic and magnetic properties, all with the same geometrical structure of the ribbon. Dopings by Mg and B turn the semiconducting armchair ribbon into a metal, while Fe and Mn change it into a ferromagnet with a large magnetic moment. Doping of zigzag ribbon and implications for transport characteristics are also discussed. Our results suggest that the present structures are suitable for nanoelectronic and spintronic applications.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 11 August 2008

DOI:https://doi.org/10.1103/PhysRevB.78.155427

©2008 American Physical Society

Authors & Affiliations

Narjes Gorjizadeh1,*, Amir A. Farajian2, Keivan Esfarjani3, and Yoshiyuki Kawazoe1

  • 1Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
  • 2Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio 45435, USA
  • 3Department of Physics, University of California–Santa Cruz, Santa Cruz, California 95064, USA

  • *narjes@imr.edu

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 78, Iss. 15 — 15 October 2008

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×