Enhanced Shubnikov-De Haas Oscillation in Nitrogen-Doped Graphene

Han Chun Wu, Mourad Abid, Ye Cun Wu, Cormac Ó Coileáin, Askar Syrlybekov, Jun Feng Han, Cheng Lin Heng, Huajun Liu, Mohamed Abid, Igor Shvets

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

N-doped graphene displays many interesting properties compared with pristine graphene, which makes it a potential candidate in many applications. Here, we report that the Shubnikov-de Haas (SdH) oscillation effect in graphene can be enhanced by N-doping. We show that the amplitude of the SdH oscillation increases with N-doping and reaches around 5k ω under a field of 14 T at 10 K for highly N-doped graphene, which is over 1 order of magnitude larger than the value found for pristine graphene devices with the same geometry. Moreover, in contrast to the well-established standard Lifshitz-Kosevich theory, the amplitude of the SdH oscillation decreases linearly with increasing temperature and persists up to a temperature of 150 K. Our results also show that the magnetoresistance (MR) in N-doped graphene increases with increasing temperature. Our results may be useful for the application of N-doped graphene in magnetic devices.

Original languageEnglish
Pages (from-to)7207-7214
Number of pages8
JournalACS Nano
Volume9
Issue number7
DOIs
Publication statusPublished - Jul 28 2015
Externally publishedYes

Fingerprint

Graphite
Graphene
graphene
Nitrogen
nitrogen
oscillations
Doping (additives)
Magnetic devices
Magnetoresistance
Temperature
temperature
Geometry
geometry

Keywords

  • magnetoresistance
  • N-doped graphene
  • Shubnikov-de Haas oscillation
  • substitutional doping
  • two-dimensional transport

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Wu, H. C., Abid, M., Wu, Y. C., Ó Coileáin, C., Syrlybekov, A., Han, J. F., ... Shvets, I. (2015). Enhanced Shubnikov-De Haas Oscillation in Nitrogen-Doped Graphene. ACS Nano, 9(7), 7207-7214. https://doi.org/10.1021/acsnano.5b02020

Enhanced Shubnikov-De Haas Oscillation in Nitrogen-Doped Graphene. / Wu, Han Chun; Abid, Mourad; Wu, Ye Cun; Ó Coileáin, Cormac; Syrlybekov, Askar; Han, Jun Feng; Heng, Cheng Lin; Liu, Huajun; Abid, Mohamed; Shvets, Igor.

In: ACS Nano, Vol. 9, No. 7, 28.07.2015, p. 7207-7214.

Research output: Contribution to journalArticle

Wu, HC, Abid, M, Wu, YC, Ó Coileáin, C, Syrlybekov, A, Han, JF, Heng, CL, Liu, H, Abid, M & Shvets, I 2015, 'Enhanced Shubnikov-De Haas Oscillation in Nitrogen-Doped Graphene', ACS Nano, vol. 9, no. 7, pp. 7207-7214. https://doi.org/10.1021/acsnano.5b02020
Wu HC, Abid M, Wu YC, Ó Coileáin C, Syrlybekov A, Han JF et al. Enhanced Shubnikov-De Haas Oscillation in Nitrogen-Doped Graphene. ACS Nano. 2015 Jul 28;9(7):7207-7214. https://doi.org/10.1021/acsnano.5b02020
Wu, Han Chun ; Abid, Mourad ; Wu, Ye Cun ; Ó Coileáin, Cormac ; Syrlybekov, Askar ; Han, Jun Feng ; Heng, Cheng Lin ; Liu, Huajun ; Abid, Mohamed ; Shvets, Igor. / Enhanced Shubnikov-De Haas Oscillation in Nitrogen-Doped Graphene. In: ACS Nano. 2015 ; Vol. 9, No. 7. pp. 7207-7214.
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