Theoretical Prediction of a Giant Anisotropic Magnetoresistance in Carbon Nanoscrolls

Ching Hao Chang, Carmine Ortix

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Snake orbits are trajectories of charge carriers curving back and forth that form at an interface where either the magnetic field direction or the charge carrier type are inverted. In ballistic samples, their presence is manifested in the appearance of magnetoconductance oscillations at small magnetic fields. Here we show that signatures of snake orbits can also be found in the opposite diffusive transport regime. We illustrate this by studying the classical magnetotransport properties of carbon tubular structures subject to relatively weak transversal magnetic fields where snake trajectories appear in close proximity to the zero radial field projections. In carbon nanoscrolls, the formation of snake orbits leads to a strongly directional dependent positive magnetoresistance with an anisotropy up to 80%.

Original languageEnglish
Pages (from-to)3076-3080
Number of pages5
JournalNano letters
Volume17
Issue number5
DOIs
Publication statusPublished - 2017 May 10

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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