Magneto-spectroscopy studies of graphite nanoplatelet films

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The magneto-optical properties of graphite nanoplatelet films in the THz frequency range have been investigated. The room-temperature THz spectrum of graphite nanoplatelets shows a free carrier absorption at zero frequency with an electronic scattering rate of 175 cm -1 (3.3×10 13 rad/s) and plasma frequency of 1675 cm -1. The lack of a major change in Drude plasma frequency down to 4.2 K implies that any band gaps in graphite nanoplatelets are less than 1 meV. The 300 K magneto-transmission contrast is as large as 60% near 1 THz at 10 T. The results are potentially useful for magnetic memory applications away from the dc limit.

Original languageEnglish
Pages (from-to)3476-3477
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume324
Issue number21
DOIs
Publication statusPublished - 2012 Oct 1

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Graphite
graphite
Spectroscopy
plasma frequencies
spectroscopy
Plasmas
magnetic storage
Energy gap
Optical properties
frequency ranges
Scattering
Data storage equipment
optical properties
room temperature
scattering
electronics
Temperature

Keywords

  • Graphene
  • Optical property

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Magneto-spectroscopy studies of graphite nanoplatelet films. / Liu, Hsiang Lin.

In: Journal of Magnetism and Magnetic Materials, Vol. 324, No. 21, 01.10.2012, p. 3476-3477.

Research output: Contribution to journalArticle

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