Magneto collective excitations of armchair carbon nanotubes

C. W. Chiu, F. L. Shyu, C. P. Chang, R. B. Chen, Min-Fa Lin

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

Magneto single-particle and collective excitations of armchair carbon nanotubes are studied within the RPA. They strongly depend on the angular momentum (L), the momentum (q), and the magnitude (φ) and the direction (α) of magnetic field. The L = 0 mode has lower excitation frequencies, higher excitation intensity, stronger q-dependence, and smaller critical momentum, as compared with the L = 1 mode. The plasmon frequency of L=0 mode increases (decreases) with φ(α), while the strength exhibits the opposite behavior.

Original languageEnglish
Pages (from-to)700-703
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume22
Issue number1-3
DOIs
Publication statusPublished - 2004 Apr 1
Event15th International Conference on ELectronic Propreties - Nara, Japan
Duration: 2003 Jul 142003 Jul 18

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Carbon Nanotubes
Carbon nanotubes
Momentum
carbon nanotubes
Angular momentum
excitation
momentum
Magnetic fields
angular momentum
magnetic fields
Direction compound

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Cite this

Chiu, C. W. ; Shyu, F. L. ; Chang, C. P. ; Chen, R. B. ; Lin, Min-Fa. / Magneto collective excitations of armchair carbon nanotubes. In: Physica E: Low-Dimensional Systems and Nanostructures. 2004 ; Vol. 22, No. 1-3. pp. 700-703.
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Magneto collective excitations of armchair carbon nanotubes. / Chiu, C. W.; Shyu, F. L.; Chang, C. P.; Chen, R. B.; Lin, Min-Fa.

In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 22, No. 1-3, 01.04.2004, p. 700-703.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Magneto collective excitations of armchair carbon nanotubes

AU - Chiu, C. W.

AU - Shyu, F. L.

AU - Chang, C. P.

AU - Chen, R. B.

AU - Lin, Min-Fa

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N2 - Magneto single-particle and collective excitations of armchair carbon nanotubes are studied within the RPA. They strongly depend on the angular momentum (L), the momentum (q), and the magnitude (φ) and the direction (α) of magnetic field. The L = 0 mode has lower excitation frequencies, higher excitation intensity, stronger q-dependence, and smaller critical momentum, as compared with the L = 1 mode. The plasmon frequency of L=0 mode increases (decreases) with φ(α), while the strength exhibits the opposite behavior.

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