Spectrum of localized states in graphene quantum dots and wires

V. V. Zalipaev, D. N. Maksimov, C. M. Linton, F. V. Kusmartsev

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We developed semiclassical method and show that any smooth potential in graphene describing elongated a quantum dot or wire may behave as a barrier or as a trapping well or as a double barrier potential, Fabry-Perot structure, for 1D Schrödinger equation. The energy spectrum of quantum wires has been found and compared with numerical simulations. We found that there are two types of localized states, stable and metastable, having finite life time. These life times are calculated, as is the form of the localized wave functions which are exponentially decaying away from the wire in the perpendicular direction.

Original languageBritish English
Pages (from-to)216-221
Number of pages6
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume377
Issue number3-4
DOIs
StatePublished - 3 Jan 2013

Keywords

  • Generalized Bohr-Sommerfeld quantization condition
  • Graphene
  • High-energy eigenstates
  • Semiclassical approximation
  • Tunneling

Fingerprint

Dive into the research topics of 'Spectrum of localized states in graphene quantum dots and wires'. Together they form a unique fingerprint.

Cite this