Emergence of collective plasmon excitation in a confined one-dimensional electron gas
Journal article, 2005

We present a theoretical study of the electronic excitation in a confined one-dimensional electron gas, which is utilized to model atomic chains created in recent experiments. The length dependence of the excitation spectra is obtained from the linear response theory within the random phase approximation and time-dependent density functional theory. As the length of the chains increases, the dipole excitation spectra show a transition from electron-hole pair excitations to collective plasmon excitation. The trend of the length-dependent plasmon resonance is predicted, and the nature of the plasmon resonance is also elaborated.

ENERGIES

SURFACE

METAL

SPECTROSCOPY

NANOSHELLS

DENSITY-FUNCTIONAL THEORY

SCANNING TUNNELING MICROSCOPE

EMISSION

SYSTEMS

Author

Shiwu Gao

University of Gothenburg

Zhe Yuan

Chalmers, Applied Physics, Materials and Surface Theory

PHYSICAL REVIEW B

Vol. 72 12 art. no. 121406-

Subject Categories

Condensed Matter Physics

DOI

10.1103/PhysRevB.72.121406

More information

Created

10/7/2017