Effects of Quantum Tunneling in Metal Nano-gap on Surface-Enhanced Raman Scattering
Mesoscale and Nanoscale Physics
2015-05-13 v2
Abstract
The quantum tunneling effects between two metallic plates are studied using the time dependent density functional theory. Results show that the tunneling is mainly dependent on the separation and the initial local field of the interstice between plates. The smaller separation and larger local field, the easier the electrons tunnels through the interstice. Our numerical calculation shows that when the separation is smaller than 0.6 nm the quantum tunneling dramatically reduce the enhancing ability of interstice between nanoparticles.
Keywords
Cite
@article{arxiv.0901.0607,
title = {Effects of Quantum Tunneling in Metal Nano-gap on Surface-Enhanced Raman Scattering},
author = {Li Mao and Zhipeng Li and Biao Wu and Hongxing Xu},
journal= {arXiv preprint arXiv:0901.0607},
year = {2015}
}