期刊
PHYSICAL REVIEW B
卷 61, 期 7, 页码 4429-4432出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.61.4429
关键词
-
Band theory predicts a (epsilon-Delta)(-1/2) van Hove singularity in the tunneling density of states at the minimum energy (Delta) of an unoccupied subband in a one-dimensional quantum wire. With interactions, an orthogonality catastrophe analogous to the x-ray edge effect for core levels in a metal strongly reduces this singularity to the form (epsilon - Delta)(beta-112), with beta approximate to 0.3 for typical carbon nanotubes. Despite the anomalous tunneling characteristic, good quasiparticles corresponding to the unoccupied subband states do exist.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据