Enhanced many-body effects in one-dimensional linear atomic chains

Ruixiang Fei, Guangfu Luo, Yangyang Wang, Zhengxiang Gao, Shigeru Nagase, Dapeng Yu, Jing Lu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We present the quasiparticle energy and optical absorption spectrum results of 1D linear H, BN, C, and Au chains, which are the lower size limit of a periodic material, by using ab initio many-body approaches. Unprecedentedly large quasiparticle corrections and excitonic effects are revealed in these extreme systems compared with quasi-1D, 2D, and 3D periodic systems. The binding energy of the bound exciton is up to 3.55eV in the semiconducting BN chain and 0.5eV in the metallic C chain, the latter of which is the largest in a metallic system.

Original languageEnglish
Pages (from-to)1636-1643
Number of pages8
JournalPhysica Status Solidi (B): Basic Research
Volume250
Issue number8
DOIs
Publication statusPublished - Aug 2013
Externally publishedYes

Keywords

  • Excitons
  • Linear atomic chains
  • Many-body effects
  • Optical absorption
  • Quasiparticles

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