Strong slip-induced anomalous enhancement and red-shifts in wide-range optical absorption of graphite under uniaxial pressure

Ji Chang Ren, Rui Qin Zhang*, Zejun Ding, M. A. VAN HOVE

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Natural graphite shows little optical response. Based on first-principles calculations, we demonstrate, for the first time, that an in-plane pressure-induced slip between atomic layers causes a strong anomalous enhancement and large red-shifts in the infrared and far infrared optical absorption by graphite. Specifically, a slip along the armchair direction induces an absorption feature that redshifts from ∼3 eV to ∼0.15 eV, while its intensity increases by an order of magnitude, due to an electron density delocalization effect with slip. Our results provide a way to detect and measure the magnitude of the in-plane slip of graphite under compression and also open up potential applications in electronics and photonics. This journal is

Original languageEnglish
Pages (from-to)8943-8948
Number of pages6
JournalNanoscale
Volume6
Issue number15
DOIs
Publication statusPublished - 7 Aug 2014

Scopus Subject Areas

  • Materials Science(all)

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