Scanning Tunneling Microscopy Chemical Signature of Point Defects on the MoS2(0001) Surface

Javier D. Fuhr, Andrés Saúl, Jorge O. Sofo

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

The electronic structure of the clean MoS2(0001) surface and its modification with several point defects was studied. The constant current scanning tunneling microscopy (STM) images and spectroscopic I vs V curves using the Tersoff-Hamann approximation were also calculated. It was found that when a S vacancy was present on the surface, gap state appears with weight mostly on the Mo atoms of the second layer and on the S atoms surrounding the vacancy. It was observed that the substitutional atoms of complete d band (Pd and Au) do not present magnetic polarization and slightly modify the density of states (DOS) near the Fermi energy.

Original languageEnglish (US)
Article number026802
Pages (from-to)268021-268024
Number of pages4
JournalPhysical Review Letters
Volume92
Issue number2
StatePublished - Jan 16 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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