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

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

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

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

Physics

Research output: Contribution to journal › Article › peer-review

84 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 language	English (US)
Article number	026802
Pages (from-to)	268021-268024
Number of pages	4
Journal	Physical review letters
Volume	92
Issue number	2
State	Published - Jan 16 2004

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Cite this

@article{94c5791e0aaa4d809e8c1451853e1d79,

title = "Scanning Tunneling Microscopy Chemical Signature of Point Defects on the MoS2(0001) Surface",

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.",

author = "Fuhr, \{Javier D.\} and Andr{\'e}s Sa{\'u}l and Sofo, \{Jorge O.\}",

year = "2004",

month = jan,

day = "16",

language = "English (US)",

volume = "92",

pages = "268021--268024",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "2",

}

TY - JOUR

T1 - Scanning Tunneling Microscopy Chemical Signature of Point Defects on the MoS2(0001) Surface

AU - Fuhr, Javier D.

AU - Saúl, Andrés

AU - Sofo, Jorge O.

PY - 2004/1/16

Y1 - 2004/1/16

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/17444445668

UR - https://www.scopus.com/pages/publications/17444445668#tab=citedBy

M3 - Article

AN - SCOPUS:17444445668

SN - 0031-9007

VL - 92

SP - 268021

EP - 268024

JO - Physical review letters

JF - Physical review letters

IS - 2

M1 - 026802

ER -

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

Abstract

All Science Journal Classification (ASJC) codes

Other files and links

Fingerprint

Cite this