The Role of the Moire Pattern on the Electronic Band Structure of Mono- to Few Layer MoS2

Bulletin of the American Physical Society

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APS March Meeting 2017

Volume 62, Number 4

Monday–Friday, March 13–17, 2017; New Orleans, Louisiana

Session S33: Structural and Electronic Properties

11:15 AM–2:15 PM, Thursday, March 16, 2017
Room: 296

Sponsoring Unit: DMP
Chair: Rui He, University of Northern Iowa

Abstract ID: BAPS.2017.MAR.S33.1

Abstract: S33.00001 : The Role of the Moire Pattern on the Electronic Band Structure of Mono- to Few Layer MoS2*

11:15 AM–11:27 AM

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Authors:

D. Trainer
(Physics Department, Temple University, Philadelphia PA 19122, USA)

A. Putilov
(Physics Department, Temple University, Philadelphia PA 19122, USA)

T. Saari
(Department of Physics, Tampere University of Technology, Tampere, Finland)

T.-R. Chang
(Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan)

H.-T. Jeng
(Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan)

H. Lin
(Department of Physics, National University of Singapore, Singapore 117546)

B. Wang
(Physics Department, Northeastern University, Boston MA 02115, USA)

C. Lane
(Physics Department, Northeastern University, Boston MA 02115, USA)

J. Nieminen
(Physics Department, Northeastern University, Boston MA 02115, USA)

A. Bansil
(Physics Department, Northeastern University, Boston MA 02115, USA)

X. X. Xi
(Physics Department, Temple University, Philadelphia PA 19122, USA)

M. Iavarone
(Physics Department, Temple University, Philadelphia PA 19122, USA)

Using low temperature high resolution scanning tunneling microscopy and spectroscopy (STM/STS) we have investigated MoS2 grown by chemical vapor deposition (CVD) on a substrate of highly oriented pyrolytic graphite (HOPG). Atomic resolution images reveal clear Moir\'{e} patterns, which in general arise due to a lattice mismatch or rotational misalignment between weakly interacting MoS2 layers and between the first MoS2 layer and the substrate. The quasi-particle band-gap was analyzed as a function of the lattice rotation. Changes in the band structure were supported by density functional theory (DFT) calculations.

*This work was supported as a part of the Center for the Computational Design of Functional Layered Materials, an Energy Research Frontier Center funded by the U.S. DOE, BES under Award DE-SC0012575

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2017.MAR.S33.1

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Bulletin of the American Physical Society

APS March Meeting 2017

Volume 62, Number 4

Monday–Friday, March 13–17, 2017; New Orleans, Louisiana

Session S33: Structural and Electronic Properties

Abstract: S33.00001 : The Role of the Moire Pattern on the Electronic Band Structure of Mono- to Few Layer MoS2*

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