A perspective on the application of spatially resolved ARPES for 2D materials

Mattia Cattelan*, Neil A. Fox

*Corresponding author for this work

Research output: Contribution to journalReview article (Academic Journal)peer-review

11 Citations (Scopus)
328 Downloads (Pure)

Abstract

In this paper, a perspective on the application of Spatially-and Angle-Resolved PhotoEmission Spectroscopy (ARPES) for the study of two-dimensional (2D) materials is presented. ARPES allows the direct measurement of the electronic band structure of materials generating extremely useful insights into their electronic properties. The possibility to apply this technique to 2D materials is of paramount importance because these ultrathin layers are considered fundamental for future electronic, photonic and spintronic devices. In this review an overview of the technical aspects of spatially localized ARPES is given along with a description of the most advanced setups for laboratory and synchrotron-based equipment. This technique is sensitive to the lateral dimensions of the sample. Therefore, a discussion on the preparation methods of 2D material is presented. Some of the most interesting results obtained by ARPES are reported in three sections including: graphene, transition metal dichalcogenides (TMDCs) and 2D heterostructures. Graphene has played a key role in ARPES studies because it inspired the use of this technique with other 2D materials. TMDCs are presented for their peculiar transport, optical and spin properties. Finally, the section featuring heterostructures highlights a future direction for research into 2D material structures.

Original languageEnglish
Article number284
Number of pages26
JournalNanomaterials
Volume8
Issue number5
Early online date27 Apr 2018
DOIs
Publication statusPublished - May 2018

Keywords

  • 2D heterostructures
  • 2D materials
  • Band structure
  • Graphene
  • Spatially localized ARPES
  • Transition metal dichalcogenides

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