Research Fellow (Condensed Matter Physics-Experimental Studies of Epitaxial Moiré Superstructures)

Research Fellow (Condensed Matter Physics-Experimental Studies of Epitaxial Moiré Superstructures)

Company: National University of Singapore

Job Description

The successful candidate will work with Associate Professor Wang Xuesen & Professor Wee Thye Shen, Andrew on experimental studies of epitaxial moiré superstructures under a project on the Investigation of Practical Epitaxial Moiré Superstructures with Novel Electronic Properties.

The main responsibilities of the position include:

1. To carry out epitaxial growth of the overlayer that forms a moiré superlattice on a substrate in ultrahigh vacuum (UHV) chamber.
2. To analyze the atomic and electronic structures of epitaxial moiré superlattices using scanning tunneling microscopy and spectroscopy (STM/STS).
3. To analyze experimental data, comparing with computational results and draft manuscripts for publication.
4. To provide guidance and assistance to the PhD and Master students doing similar experimental studies in this project.

Qualifications

Qualifications / Discipline: PhD degree in Physics, Chemistry or Materials Science.

Skills: Have a comprehensive understanding of the novel physical properties of material structures based on various 2D materials; capable of using UHV sample preparation and film growth facilities to fabricate the epitaxial moiré superstructures, especially those made of Group-V (Sb, Bi, P) and Group IV-VI compounds (e.g., GeS, GeSe, SnS, and SnSe); capable of in situ STM/STS analysis of the atomic and electronic structures of epitaxial moiré superstructures; skills of performing LEED, XPS and ARPES analysis are also desirable; strong skill of writing and oral communication in English.

Experience: Has at least 4 years of: 1) Using Omicron UHV LT-STM systems for surface, nanostructures and thin film investigations; 2) surface cleaning, atomic layer and film deposition, especially involving materials of Group-V (Sb, Bi, P) and Group IV-VI compounds (e.g., GeS, GeSe, SnS, and SnSe); 3) UHV and low-temperature STM/STS analysis of the atomic and electronic structures of surfaces, thin films and nanostructures. Experience of LEED, XPS and ARPES analysis is also desirable.