Optical spectroscopy study of correlated electron physics in ABC-stacked trilayer graphene

In recent years, people use 2D material as a building block to fabricate all kinds of multilayer stack devices, some of which host strongly correlated physics such as twist bilayer graphene and ABC-stack trilayer graphene. Mott insulator and superconductivity are found in these systems, which provide a cleaner and more controllable platform to study the strongly correlated physics than the traditional cuprate system. As a complementary method to trans- port measurement, which focuses on the low-frequency response, the optical spectrum is an important way to detect the frequency-dependent response and extract the underlying physics. In this project, we measured the optical spectrum on an ABC-stack trilayer graphene sample with the photocurrent method to understand the electron behavior in these delicate structures.

Name thesis:degree_name

Master

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2021

Author dc:creator

• Zhang, Qihang(Electrical and computer scienctist)Massachusetts Institute of Technology.

Advisor dc:contributor.advisor

• Long Ju.

• Electrical Engineering and Computer Science.

Statement dc:rights

• MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

https://hdl.handle.net/1721.1/130796

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/130796