{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/130796"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/130796","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Optical spectroscopy study of correlated electron physics in ABC-stacked trilayer graphene","abstract":"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.","abstract_html":"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.","abstract_has_math":false,"creators":["Zhang, Qihang(Electrical and computer scienctist)Massachusetts Institute of Technology."],"institution":"Massachusetts Institute of Technology","degree_name":"Master","degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science","school":null,"contributors":[],"advisors":["Long Ju."],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021","date_published":"2021","updated_at":"2026-07-22T22:21:03Z","subjects":["Electrical Engineering and Computer Science."],"languages":["eng"],"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."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1721.1/130796","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Long Ju."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. 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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."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["S.M."]},{"key":"dc:title","label":"Title","values":["Optical spectroscopy study of correlated electron physics in ABC-stacked trilayer graphene"]}]}],"canonical_facts":{"dc:contributor.advisor":["Long Ju."],"dc:contributor.department":["Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science","EECS"],"dc:contributor.other":["Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science."],"dc:creator":["Zhang, Qihang(Electrical and computer scienctist)Massachusetts Institute of Technology."],"dc:date.accessioned":["2021-05-24T20:24:08Z"],"dc:date.available":["2021-05-24T20:24:08Z"],"dc:date.issued":["2021"],"dc:description":["Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, February, 2021","Cataloged from the official PDF version of thesis.","Includes bibliographical references (pages 39-41)."],"dc:description.abstract":["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."],"dc:description.degree":["S.M."],"dc:identifier.uri":["https://hdl.handle.net/1721.1/130796"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"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."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Electrical Engineering and Computer Science."],"dc:title":["Optical spectroscopy study of correlated electron physics in ABC-stacked trilayer graphene"],"dc:type":["Thesis"],"thesis:degree_name":["Master"]},"updated_at":"2026-07-22T22:21:03Z"}