Dissertation/Thesis Abstract

Effects of Strain, Electron-Electron Interactions, and Spin-Orbit Coupling in Honeycomb Layered Materials
by Rosser, David M., M.S., California State University, Long Beach, 2017, 73; 10598952
Abstract (Summary)

Electronic transport and angle-resolved photoemission spectroscopy (ARPES) measurements were conducted on two different layered, honeycomb materials: graphene and sodium iridate (Na2IrO3). Graphene, the first two dimensional crystal observed in a laboratory, offers a system to explore novel quantum critical states theoretically predicted under the application of strain. Uniaxial strain was studied in suspended graphene using a microelectromechanical system (MEMS) via electronic transport. Strain was investigated as well by intercalation of C60 at the graphene-substrate (SiC) interface via ARPES. Sodium iridate is a relativistic Mott insulator proximate to the Kitaev model with unconventional electronic structure. An in-gap metallic feature was observed in ARPES measurements of Na2IrO3. Complementary evidence of a metallic conduction channel was observed in electronic transport measurements.

Indexing (document details)
Advisor: Ojeda-Aristizabal, Claudia
Commitee: Gu, Jiyeong, Peterson, Michael
School: California State University, Long Beach
Department: Physics and Astronomy
School Location: United States -- California
Source: MAI 56/05M(E), Masters Abstracts International
Subjects: Physics
Publication Number: 10598952
ISBN: 9780355097887
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