Emergent Electromagnetic Phenomena in the Q Valleys of Transition Metal Dichalcogenides Electronics Division: Solid State and Electromagnetics
Abstract
The newly discovered atomically thin transition metal dichalcogenides offer a timely, fertile platform for exploring novel electromagnetic phenomena due to the interlay among charge, spin, valley, and layer degrees of freedom. Recent quantum transport measurements have provided compelling evidence for the presence of a three-fold Q-valley degeneracy inn-type few-layer transition metal dichalcogenides. In quantum dot geometry or in quantum Hall regime, the three-fold valley degeneracy emerges as a flavor SU(3) symmetry, which is a foundation of the quark model (an essential component in the Standard Model) in particle physics. This unique property lends an excellent opportunity to realize the solid-state version of flavor SU(3) symmetry that has been rare in electron systems to date. In this project, the PI proposes to establish the aforementioned platform, in which various analytical and computational tools will be utilized to study the interplay between the emergent SU(3) symmetry and electromagnetic interactions for the Q valley electrons. These theoretical efforts on the artificial quark transistor and spontaneous flavor symmetry breaking will guide the ongoing experiments at several leading experimental groups. The proposed activities will advance the ARO Electronics Division s goal of developing forefront concepts in electronics and exploring exotic electromagnetic phenomena beyond the scope of Maxwell s equations, which will in the long-term have revolutionary consequences for fundamental science and Anny capabilities.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 14, 2019
- Source ID
- W911NF1810416
Entities
People
- Fan Zhang
Organizations
- Army Contracting Command
- United States Army
- University of Texas at Dallas