(YIP) CONTROLLING TWO-DIMENSIONAL SPIN TEXTURES IN VAN DER WAALS SUPERLATTICES
Abstract
Understanding how to manipulate electronic states in materials at the fundamental quantum mechanical level is a prerequisite for the innovation of new paradigms of communication, information processing and computing technologies with enhanced operation characteristics. At the heart of key critical electronic phenomena are many-body interactions in the solid-state, particularly collective electron spin behavior that manifests as long-range magnetic order. Inventing materials that allow the isolation, study, and control of magnetism in the two-dimensional (2D) limit will be key to our understanding of underlying principles pertaining to long-range magnetic order at low dimensions (violations of the Mermin-Wagner theorem), the manipulation of localized spins, and the study of topological spin textures like skyrmions and merons. These new materials and the quantum states they bear could form the basis of compact permanent magnets that do not rely on rare-earth elements; new schemes for low-power, more secure, portable magnetic devices, including electric motors, sensors and data storage systems; and innovative spin transport (spintronic) devices—a new generation of electronic systems with higher speeds, minimal energy consumption and lower volatility. In this research program, we propose a new approach to manipulating the quantum magnetoelectronic states of materials. We will design atomically precise van der Waals (vdW) interfaces possessing unique chemistry towards the intercalation of transition metal ions bearing unpaired spins. The meticulous control exerted over interface composition and structure will permit precise (electro)chemical and electrostatic manipulation of magnetic states in the target 2D materials, opening avenues to explore a new synthetic paradigm and magnetoelectric phase space of 2D layers.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2021
- Source ID
- FA95502010007
Entities
People
- Daniel Bediako
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of California Regents