Spin Manipulating Heterostructures with Epitaxial Antiperovskites
Abstract
The PI proposes a comprehensive project on the scientific understanding and discovery of a new class of spin manipulating heterostructures based on the quantum properties of noncollinear spin structured antiperovskite materials. The technical approach involves the development and implementation of synthesis approaches for atomic level control of epitaxial antiperovskite heterostructures, the application of forefront experimental spin imaging and characterization approaches, and the combination with theoretical analysis of noncollinear spin structures and their manipulation. This research is enabled by recent advances in the synthesis and understanding of antiperovskite interfaces, the generation of spin polarized currents by noncollinear spin structures, and the underlying relation between these spin structures and the antiperovskite electronic structure. The long-term goal of the research is to transform antiperovskites with noncollinear spin order into the next generation of spin quantum heterostructures for spintronics. The objectives of the proposed research are a) develop synthesis approaches for atomic level control of epitaxial antiperovskite heterostructures, b) pioneer free-standing antiperovskite single crystal membranes for twisted stacking of previously impossible heterostructures, c) investigate spin manipulation in antiperovskite heterostructures, including current induced switching and readout, d) develop spin domain imaging and manipulation for noncollinear antiperovskites and e) map new directions for noncollinear spin devices with dynamic strain control. The proposed work benefits from existing collaborations on synchrotron-based structure and electronic measurements, atomic-scale imaging of structure and electronic properties, magnetic and transport measurements, and THz frequency spectroscopy. The discovery and control achieved will enable new approaches to and fundamental understanding of chiral spintronics, sensors, and topological spin and electronic configurations. This can provide lowpower electronics that are crucial to the DoD mission. Antiferromagnetic spintronics offer one of the few routes to these goals, and our program of new materials and heterointerfaces are likely to also impact other DoD needs.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 19, 2020
- Source ID
- N000142012844
Entities
People
- Chang-Beom Eom
Organizations
- Office of Naval Research
- United States Navy
- University of Wisconsin System