Summary
Two-dimensional (2D) layers just one atom thick can be stripped from certain materials, such as graphene. The individual layers from one or more of these materials can then be restacked to create cage-like quantum heterostructures, which possess novel quantum properties. Incorporating magnetism into such a structure at room temperature could enable direct control of electron spin polarization in the transistor geometry. We are working to combine 2D semiconductors and magnetic insulators as an early step toward creation of magnetic semiconductor heterostructures for spintronic devices. Along with proving the heterostructure concept, success in combining the two materials supports a subsequent goal, fabrication of a nanostructure consisting of a superconductor, semiconductor, and magnetic insulator. Achievement of these two goals will provide a fundamental building block for spintronics, address a vital materials challenge in the pathway to quantum computing, and potentially allow for integration of processing and storage technologies in a single device platform.
Related Content
Magnetoelectric Coupling in New Composite Multiferroic Nanostructures as High-Density Quantum Multistate Memory Elements
Summary Magnetoelectric multiferroics are materials that exhibit correlated ferroelectric and ferromagnetic properties (i.e., a magnetoelectric effect). The resulting ability of these materials to simultaneously store data in electric polarization and magnetic moment could increase data storage density and data processing speed while reducing energy consumption. This project aims to design and fabricate new composite multiferroic […]
February 1, 2023
Developing Tools for Quantum Characterization and Validation
Summary Coherence is essential for quantum computation; yet it introduces a unique sensitivity to any imperfections in hardware design, control systems, and the operating environment. Overcoming these sensitivities requires a hierarchy of strategies, ranging from optimization of the hardware architecture to software solutions including quantum error correction. Randomized Benchmarking Protocols are an important family of […]
October 3, 2017
Quantum Material Multilayer Photonic Devices and Network
Summary Realizing highly integrated quantum photonic devices on a chip can enable new opportunities for photonic quantum computation. In this project, we explore heterostructures of stacked two-dimensional (2D) materials, such transition metal dichalcogenides (TMDC) or graphene, combined with optical microcavities as a platform for such devices. 2D materials are extremely thin and flexible, and have […]
December 12, 2019
Metasurfaces for high-efficiency parametric downconversion and complex quantum state generation
Summary Entangled photon sources are crucial for quantum computing, quantum sensing, and quantum communication. Of growing importance are sources relying on spontaneous parametric downconversion (SPDC). Unfortunately, these sources of entangled photons are often constrained by momentum conservation laws. To overcome this limitation and expand the possibility of quantum state engineering, we intend to use metasurfaces […]
February 1, 2023