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Physics

Projects/Programs

Keyword

Organizational Unit

Twisted double bilayer graphene The moiré systems of magic angle twisted bilayer graphene (MATBG) and related heterostructures support topological bands with nonzero Chern number, which is derived from the Berry curvature of the Bloch wave functions. Berry curvature is intimately related to orbital...

Multiscale structure and dynamics in advanced technological materials

Ongoing

New technologies increasingly harness materials phenomena that operate across many length-scales: e.g., in selective gas adsorption, additive manufacturing, new alloy designs, or advanced concretes. To overcome technology barriers, it is no longer sufficient just to characterize the materials...

Nanoscale Spectroscopy for Advanced Electronics, Quantum Materials and Devices

Ongoing

Semiconductor technologies are critical to U.S. economic and national security as they are essential to modern life in communications, healthcare, energy, etc. and also underpin many emerging technologies like quantum, artificial intelligence, high power electronics and advanced wireless (6G+). The...

Nanotribology for Nanomanufacturing (Archived)

Completed

Friction and wear are major causes of mechanical failures and dissipative energy losses. These shortfalls account for a significant portion of the annual gross domestic product in the United States, amounting to approximately $800 billion in 2010. It is estimated that tens of billions of U.S...

A 3" wafer is seen concentric with the lower plasma electrode.

Precision Materials for Quantum Devices

Ongoing

MBE System Our fabrication system is composed of ultra-high vacuum (UHV) chambers that support the in-vacuum exchange of 75 mm wafers without exposure to air as seen in Figure 1. These chambers are: (1) a deposition chamber with electron gun deposition, UHV compatible sputter guns, in situ shadow...

Analog quantum simulators (AQS) Figure 1

Silicon-based Solid-State Analog Quantum Simulators

Ongoing

Why Atom-based Si AQS Analog quantum simulators are designed quantum systems with a tunable Hamiltonian to emulate complex quantum systems intractable using classical computers due to the exponential growth of the calculations with system size. Simulating strongly interacting fermions (electrons) on...

Structural Metrology of Advanced Manufacturing Processes

Ongoing

Understanding material structures in advanced manufacturing is crucial because it enables precise control over material properties, leading to improved performance, efficiency, and cost-effectiveness in production processes. However, this understanding poses many challenges, such as the...

Theory: Designing the Nanoworld

Ongoing

Developing and exploiting nanodevices for quantum and nanotechnologies requires nanoscale and atomic scale modeling of ultrasmall structures, devices, their operation, and their response to probes. Key challenges of understanding physics at the quantum/classical interface and measurement at the...

Theory of the optical properties of materials

Ongoing

Around 1998, first-principles calculation of optical constants and dielectric response began to include excitonic effects. Beginning with simple, wide-gap insulators and semiconductors, the field has progressed to studying more complex materials, clusters, and so forth. In the area of core...

Theory: Turning noisy intermediate scale quantum information processing into practical quantum computing

Ongoing

An outline of our interests in these areas is provided in the figure. Results are being applied to various platforms in quantum computing with cold atoms, ions and solid-state quantum dots, and dopant-based quantum computing and simulations. Our work on understanding noise and developing fault...

Thermoelectric Measurements

Ongoing

Thermoelectric effects enable the inter-conversion of thermal and electrical energy, with applications that include solid-state waste heat recovery in engines for automotive and industrial manufacturing; power generation for aerospace, non-terrestrial exploration, and remote sensing; and...

Topological Insulators

Ongoing

Dichalcogenide-Based Topological Insulators A family of TI materials can by synthesized by combining binary compounds of Bismuth (Bi) or Antimony (Sb) with Selenium (Se) and Tellurium (Te) to form Bi 2Se 3, Bi 2Te 3, and Sb 2Te 3 compounds. In these material compounds, the spin of the electron has a...

Exploded cross section diagram representing the simplified structure layers in a MOSFET transistor.

Transport Property Measurements for Semiconductors and Energy Materials

Ongoing

The image above is an exploded cross section diagram representing the simplified structure layers in a MOSFET transistor. Thermoreflectance (TR) laser-based measurement techniques, a key focus of this project, can measure the thermal properties of substrates, thin films, multilayer structures, and...

Understanding Confined Fluids using Theory, Simulation, and Data-Driven Methods

Ongoing

The most promising materials for capturing CO 2 (or other greenhouse gases like CH 4) from air or flue gas possess a large internal surface area per unit mass because they are composed of pores with diameters in the range of tens-to-hundreds of nanometers. Collectively referred to as mass separating...

X-ray Testbed for Breakthrough Catalyst Measurements

Ongoing

Interested in collaborating? See below What does this project do for industry? Current measurement techniques are unable to follow the reaction pathways during catalysis and are limited to observing only the end products or looking at catalysts outside of realistic reaction conditions. Our new...

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Condensed matter

Projects/Programs

Moiré Systems

Multiscale structure and dynamics in advanced technological materials

Nanoscale Spectroscopy for Advanced Electronics, Quantum Materials and Devices

Nanotribology for Nanomanufacturing (Archived)

Precision Materials for Quantum Devices

Silicon-based Solid-State Analog Quantum Simulators

Structural Metrology of Advanced Manufacturing Processes

Theory: Designing the Nanoworld

Theory of the optical properties of materials

Theory: Turning noisy intermediate scale quantum information processing into practical quantum computing

Thermoelectric Measurements

Topological Insulators

Transport Property Measurements for Semiconductors and Energy Materials

Understanding Confined Fluids using Theory, Simulation, and Data-Driven Methods

X-ray Testbed for Breakthrough Catalyst Measurements

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