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Nanotechnology

Nanomagnetics

Projects/Programs

Displaying 1 - 13 of 13

Computational Micromagnetics

Ongoing
Micromagnetics technologies constitute the foundation of computer storage devices. Exponential growth in the size of portable magnetic memories accompanied by decrease cost-per-byte is evidence of success in this technology. To sustain this growth engineers and scientists are increasingly using
Nitrogen-vacancy center in a diamond crystal

Diamond NV Center Magnetometry

Ongoing
A flaw in a crystal might not be an intuitive choice for a measurement tool, but the nitrogen-vacancy (NV-) defect in diamond is something special. Using light, we prepare the NV- center’s the quantum spin state, it interacts with magnetic fields, and we read out the resulting spin state through
EUV graphs

Dynamic EUV Imaging and Spectroscopy for Microelectronics

Ongoing
Collaborations with industry leaders have led us to develop new measurement techniques to improve our understanding thermal transport, spin transport, and nanoscopic (and interfacial) material properties in active device structures. Such capability requires the ability to measure these properties at
circuit

Emerging Hardware for Artificial Intelligence

Ongoing
Here is a brief description of our work with links to recent papers from our investigations, broadly classified as experimental and modeling. A brief overview of Josephson junction-based bio-inspired computing can be found in our review article. Experimental We have facilities to develop our devices

Magnetic Imaging

Completed
Advanced magnetic devices and storage media will rely on ultra thin ferromagnetic films; since such films are quasi two-dimensional magnets, they can have strong perpendicular magnetic anisotropy (PMA). Optimization of future materials, including improved yields, requires an ability to measure film

Magnetic Random Access Memory

Ongoing
Focus areas include (1) the fundamental understanding of the interactions between spin and magnetic materials and materials with large spin-orbit scattering; (2) the nonlinear dynamics of both individual and interacting nanoscale magnetic systems; and (3) the role of thermal noise in nanomagnetic
(a) Schematic of a near-field scanning microwave microscope (NSMM). (b) NSMM images of a perovskite PV sample, (c) NSMM MoS2 back-gate device, (d) Spatial imaging of excited spin wave modes.

Nanoelectromagnetics

Ongoing
The primary goal of this program is metrology that enables advanced nanoscale device (including electronics, spintronics, and life science) development. Based on current trends in electronics, we are focusing on metrology for two classes of devices: (1) nanoscale devices utilizing and exploring new
micro-focus Brillouin Light scattering spectrometer

Optical and Microwave Spectroscopy of Microelectronic Systems

Ongoing
Collaborations with industry leaders have led to new understanding of magnetic damping in advanced materials and replication of our magnetic metrology tools. We investigate fundamental aspects of spin transfer in materials and structures that offer improved performance in future devices such as
Fig. 1. Die containing 285 superparamagnetic tunnel junctions.

Spintronics for Neuromorphic Computing

Ongoing
Magnetic tunnel junctions (see Fig. 1) consist of two thin films of ferromagnetic material separated by a few atomic layers of an insulating material. The insulator is so thin that electrons can tunnel quantum mechanically through it. The rate at which the electrons tunnel is affected by the
A current (white arrow) flowing through a tantalum film generates a current of spins (dark blue arrows) that impinges on the ferromagnetic cobalt iron boron layer and causes the magnetization (gold arrow) to charge directions (light blue arrow).

Theory of Spin-Orbit Torque

Ongoing
A ferromagnetic material such as iron acquires its magnetization because the magnetic orientation of its constituent atoms all line up in the same way. Because individual electrons also have an intrinsic magnetic moment – which is often referred to as the electron “spin” - they can interact with
landau-v

µMAG: Micromagnetic Modeling Activity Group

Ongoing
µMAG advances the state of the art in micromagnetic modeling by establishing and maintaining communications among interested researchers, by defining a collection of standard micromagnetic problems, and by leading the development of a public reference implementation of micromagnetic software.