A5011234970- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Spacecraft and Cryogenic Technologies
- Magnetic properties of thin films
- Physics of Superconductivity and Magnetism
- Particle Detector Development and Performance
- Magnetic confinement fusion research
- Topological Materials and Phenomena
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced Memory and Neural Computing
- Ferroelectric and Negative Capacitance Devices
- Advanced X-ray Imaging Techniques
- Plant Gene Expression Analysis
- Photocathodes and Microchannel Plates
- ZnO doping and properties
- Semiconductor materials and devices
- Combustion and Detonation Processes
- Quantum, superfluid, helium dynamics
- Magnetic and transport properties of perovskites and related materials
- Advanced Thermodynamic Systems and Engines
- Superconductivity in MgB2 and Alloys
- Plant Molecular Biology Research
- Plant biochemistry and biosynthesis
- Muon and positron interactions and applications
University of Minnesota System
2025
University of Minnesota
2017-2024
SLAC National Accelerator Laboratory
1992-2023
Stanford University
2023
Linac Coherent Light Source
2022
Menlo School
2017-2022
Spectrum Health
2022
Michigan State University
2012-2022
The University of Vermont Health Network Home Health & Hospice
2022
Walter Reed National Military Medical Center
2022
ABSTRACT BACKGROUND This study examined the association between physical fitness and academic achievement determined influence of socioeconomic status ( SES ) on in school‐aged youth. METHODS Overall, 1,701 third‐, sixth‐, ninth‐grade students from 5 school districts participated assessments. Fitness was assessed using FITNESSGRAM (aerobic fitness, muscular strength, endurance, flexibility, body composition). Results were used to determine individual scores. Academic measured by standardized...
We investigated spin-to-charge conversion in sputtered Bi43Se57/Co20Fe60B20 heterostructures with in-plane magnetization at room temperature. High voltage signals have been observed The transmission electron microscope images show that the bismuth selenide thin films are nanogranular structure. spin-pumping decreases an increase size of grains. inverse Edelstein effect length (λIEE) is estimated to be as large 0.32 nm. λIEE due spin-momentum locking and further enhanced by quantum...
Contrary to topological insulators, semimetals possess a nontrivial chiral anomaly that leads negative magnetoresistance and are hosts both conductive bulk states surface with intriguing transport properties for spintronics. Here, we fabricate highly-ordered metallic Pt3Sn Pt3SnxFe1-x thin films via sputtering technology. Systematic angular dependence (both in-plane out-of-plane) study of presents surprisingly robust quadratic linear longitudinal features Pt3SnxFe1-x, respectively. We...
Voltage-Controlled Magnetic Anisotropy (VCMA) effect is a promising strategy for reducing energy consumption in Random-Access Memory (MRAM) embedded applications. However, the low efficiency of VCMA poses challenges CoFeB/MgO-based MRAM. Although significant coefficients have been predicted based on electron depletion (ED) orbital population model Fe/MgO interfaces, experimental validation remains limited. Here, we demonstrate an effective and industry-compatible approach to achieving...
The maize P gene is a transcriptional regulator of genes encoding enzymes for flavonoid biosynthesis in the pathway leading to production red phlobaphene pigment. Multiple alleles confer distinct patterns pigmentation specific floral organs, such as kernel pericarp and cob tissues. To determine basis allele-specific pigmentation, we have characterized products transcript accumulation P-wr allele, which specifies colorless pericarps RNA transcripts are present well colored tissues; however,...
We present the Spin Hall Effect (SHE) Computational Random Access Memory (CRAM) for in-memory computation, incorporating considerations at device, gate, and functional levels. For two specific applications (2-D convolution neuromorphic digit recognition), we show that SHE-CRAM is 3x faster has over 4x lower energy than a prior STT-based CRAM implementation, 2000x least 130x more energy-efficient state-of-the-art near-memory processing.
We studied the spin-to-charge and charge-to-spin conversion at room temperature in sputtered WTe2−x (x = 0.8) (t)/Co20Fe60B20(6 nm) heterostructures. Spin pumping measurements were used to characterize efficiency, spin efficiency was calculated be larger than ∼0.035. Second harmonic Hall carried out estimate ratio. found that system exhibits a large field-like torque (spin ∼0.1) small damping-like ∼0.001) compared those reported for heavy metals. High-resolution transmission electron...
We demonstrate a voltage-controlled exchange bias effect in CoFeB/MgO/CoFeB magnetic tunnel junctions that is related to the interfacial Fe(Co)Ox formed between CoFeB electrodes and MgO barrier. The unique combination of antiferromagnetism, giant tunneling magnetoresistance, sharp switching perpendicularly-magnetized allows sensitive detection bias. It found field can be isothermally controlled by fields at low temperatures. More importantly, also effectively manipulated electric applied...
Abstract C 3 is an opportunity to realize e + - collider for the study of Higgs boson at √ s = 250 GeV, with a well defined upgrade path 550 GeV while staying on same short facility footprint [2,3]. based fundamentally new approach normal conducting linear accelerators that achieves both high gradient and efficiency relatively low cost. Given advanced state designs, key system requires technical maturation main linac. This paper presents staged towards demonstrate technology Direct (source...
Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text R. D. Deslattes, T. J. Peterson, and H. Tomboulian, "Penning Discharge as a Source in the Extreme Ultraviolet*," Opt. Soc. Am. 53, 302-304 (1963) Export BibTex Endnote (RIS) HTML Plain alert Save article
C$^3$ is an opportunity to realize e$^+$e$^-$ collider for the study of Higgs boson at $\sqrt{s} = 250$ GeV, with a well defined upgrade path 550 GeV while staying on same short facility footprint. based fundamentally new approach normal conducting linear accelerators that achieves both high gradient and efficiency relatively low cost. Given advanced state designs, key system requires technical maturation main linac. This white paper presents staged towards demonstrate technology Direct...
When a superconducting radiofrequency cavity is cooled through its critical temperature, ambient magnetic flux can become ``frozen in'' to the superconductor, resulting in degradation of quality factor. This especially problematic applications where factor cost driver, such as cw linac for LCLS-II. Previously, it had been unknown how prevent from being trapped during cooldown bulk niobium cavities, but recent R studies showed near-full expulsion be achieved high temperature heat treatment...
The paper deals with the relative intensity measurements of soft x-ray continuous radiation from Mg, Al, Mn, Cu, Ge, and Ag targets bombarded by low-energy electrons. investigations lie in heretofore unexamined region 80 to 180 A. Photometric were carried out use a previously calibrated grazing incidence spectrograph. In all cases target layers prepared deposition high vacuum. Accelerating potentials ranged 600 3000 v. addition study spectral shape bremsstrahlung, attempts made investigate...
Recent advancement in the switching of perpendicular magnetic tunnel junctions with an electric field has been a milestone for realizing ultra-low energy memory and computing devices. To integrate current spin-transfer torque-magnetic junction spin–orbit devices, typical linear fJ/V m range voltage controlled anisotropy (VCMA) needs to be significantly enhanced approaches that include new materials or stack engineering. A possible bidirectional 1.1 pJ/V VCMA effect predicted by using heavily...
Future high energy accelerators such as the Large Hadron Collider require accelerator magnets with highest possible fields. For NbTi conductor magnets, this means operating at superfluid helium temperatures in range of 1.8-1.9 K. As part Fermilab's superconducting magnet R&D program, we have built a facility to test vertical dewar liquid helium. The is designed for up 4 m length and 620 mm diameter, temperature 1.8 K 4.4 1 atmosphere power system consists 10 kA 8.8 supplies parallel, bus...
This second-generation partial-response maximum-likelihood (PRML) read channel device implements an extended class 4 (EPR4) architecture by adding EPR4 post-processor to the PR4 previously described. Only a single reference resistor and power-supply decoupling are required form complete read, write, servo demodulation solution. Additions include adaptive MR head asymmetry (MRA) cancellation thermal asperity (TA) detection correction. The demodulator supports 20 MHz bursts includes 9 b analog...
The Fermilab Mu2e experiment seeks to measure the rare process of direct muon electron conversion in field a nucleus. Key design is system three superconducting solenoids; production solenoid (PS) which 1.8 m aperture axially graded with peak 5 T used focus secondary pions and muons from target located aperture; an “S shaped” transport (TS) selects transports subsequent towards stopping target; detector (DS) at upstream end transported target, spectrometer downstream accurately momentum...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation A. Devred, T. Bush, R. Coombes, J. DiMarco, C. Goodzeit, Kuzminski, M. Puglisi, P. Radusewicz, Sanger, Schermer, G. Spigo, Thompkins, Turner, Z. Wolf, Y. Yu, H. Zheng, Ogitsu, Anerella, Cottingham, Ganetis, Garber, Ghosh, Greene, Gupta, Herrera, S. Kahn, E. Kelly, Meade, Morgan, Muratore, Prodell, Rehak,...
AbstractThis paper examines the potential use of Life Purpose Questionnaire (LPQ), which is an uncomplicated paper-and-pencil instrument designed to measure individual's sense life meaning. Sense meaning important focus Crumbaugh's logotherapy for alcoholics. Correlations between scores LPQ and more complicated Purpose-in-Life Test are significant three separate alcoholic groups. Based on these results, it concluded that can be used with alcoholics in order obtain a quick readily understandable
The Fermilab Mu2e experiment seeks to measure the rare process of direct muon electron conversion in field a nucleus. magnet system for this is made three warm-bore solenoids: Production Solenoid (PS), Transport (TS), and Detector (DS). TS an “S-shaped” solenoid set between other bigger solenoids. has aperture 0.5 m 2.5 2.0 T. PS DS have, respectively 1.5 1.9 m, peak 4.6 T 2 In order meet specifications, starts inside ends DS. strong coupling with adjacent solenoids poses several challenges...
High resolution Fast Fourier Transform (FFT) is important for various applications while increased memory access and parallelism requirement limits the traditional hardware. In this work, we explore acceleration opportunities high FFTs in spintronic computational RAM (CRAM) which supports true in-memory processing semantics. We experiment with Spin-Torque-Transfer (STT) Spin-Hall-Effect (SHE) based CRAMs implementing CRAFFT, a FFT accelerator memory. For one million point fixed-point FFT,...
Future soft x-ray (10 to 50 Å) spectroscopy missions require higher effective areas and resolutions perform critical science that cannot be done by instruments on current missions. An grating spectrometer employing off-plane reflection gratings would capable of meeting these performance criteria. Off-plane with blazed groove facets operating in the Littrow mounting can used achieve excellent throughput into orders achieving high resolutions. We have fabricated two profiles via a technique...