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NIST Authors in Bold

Displaying 6351 - 6375 of 74292

Blind Calibration of Phase Drift in Millimeter-Wave Channel Sounders

June 11, 2020
Author(s)
Jack Chuang, Jelena Senic, Chunmei Liu, Camillo Gentile, Sung Yun Jun, Derek Caudill
Millimeter-wave channel sounders are much more sensitive to phase drift than their microwave counterparts by virtue of shorter wavelength. This matters when coherently phasing (electronic or mechanical) antenna scans collected over seconds, minutes, or

Ferromagnetism in van der Waals Compound MnSb 1.8 Bi 0.2 Te 4

June 11, 2020
Author(s)
Yangyang Chen, Ya-Wen Chuang, Seng Huat Lee, Yanglin Zhu, Kevin Honz, Yingdong Guan, Yu Wang, Ke Wang, Zhiqiang Mao, Jun Zhu, Colin A. Heikes, Patrick Quarterman, P. Zajdel, Julie Borchers, William D. Ratcliff
The intersection of topology and magnetism represent a new playground to discover novel quantum phenomena and new device concepts. In this work, we show that a van der Waals compound MnSb 1.8 Bi 0.2Te 4 exhibits a ferromagnetic ground state with a Curie

Topological Singularity Induced Chiral Kohn Anomaly in a Weyl Semimetal

June 11, 2020
Author(s)
Thanh Nguyen, Fei Han, Nina Andrejevic, Ricardo Pablo-Pedro, Anju Apte, Yoichiro Tsurimaki, Zhiwei Ding, Kunyan Zhang, Ahmet Alatas, Ercan E. Alp, Songxue Chi, Jaime Fernandez-Baca, Masaaki Matsuda, David Alan Tennant, Yang Zhao, Zhijun Xu, Jeffrey W. Lynn, Shengxi Huang, Mingda Li
The electron-phonon interaction (EPI) is instrumental in a wide variety of phenomena in solid state physics, such as electrical resistivity in metals [1], carrier mobility, optical transition and polaron effects in semiconductors [2,3], lifetime of hot

EXPPO: EXecution Performance Profiling and Optimization for CPS Co-simulation-as-a-Service

June 10, 2020
Author(s)
Yogesh Barve, Himanshu Neema, Zhuangwei Kang, Hongyang Sun, Aniruddha Gokhale, Thomas Roth
A co-simulation may comprise several heterogeneous federates with diverse spatial and temporal execution characteristics. In an iterative time-stepped simulation, a federation exhibits the Bulk Synchronous Parallel (BSP) computation paradigm in which all

Rainbow Band Separation is Better than we Thought

June 10, 2020
Author(s)
Daniel Smith-Tone, Ray Perlner
Currently the National Institute of Standards and Technology (NIST) is engaged in a post- quantum standardization effort, analyzing numerous candidate schemes to provide security against the advancing threat of quantum computers. Among the candidates in

Status of IEEE RAS Standardization Efforts

June 10, 2020
Author(s)
Craig I. Schlenoff
The IEEE Robotics and Automation Society's (RAS) standards study and working groups are strong and growing stronger. As of the time of this publication, we have two published standards, six working groups actively developing future standards, and one study

Global City Teams Challenge Smart Agriculture and Rural SuperCluster Workshop Report 2020

June 9, 2020
Author(s)
Sokwoo Rhee, Dennis Buckmaster, Jean Rice, Josh Seidemann, Mo Shakouri, Robert Tse, Hongwei Zhang
The National Institute of Standards and Technology (NIST) established the Global City Teams Challenge (GCTC) for communities across the world to use as collaboration platform in their pursuit of deploying Internet of Things (IoT) and Cyber-Physical Systems

Materials loss measurements using superconducting microwave resonators

June 9, 2020
Author(s)
Corey Rae H. McRae, Haozhi Wang, Jiansong Gao, Michael R. Vissers, Teresa Brecht, A Dunsworth, David P. Pappas, J. Mutus
The performance of superconducting circuits for quantum computing is limited by materials losses. In particular, coherence times are typically bounded by two-level system (TLS) losses at single photon powers and millikelvin temperatures. The identification

Realization of a stroboscopic optical lattice for cold atoms with subwavelength spacing

June 9, 2020
Author(s)
TC Tsui, Yang Wang, Sarthak Subhankar, James V. Porto, Steve Rolston
Optical lattices are typically created via the ac-Stark shift, which are limited by diffraction to periodicities ≥ λ/2, where λ is the wavelength of light used to create them. Lattices with smaller periodicities may be useful for many-body physics with

Response Bias of Electrical Cable Coatings at Fire Conditions (REBECCA-FIRE)

June 9, 2020
Author(s)
Kevin B. McGrattan, Edward J. Hnetkovsky, Scott D. Bareham, Michael J. Selepak, Morgan Bruns
This report contains results of a multi-year experimental program called REBECCA-FIRE (Response Bias of Electrical Cable Coatings at Fire Conditions). Volume 2 of the three volume report focuses on the burning behavior of electrical cables that are

Spectroscopic analysis of N-intrashell transitions in Rb-like to Ni-like Yb ions

June 9, 2020
Author(s)
Dipti Goyal, R. Silwal, Joan M. Dreiling, Samuel C. Sanders, Endre A. Takacs, Yuri Ralchenko
Extreme ultraviolet spectra of highly-charged ytterbium ions produced in an electron beam ion trap at National Institute of Standards and Technology were observed with a at- eld grazing incidence spectrometer in the wavelength region of about 4 nm to 20 nm

NVLAP Carpet and Carpet Cushion

June 8, 2020
Author(s)
Timothy W. Rasinski
NIST Handbook 150-6 specifies the technical requirements and provides guidance for the accreditation of laboratories under the NVLAP Carpet and Carpet Cushion Laboratory Accreditation Program (CCC Program).

Room-temperature skyrmions in strain-engineered FeGe thin films

June 8, 2020
Author(s)
Sujan Budhathoki, Arjun Sapkota, Ka M. Law, Smriti Ranjit, Bhuwan Nepal, Brian Hoskins, Arashdeep S. Thind, Albina Y. Borisevich, Michelle E. Jamer, Travis J. Anderson, Andrew D. Koehler, Karl D. Hobart, Gregory M. Stephen, Don Heiman, Tim Mewes, Rohan Mishra, James C. Gallagher, Adam J. Hauser
Skyrmion electronics hold great promise for low energy consumption and stable high information density, and stabilization of Skyrmion lattice (SkX) phase at or above room temperature is greatly desired for practical use. Topological Hall Effect can be used

Color, Structure, and Rheology of a Diblock Bottlebrush Copolymer Solution

June 7, 2020
Author(s)
Matthew A. Wade, Dylan Walsh, Johnny Ching-Wei Lee, Elizabeth Kelley, Kathleen Weigandt, Damien Guironnet, Simon A. Rogers
A structure-property-process relation is established for a diblock bottlebrush copolymer solution, through a combination of rheo-neutron scattering, imaging, and rheological measurements. Polylactic acid-b-polystyrene diblock bottlebrush copolymers were

Mid-Infrared Dual Frequency Comb Spectroscopy for Combustion Analysisin the 2.8 to 5 micron Spectral Region

June 7, 2020
Author(s)
Ian Coddington, Nathan R. Newbury, Greg Rieker, Amanda S. Makowiecki, Daniel Herman, Nazanin Hoghooghi, Elizabeth F. Strong, Gabriel Ycas, Fabrizio Giorgetta, Ryan Cole, Caelan Lapointe, Jeff Glusman, John Daily, Peter E. Hamlington
We demonstrate the application of mode-locked mid-infrared dual frequency comb spectroscopy for combustion analysis. With two settings of the same dual-comb system, the measurement spans 1500 cm-1 (2.8 to 5 microns) with 0.0067 cm-1 (200 MHz) point spacing
Displaying 6351 - 6375 of 74292