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Search Publications

NIST Authors in Bold

Displaying 2076 - 2100 of 2915

Long-Range Magnetic Order in Hydroxide-Layer-Doped (Li 1-x-y Fe x Mn y OD)FeSe

March 11, 2020
Author(s)
Brandon Wilfong, Xiuquan Zhou, Huafei Zheng, Navneeth Babra, Craig Brown, Jeffrey W. Lynn, Keith M. Taddei, Johnpierre Paglione, Efrain E. Rodriguez
The (Li 1-xFe xOH)FeSe superconductor has been suspected to exhibit long-range magnetic ordering due to Fe substitution in the LiOH layer. However, no direct observation such as magnetic reflection from neutron diffraction has be reported. Here, we use a

Phase Field Benchmark Problems Targeting Fluid Flow and Electrochemistry

January 28, 2020
Author(s)
Andrea Jokisaari, Wenkun Wu, P W. Voorhees, Jonathan E. Guyer, James A. Warren, Olle G. Heinonen
In this work, a third set of benchmark problems for phase field models are presented. These problems are being jointly developed by the Center for Hierarchical Materials Design (CHi- MaD) and the National Institute of Standards and Technology (NIST) along

NIST Big Data Interoperability Framework: Volume 4, Security and Privacy

October 21, 2019
Author(s)
Wo L. Chang, Arnab Roy, Mark Underwood
Big Data is a term used to describe the large amount of data in the networked, digitized, sensor-laden, information-driven world. While opportunities exist with Big Data, the data can overwhelm traditional technical approaches and the growth of data is

NIST Big Data Interoperability Framework: Volume 6, Reference Architecture

October 21, 2019
Author(s)
Wo L. Chang, David Boyd, Orit Levin
Big Data is a term used to describe the large amount of data in the networked, digitized, sensor-laden, information-driven world. While opportunities exist with Big Data, the data can overwhelm traditional technical approaches, and the growth of data is

Guide for Security-Focused Configuration Management of Information Systems

October 11, 2019
Author(s)
Arnold Johnson, Kelley L. Dempsey, Ronald S. Ross, Sarbari Gupta, Dennis Bailey
[Includes updates as of October 10, 2019] Guide for Security-Focused Configuration Management of Information Systems provides guidelines for organizations responsible for managing and administering the security of federal information systems and associated

Nanobolometer with ultralow noise equivalent power

October 11, 2019
Author(s)
Roope J. Kokkoniemi, Joonas Govenius, Visa Vesterinen, Russell Lake, A M. Gunyho, K-Y Tan, S Simbierowicz, Leif Gronberg, J Lehtinen, M Prunnila, Juha Hassel, Antti Lamminen, O P. Saira, Mikko Mottonen
Since the introduction of bolometers more than a century ago, they have been used in various applications ranging from chemical sensors, consumer electronics, and security to particle physics and astronomy. However, faster bolometers with lower noise are

Data-driven approaches to optical patterned defect detection

September 5, 2019
Author(s)
Mark-Alexander Henn, Hui Zhou, Bryan M. Barnes
Computer vision and classification methods have become increasingly popular in recent years due to ever-increasing computation power. While advances in semiconductor devices are the basis for this growth, few publications have probed the benefits of data

A Review Of Machine Learning Applications In Additive Manufacturing

August 17, 2019
Author(s)
Saadia A. Razvi, Shaw C. Feng, Anantha Narayanan Narayanan, Yung-Tsun Lee, Paul Witherell
Variability in product quality continues to pose a major barrier to the widespread application of additive manufacturing (AM) processes in production environment. Towards addressing this barrier, the monitoring of AM processes and the measuring of AM

Development of a new UHV/XHV pressure standard (Cold Atom Vacuum Standard)

November 10, 2017
Author(s)
Julia Scherschligt, James A. Fedchak, Daniel Barker, Stephen Eckel, Nikolai Klimov, Constantinos Makrides, Eite Tiesinga
The National Institute of Standards and Technology has recently begun a program to develop a primary pressure standard that is based on ultra-cold atoms, covering a pressure range of 1 × 10-6 Pa to 1 × 10-10 Pa and possibly lower. These pressures

Chapter 4. On-wafer measurements of RF nanoelectronic devices

September 15, 2017
Author(s)
Thomas M. Wallis, Pavel Kabos
The preceding chapters have introduced the core concepts and techniques of microwave measurements, in general, and techniques for microwave measurements of extreme impedance devices, in particular. Here, we narrow the focus further to on-wafer, microwave

Morphological characterization of fullerene and fullerene-free organic photovoltaics by combined real and reciprocal space techniques

May 26, 2017
Author(s)
Donglin Zhao, Qinghe Wu, Luping Yu, Harald Ade, Dean DeLongchamp, Lee J. Richter, Subhrangsu Mukherjee, Andrew Herzing
Morphology can play a critical role in determining function in organic photovoltaic (OPV) systems. Recently molecular acceptors have showed promise to replace¬ fullerene derivatives as acceptor materials in bulk heterojunction solar cells and have achieved

Arbitrarily fast quantum computation with bounded energy

March 6, 2017
Author(s)
Stephen P. Jordan
One version of the energy-time uncertainty principle states that the minimum time for a quantum system to evolve from a given state to any orthogonal state is h/(4 Δ E) where Δ E is the energy uncertainty. Many subsequent works have interpreted this as

Model for Adhesion-Based Energy Dissipation During Friction

February 19, 2017
Author(s)
Michael Nosonovsky, Stephen M. Hsu
Adhesion plays a significant role in Nanoscale interfacial friction for basically non-adhesive surfaces (no chemical bonding). The adhesion forces are composed of van der Waals forces and the contact force from surface contact. The van der Waals forces are

Trapped-ion optical atomic clocks at the quantum limits

January 31, 2017
Author(s)
David R. Leibrandt, Samuel M. Brewer, Jwo-Sy Chen, Aaron M. Hankin, David B. Hume, David J. Wineland, Chin-Wen Chou
Frequency and its inverse, time, are the most accurately measured quantities. Historically, improvements in the accuracy of clocks have enabled advances in navigation, communication, and science. Since 1967, the definition of the SI second has been based

Cycle Basis Markov Chains for the Ising Model

January 1, 2017
Author(s)
Noah S. Streib, Amanda A. Streib
The ferromagnetic Ising model with zero applied field reduces to sampling even subgraphs X of a graph G with probability proportional to $\lambda^|E(X)|}$, for $\lambda \in [0,1]$. In this paper, we present a class of Markov chains for sampling subgraphs

Spatially resolved ferroelectric domain-switching-controlled magnetism in Co 40 Fe 40 B 20 /Pb(Mg 1/3 Nb 2/3 ) 0.7 Ti 0.3 O 3 multiferroic heterostructure

December 27, 2016
Author(s)
Peisen Li, Yonggang Zhao, Sen Zhang, Aitian Chen, Dalai Li, Jing Ma, Yan Liu, Daniel T. Pierce, John Unguris, Hongguang Piao, Huiyun Zhang, Meihong Zhu, Xiaozhong Zhang, Xiufeng Han, Mengchun Pan, Ce-Wen Nan
Intrinsic spatial inhomogeneity or phase separation in cuprates and manganites etc., related to electronic and/or magnetic properties, has attracted much attention due to its significance in fundamental physics and applications. Here we use scanning Kerr
Displaying 2076 - 2100 of 2915
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