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NIST Authors in Bold

Displaying 1 - 25 of 143831

Priming Additively Manufactured Cobalt-free Maraging Steels for Improved Properties via Changes to As-Built Microstructure

July 23, 2025
Author(s)
Alec Saville, Jake Benzing, Fan Zhang, Joseph Aroh, Jordan Weaver, Russell Evans, Nicholas Derimow, Samantha Webster, Nikolas Hrabe, Cassidy Allen, Newell Moser, May Martin, Jason Holm, Christin Aumayr, Tilman Seifert, Michael Hirtler
Supply chain challenges and health concerns have spurred the development of new Co-free, Cr-containing maraging steels with several new alloys already commercialized. These alloys are a less expensive and more sustainable form of the currently used Co

Tuning Incommensurate Charge Order in Ba1-xSrxAl4 and Ba1-yEuyAl4

July 20, 2025
Author(s)
Prathum Saraf, Eleanor M. Clements, Danila Sokratov, Shanta Saha, Peter Zavalij, Thomas Heitmann, Jeffrey Lynn, Camille Bernal-Chobin, Dipanjan Chaudhuri, Caitlin Kengle, Yue Su, Simon Bettler, Nathan Manning, Peter Abbamonte, Sananda Biswas, Roser Valenti, Johnpierre Paglione
The BaAl4-type structure family is home to a vast landscape of interesting and exotic properties, with descendant crystal structures hosting a variety of electronic ground states including magnetic, superconducting and strongly correlated electron

Effective Radar Cross Section in Close-Range Joint Communication and Sensing Applications

July 14, 2025
Author(s)
Steve Blandino, Jelena Senic, Neeraj Varshney, Jihoon Bang, Jack Chuang, Samuel Berweger, Jian Wang, Camillo Gentile, Nada Golmie
Radar Cross Section (RCS) is traditionally mea- sured under far-field conditions where targets are fully illumi- nated by the antenna beam. However, in close-range scenarios, such as those encountered in Joint Communication and Sensing (JCAS) systems, the

High-Stability Single-Ion Clock with 5.5 x 10^-19 Systematic Uncertainty

July 14, 2025
Author(s)
Mason Marshall, Daniel Rodriguez Castillo, Willa Dworschack, Alexander Aeppli, Kyungtae Kim, Dahyeon Lee, William Warfield, Nicholas Nardelli, Tara Fortier, Jun Ye, David Ray Leibrandt, David Hume
We report a single-ion optical atomic clock with fractional frequency uncertainty of 5.5 x 10^-19 and frequency stability of 3.5 x 10^-16/sqrttau/s}, based on quantum logic spectroscopy of a single 27Al+ ion. A co-trapped 25Mg+ ion provides sympathetic

Disorder-Induced Spin Excitation Continuum and Spin-Glass Ground State in the Inverse Spinel CuGa2O4

July 10, 2025
Author(s)
Zhentao Huang, Zhijun Xu, Shuaiwei Li, Qingchen Duan, Junbo Liao, Song Bao, Yanyan Shangguan, Bo Zhang, Hao Xu, Shufan Cheng, Zihang Song, Shuai Dong, Maofeng Wu, M. B. Stone, Yiming Qiu, Ruidan Zhang, Guangyong Xu, Zhen Ma, G. Gu, J. Tranquada, Jinsheng Wen
Spinel-structured compounds serve as prototypical examples of highly frustrated systems and are promising candidates for realizing the long-sought quantum spin liquid (QSL) state. However, structural disorder is inevitable in many real QSL candidates and

Integrated multi-port, multi-wavelength coherent optical source for beyond Tb/s optical links

July 10, 2025
Author(s)
Ali Pirmoradi, Jizhao Zang, Kaisarbek Omirzakhov, Zhehao Yu, Yan Jin, Scott Papp, Firooz Aflatouni
Multi-wavelength, multi-port light sources formed with a Kerr-soliton microcomb and a wavelength demultiplexer are a key part of optical links utilizing wavelength-division multiplexing. Critical and emerging technologies such as data-center connectivity

Inter-tool analysis of a NIST dataset for assessing baseline nucleic acid sequence screening

July 10, 2025
Author(s)
Tyler Laird, Kevin Flyangolts, Craig Bartling, Bryan Gemler, Jacob Beal, Tom Mitchell, Steven T. Murphy, Jens Berlips, Leonard Foner, Ryan Doughty, Felix Qunitana, Michael Nute, Todd J. Treangen, Gene D. Godbold, Krista Ternus, Tessa Alexanian, Nicole Wheeler, Samuel Forry
Nucleic acid synthesis is a dual-use technology that can benefit fields such as biology, medicine, and information storage. However, synthetic nucleic acids could also potentially be used negligently and ultimately cause harm, or be used with malicious

Non-resonant Two-photon X-ray Absorption in Cu

July 10, 2025
Author(s)
Joshua Kas, John Rehr, Joachim Stohr, John Vinson
We present a real-space Green's function theory and calculations of two-photon x-ray absorption (TPA). Our focus is on nonresonant K-shell TPA in metallic Cu, which has been observed experimentally at intense x-ray free electron laser (XFEL) sources. The

Reference Correlation of the Viscosity of Argon

July 10, 2025
Author(s)
Sofia Sotiriadou, Konstantinos Antoniadis, Marc Assael, Marcia Huber
This paper presents a new wide-ranging reference correlation for the viscosity of argon, incorporating recent ab initio dilute gas calculations and critically evaluated experimental data. The correlation is designed to be used with a high-accuracy

INTERNATIONAL ROADMAP FOR DEVICES AND SYSTEMS TM 2024 METROLOGY

July 9, 2025
Author(s)
Yaw Obeng, Elisabeth Mansfield, Albert Davydov, Bryan Barnes, Andras Vladar
The Metrology Chapter identifies emerging measurement challenges from devices, systems, and integration of new materials in the semiconductor industry and describes research and development pathways for meeting them. This includes but not limited to

NIST SP 1181 - Unit Pricing Guide - A Best Practice Approach to Unit Pricing (2025 Ed.)

July 9, 2025
Author(s)
John McGuire, David Sefcik, Katrice Lippa, Scott Dolan, Isabel Baucom
This guide was developed to provide retailers with information about the best practice requirements for the unit pricing of commodities. The guide consists of best practice approaches that will improve the accuracy and usability of unit pricing information

Quasi-Deterministic Channel Propagation Model for Human Sensing: Gesture Recognition Use Case

July 9, 2025
Author(s)
Jack Chuang, Raied Caromi, Jelena Senic, Samuel Berweger, Neeraj Varshney, Jian Wang, Anuraag Bodi, Camillo Gentile, Nada Golmie
We describe a quasi-determinstic channel propagation model for human gesture recognition reduced from real-time measurements with our context aware channel sounder, considering four human subjects and 20 distinct body motions, for a total of 120,000

Solvent Exclusion Effect on Infrared Absorption Spectroscopy

July 9, 2025
Author(s)
Young Lee, Charles Camp, Bonghwan Chon, Seong-Min Kim, Sang Hak Lee
Absorption spectroscopy of a solution containing an analyte solute typically uses the transmission through a solvent as a reference based on the assumption that the solvent does not absorb light. However, when a solvent absorbs light, the resulting
Displaying 1 - 25 of 143831
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