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Efficiently gate-tunable ferromagnetism in ferromagnetic semiconductor-Dirac semimetal p-n heterojunctions

March 6, 2026

Author(s)

Emma Steinebronn, Saurav Islam, Abhinava Chatterjee, Bimal Neupane, Alexander Grutter, Christopher Jensen, Julie Borchers, Timothy Charlton, Wilson J. Yanez-Parreno, Juan Chamorro, Tanya Berry, Supriya Ghosh, K. A. Nivedith, K. A. Mkhoyan, Tyrel McQueen, Yuanxi Wang, Chaoxing Liu, Nitin Samarth

We use molecular beam epitaxy to develop a gate tunable p-n heterojunction that interfaces a canonical Dirac semimetal, Cd3As2, and a ferromagnetic semiconductor, In1−xMnxAs, with perpendicular magnetic anisotropy. Measurements of the anomalous Hall effect

Quantifying pairwise similarity of ignitable liquids analyzed by GC-MS: A comparison of four methods

March 5, 2026

Author(s)

Mary Gregg, Grace Boyer, Jennifer Berry

For experiments that require the extraction and concentration of ignitable liquids, quantitatively comparing the similarity between samples obtained under experimental conditions to reference samples provides a straightforward way of defining the

Maturation of computational materials approaches in qualification and certification for metal additive manufacturing (as an example of process-intensive materials) in aviation

March 4, 2026

Author(s)

Edward Glaessgen, Michael Gorelik, Lyle Levine, Corbett Battaile, Michael Kane, Nam Phan, Alexander Plotkowski, Edwin Schwalbach, Derrick Lamm, Narendran Raghavan, Nate Ashmore, Richard Barto, James Dobbs, Matthew Lynch, Markus Heinimann, Peter Kantzos, Alonso Peralta-Duran, Carl Popelar, Prabhjot Singh, Suresh Sundarraj, Paul Toivonen, Vasisht Venkatesh, Bret Vogel, Deborah Whitis, Harry Millwater, Anthony Rollett, Sankaran Mahadevan, Caglar Oskay, Todd Palmer, Gregory Wagner

Changes to NIST Air-Kerma Standards and ADCL Calibration Coefficients Following Adoption of ICRU 90 Recommendations

March 3, 2026

Author(s)

Michael Mitch

N/A

DNA polymerase characteristics influence noise levels in sequencing of short tandem repeats

March 3, 2026

Author(s)

Tova Lindh, Maja Sidstedt, Kevin Kiesler, Peter Vallone, Johannes Hedman

Polymerase chain reaction (PCR) applications including sequencing rely on accurate thermostable DNA polymerases. Polymerization errors may hinder the detection of low-level DNA variants such as mutations in clinical samples or DNA from minor contributors

QDFlow: A Python package for physics simulations of quantum dot devices

March 3, 2026

Author(s)

Donovan Buterakos, Sandesh Kalantre, Joshua Ziegler, Jacob Taylor, Justyna Zwolak

Recent advances in machine learning (ML) have accelerated progress in calibrating and operating quantum dot (QD) devices. However, most ML approaches rely on access to large, representative datasets designed to capture the full spectrum of data quality

Influence of Ligament Size and Corresponding Tolerances on the Results of Charpy Impact Tests

March 1, 2026

Author(s)

Enrico Lucon

The most popular international test standards for Charpy testing, namely ASTM E23, ASTM A370, and ISO 148-1, prescribe significantly different tolerances for the specimen ligament length, ranging from ±0.025 mm (E23) to ±0.01 mm (A370). A study conducted

Final report: Ecotoxicity of PFAS-Free Fire Fighting Foams: Fish and Aquatic Invertebrate Species ER20-1518

February 27, 2026

Author(s)

Edward Wirth, Marie DeLorenzo, Peter Key, Katy Chung, David Moore, Guilherme Lotufo, John Kucklick, Katherine Peter, Jessica Reiner

The Department of Defense (DoD) is actively engaging in research to identify fluorine free foams (F3) that do not contain per- and poly-fluorinated alkyl substances (PFAS) as replacements for traditional Aqueous Film Forming Foams (AFFF) products that

Selection-free whole genome transplantation revives dead microbes

February 27, 2026

Author(s)

Zumra Seidel, Nacyra Assad-Garcia, Vanya Paralanov, Feilun Wu, Olivia Chao, Elizabeth Strychalski, Eugenia Romantseva, Tyler Goshia, Craig Venter, John Glass

Selection-free whole genome transplantation revives dead microbes

February 27, 2026

Author(s)

Zumra Seidel, Nacyra Assad-Garcia, Vanya Paralanov, Feilun Wu, Olivia Chao, Elizabeth Strychalski, Eugenia Romantseva, Tyler Goshia, Craig Venter, John Glass

U.S. Election Expert Perspectives on End-to-End Verifiable Voting Systems

February 27, 2026

Author(s)

Julie Haney, Shanee Dawkins, Sandra Prettyman, Mary Theofanos, Kristen Greene, Kristin Koskey, Jody Jacobs

By using cryptographic techniques, end-to-end verifiable (E2EV) voting systems have been proposed as a way to increase voter trust and confidence in elections by providing the public with direct evidence of the integrity of election systems and outcomes

Certification of Standard Reference Material(R)s 3672a & 3673a: Organic Contaminants in Smokers' Urine (Frozen) & Organic Contaminants in Non-Smokers' Urine (Frozen)

February 25, 2026

Author(s)

Ashley Russell, Ben Blount, Julianne Botelho, Christina Brosius, Carolyn Burdette, Antonia Calafat, Johanna Camara, Jun Feng, Nathanael Heckert, Jennifer Hoguet, Kevin Huncik, Maria Morel Espinosa, Maria Ospina, Jared Ragland, Christopher Reese, Michael Rybak, Tiffany Seyler, Liza Valentin-Blasini, Lanqing Wang, Elena Wood, Baoyun Xia

Standard Reference Material (SRM) 3672a Organic Contaminants in Smokers' Urine (Frozen) and SRM 3673a Organic Contaminants in Non-Smokers' Urine (Frozen) are intended for use in evaluating analytical methods for the determination of selected naturally

On the Physical Interpretation of Adjoint Methods for Sensitivity Analysis, Part I: Self-Adjoint Linear Systems

February 25, 2026

Author(s)

Vijay Srinivasan

Engineers and scientists rely on computational models not just to predict outcomes, but to understand which input parameters most influence those outcomes. However, answering this question for models with thousands of inputs is computationally prohibitive

The Dynamic Polymer Annotated Library: An automated approach to curating materials science literature

February 25, 2026

Author(s)

Kathryn Miller, Christopher Cooper

It remains challenging to curate data about the design, properties, and applications for a given class of materials across thousands of papers to identify emerging trends and efficiently train new artificial intelligence (AI) models. Here, we present a

NISTIR 7082: Proficiency Testing Policy and Plan for State Weights and Measures Laboratories (2026 Ed.)

February 24, 2026

Author(s)

Micheal Hicks, Elizabeth Koncki, Tobias Herman, Isabel Baucom, Katrice Lippa

This publication provides the policies and plans for the Proficiency Testing (PT) Program of the National Institute of Standards and Technology (NIST) Office of Weights and Measures (OWM). This OWM Proficiency Testing policy and plan has been updated to

Cross-Dataset Semantic Segmentation Performance Analysis: Unifying NIST Point Cloud City Datasets for 3D Deep Learning

February 23, 2026

Author(s)

Alexander Dimopoulos, Joseph Grasso

This study analyzes semantic segmentation performance across heterogeneously labeled point cloud datasets focused on emergency response applications. Using NIST's Point Cloud City dataset from Enfield and Memphis collections, we investigate the fundamental

Establishing Measurement Assurance via Interlaboratory Characterization: Consensus Physical Titer for Candidate Reference Materials

February 23, 2026

Author(s)

Jamie Almeida, Edward Kwee, Lili Wang, Sheng Lin-Gibson

Introduction Gene therapy manufacturing requires standardized analytical characterization of viral and non-viral vectors to assess gene delivery system quality. Lack of reproducibility in physical titer measurements makes product comparability and

Harmonizing Gene Delivery: Global Standardization of Terminology and Quantification

February 23, 2026

Author(s)

Edward Kwee, Jamie Almeida, Sheng Lin-Gibson

Introduction Gene delivery systems, consisting of viral and non-viral vectors, are heterogeneous preparations with a variety of assays to describe identity, quantity, and potency. However, a significant lack of standardization in terminology and reporting

Utilizing Pre-trained Language Models to Support Circular Design Decision-Making

February 23, 2026

Author(s)

Ananya Nandy, Ashley Hartwell, Katherine Morris

Circular practices (e.g., extending product/component life and recovering end-of-life products) can divert products from waste streams, creating alternative material sources and resilient production systems. Recently developed design guidelines and

Annual Report on the U.S. Manufacturing Economy: 2025

February 20, 2026

Author(s)

Douglas Thomas

This report provides a statistical review of the U.S. manufacturing industry. There are three aspects of U.S. manufacturing that are considered: (1) how the U.S. industry compares to other countries, (2) the trends in the domestic industry, and (3) the

Integrating Analytical and Numerical Approaches to Quantify Flow Work in Rate-of-Rise Gas Flow Standards

February 20, 2026

Author(s)

Max Low, Aaron Johnson, Pragya Natarajan, Jodie Pope

Flow work makes it challenging to directly measure the gas temperature in rate-of-rise (RoR) standard collection tanks during filling. Also known as the heat of compression, flow work produces a transient, spatially non-uniform temperature profile that

Breast imaging with ultra-low field MRI

February 19, 2026

Author(s)

Sheng Shen, Neha Koonjoo, Friderike Longarino, Mansi Saksena, Torben Hornung, Stephen Ogier, Susu Yan, Thomas Bortfeld, Kathryn Keenan, Matthew Rosen

Reshaping the Quantum Arrow of Time

February 19, 2026

Author(s)

Luis Pedro Garcia-Pintos, Alexey Gorshkov, Yi-Kai Liu

Data Collection Instrument: Risk Preference in Community Resilience Planning

February 18, 2026

Author(s)

Christina Gore, Jennifer Helgeson, Caitlin Grady, Ireland Crowther, Rithika Dulam, Tasnim Ibn Faiz, Kenneth Harrison

This Data Collection Instrument (DCI) publication outlines the development and application of a survey to study the differences between risk preferences of an individual making choices at the individual and community levels. Individuals and communities

NIST conference papers fiscal year 2025

February 18, 2026

Author(s)

Katelynd Bucher, Julie Jew, Kathryn Miller

This Special Publication represents the work of researchers at professional conferences, as reported by NIST employees in Fiscal Year 2025 (October 1, 2024–September 30, 2025).

Advanced communications
-Open Radio Access Network (Open-RAN)
-Quantum communications
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Artificial intelligence
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Bioscience
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Buildings and Construction
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Chemistry
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Forensic Science
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Health
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Information technology
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Nanotechnology
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