Journals

Optical clock frequency ratios with uncertainty ≤ 3.2 × 10^−18

April 10, 2026

Author(s)

Alexander Aeppli, Willa Arthur-Dworschack, Kyle Beloy, Caitlin Berry, Tobias Bothwell, Angela Folz, Tara Fortier, Tanner Grogan, Youssef Hassan, Zoey Zimeng Hu, David Hume, Benjamin Hunt, Kyungtae Kim, Amanda Koepke, Dahyeon Lee, David Ray Leibrandt, Ben Lewis, Andrew Ludlow, Mason Marshall, Nicholas Nardelli, Harikesh Ranganath, Daniel Rodriguez Castillo, Jeffrey Sherman, Jacob Siegel, Suzanne Thornton, William Warfield, Jun Ye

We report high-precision frequency ratio measurements between optical atomic clocks based on 27Al+, 171Yb, and 87Sr. With total fractional uncertainties at or...

Wavefront mapping for absolute atom interferometry

April 10, 2026

Author(s)

Joseph Junca, John Kitching, William McGehee

Wavefront distortions are a leading source of systematic uncertainty in light-pulse atom interferometry, limiting absolute measurements of gravitational...

Ion-Pair Speciation in Aqueous Alkali Fluorides from Nuclear Magnetic Resonance of ¹⁹F

April 9, 2026

Author(s)

Malgorzata Musial, Samantha Miller, Christopher Suiter, Heidi Klem, Eugene Paulechka, Kathleen Schwarz, Jason Widegren, Demian Riccardi

We demonstrate that a combination of multiscale modeling and experimental 19F NMR can be used to examine the molecular details of how ion-pair speciation...

Impact of Deep-Level Traps on Carrier Mobility in β-Ga2O3 MOSFETs

April 7, 2026

Author(s)

Ory Maimon, Neil Moser, Pragya Shrestha, Minyeong Kim, Sang-Mo Koo, Kyle Liddy, Andrew Green, Kelson Chabak, Sujitra Pookpanratana, Qiliang Li

Ultra-wide bandgap β-Ga2O3-based power devices are promising and rapidly developing, but its mobility in field-effect transistors (FET) falls short of the...

Serum proteome of the Egyptian rousette bat (Rousettus aegyptiacus) reveals signatures of immunity, proteostasis, and metabolism

April 6, 2026

Author(s)

Brooke Genovese, Nistara Randhawa, Benjamin Neely, Gabriela Grigorean, Amy Schuh, Brian Amman, Jessica Elbert, Simon Anthony, Jonna Mazet, Jonathan Towner, Brian Bird

Bats are increasingly studied for their ability to coexist with diverse viruses of human health importance. While this focus has yielded insights into host...

Overcoming Roadblocks for Implementing AI/ML Methods for Materials Advancement

April 6, 2026

Author(s)

James Warren, Francesca Tavazza, Austin McDannald, Aaron Kusne, Howard Joress, David Hoogerheide, Brian DeCost, Kamal Choudhary, Debra Audus

The development of novel materials with tailored properties is a complex, multi-objective optimization problem that has long been a challenge in materials...

Characterization of Electronic Stress-Induced Changes in Multi-Layer MoS2

April 6, 2026

Author(s)

R. Colby Evans, Riccardo Torsi, Pavel Kabos, Jason Holm, Jason Killgore, Paul Owiredu, Gurpreet Singh, Jerzy Sadowski, Angela Hight Walker, Elisabeth Mansfield

Transition metal dichalcogenides like molybdenum disulfide (MoS2) are compelling for next-generation electronic devices. In this work, we investigate the impact...

Ultra-High Speed Printing Regime in Laser Powder Bed Fusion of Highly Reflective Metals

April 5, 2026

Author(s)

Natalya Kublik, Laura Duenas Gonzalez, David Deisenroth, zhengtao gan, Bruno Azeredo

Additive manufacturing of highly reflective metals, such as copper and aluminum, often entail excessive energy losses, especially in laser powder bed fusion...

Nanoscale mapping of composition and orientation in electrospun polymeric nanofibers loaded with carbon atomic wires

April 4, 2026

Author(s)

Simone Melesi, Devon Jakob, Jeremy Schultz, Adam Biacchi, Piotr Pińkowski, Bartłomiej Pigulski, CHIARA CASTIGLIONI, Chiara Bertarelli, Sławomir Szafert, Carlo Spartaco Casari, Andrea Centrone

This study yields a comprehensive nanoscale investigation of the composition and molecular orientation of electrospun poly(methyl methacrylate) (PMMA)...

Unification of Multi-Source and Multi-Fidelity Fragility Functions

April 4, 2026

Author(s)

Mohammadamin Hariri Ardebili, Siamak Sattar

The derivation of fragility functions through nonlinear dynamic analysis is a domain that has garnered significant attention historically. The majority of prior...

Bilateral Evaluation of Certified Reference Materials for Macro and Trace Elements in Food as Control Materials for spICP-MS

April 4, 2026

Author(s)

Filip Gregar, Zuzana Gajdosechova, Monique Johnson, Antonio Montoro Bustos, Katrin Loeschner

This article examines the suitability of existing certified reference materials (CRMs) for macro and trace elements in food as effective control materials for...

Electro-optic frequency comb Doppler Thermometry

April 1, 2026

Author(s)

Sean Bresler, Erin Adkins, Stephen Eckel, Tobias Herman, David A. Long, Benjamin Reschovsky, Daniel Barker

13 Abstract: We demonstrate a Doppler thermometer based on direct comb spectroscopy of an 85Rb vapor with an electro-optic frequency comb. The direct comb...

Improved Uniformity in Glass TSV Filling by Asymmetric Dwell Pulsed Potential Deposition

April 1, 2026

Author(s)

Eunsoo Shim, Youjung Kim, Ji Young Park, Mathew Weimer, Sara Harris, David Raciti, Bongyoung Yoo, Jae-Hong Lim, Yong-Ho Chao, Thomas Moffat, Daniel Josell

Filling of through vias in glass interposers is explored using an acid copper sulfate electrolyte containing dilute chloride and a polyether suppressor additive...

Impact of Measurement Setup on Cryogenic CMOS FET Characterization

March 31, 2026

Author(s)

Pragya Shrestha, Jason Campbell, Jhih-Wei Chen, Mau-Chung Frank Chang

Accurate cryogenic device characterization is essential for developing compact models to support scalable quantum control electronics based on advanced CMOS...

Standardized Approach for Assessing Wireless IoT Devices in Millimeter-Wave Industrial Work-Cell Channels

March 31, 2026

Author(s)

Mohamed Hany, Kate Remley, Paritosh Manurkar, Joshua Kast, Iyemeh Uchendu, Robert Horansky, Dylan Williams, Matthew Simons, Michael Frey, Lucas Koepke, Richard Candell

We present a standardized, repeatable test approach that replicates key features of measured industrial environments in a fully characterized hybrid test...

Smoke Production and Detection From Lithium Ion Battery Powered E-Scooter Fires in a Compartment

March 26, 2026

Author(s)

Amy Mensch, Emma Veley, Sebastian Seda, Artur Chernovsky

Increased use of lithium-ion batteries in consumer products poses a risk for fires caused by these devices to occur in homes. To characterize the residential...

A Comparison of Photoacoustic and Grayscale Measurements of Soot Deposition on Surfaces

March 25, 2026

Author(s)

Amy Mensch, Ryan Falkenstein-Smith, Shine Park

This study investigates the effectiveness of non-invasive soot deposition measurement techniques as a practical tool for fire investigators to quantify burn...

Dynamic Embedding Representation for Graph Neural Networks to Enhance Materials Property Prediction with Limited Datasets

March 24, 2026

Author(s)

Vishu Gupta, Kamal Choudhary, Youjia Li, Muhammed Nur Talha Kili, Daniel Wines, Wei-keng Liao, Alok Choudhary, Ankit Agrawal

Graph neural networks (GNNs) have proven effective in understanding and predicting diverse material properties, even when working with limited datasets. An...

Studies Of Water Films and Carbonation Via Neutron Scattering and Infrared Adsorption: In Situ Studies of Mg(OH)2 and Ca(OH)2

March 24, 2026

Author(s)

Hubert King, Ryan Murphy, Avery Baumann, Robert Dalgliesh, Dirk Honecker, Gregory Smith

Small-angle neutron scattering was used to investigate structural evolution during the carbonation of Ca(OH)₂ and Mg(OH)₂ under humidified CO₂, using both H₂O...

Nonequilibrium universality of the nonreciprocally coupled O(n1) × O(n2) model

March 23, 2026

Author(s)

Jeremy Young, Alexey Gorshkov, Mohammad Maghrebi

Study of the influence of cutting speed on diamond turning machining mechanisms for NiP

March 23, 2026

Author(s)

Liuqing Yang, Jesse Redford, Tongjun Liu, Brian Dutterer, Greg Caskey, Nan Li, Christopher Evans, Youxing Chen

A CFD-Based Digital Twin Framework for Transient MoCl5 Transport in an Experimental Atomic Layer Deposition Process

March 23, 2026

Author(s)

Abdulrahman Alghamdi, Feiyang Ou, Berc Kalanyan, James Maslar, Panagiotis Christofides

A physics-based digital twin framework is developed for transient molybdenum pentachloride (MoCl5) transport in an optically-accessible, experimental atomic...

Report on Reproducibility in Condensed Matter Physics

March 20, 2026

Author(s)

Ana Akrap, Dominic Bordelon, Shubhayu Chatterjee, E. Dan Dahlberg, Robert Devaty, Sergey M Frolov, Charles Gould, Laura Greene, Samaresh Guchhait, James Hamlin, Benjamin Hunt, Malcolm Jardine, Morteza Kayyalha, Rachel Kurchin, Vladyslav Kozii, Henry Legg, Igor Mazin, Vincent Mourik, A Baris Ozguler, Joaquin Peñuela Parra, Babak Seradjeh, Brian Skinner, Khandker Quader, Justyna Zwolak

We present recommendations to improve reproducibility and replicability in condensed matter physics. This area of physics has consistently produced both...

Stable numerical technique to calculate the bending of flexures with extreme aspect ratios

March 19, 2026

Author(s)

Benjamin Schreyer, Lorenz Keck, Jon Pratt, Stephan Schlamminger

In designing single-sided clamped flexures as part of torsion balances or pendulums for scientific use, structures become thin and long and semi-analytic...

Active compensation of the ac Stark shift in a two-photon rubidium optical frequency reference using power modulation

March 18, 2026

Author(s)

Yorick Andeweg, Matthew Hummon, John Kitching

We implement a feedback protocol to suppress the ac Stark shift in a two-photon rubidium optical frequency reference, reducing its sensitivity to optical power...

Whole Genome Transplantation: Methodology and Protocol

March 17, 2026

Author(s)

Zumra Seidel, Feilun Wu, Nacrya Assad-Garcia, Carole Lartigue-Pratt, Elizabeth Strychalski, Eugenia Romantseva, Sage Glass, Tyler Goshia, John Glass

Imaginary gauge potentials in a non-Hermitian spin-orbit coupled quantum gas

March 17, 2026

Author(s)

Ian Spielman, Junheng Tao, Emmanuel Mercado Gutierrez, Mingshu Zhao

In 1996, Hatano and Nelson proposed a non-Hermitian lattice model containing an imaginary Peierls phase [Phys.Rev.Lett.\bf 77}570--573 (1996)], which subsequent...

Low-resistance contacts for p-type monolayer tungsten diselenide transistors using metallic layered Nb0.3W0.7Se2

March 16, 2026

Author(s)

Zheng Sun, Aryan Afzalian, Peng Wu, Huairuo Zhang, Sergiy Krylyuk, Rahul Tripathi, Albert Davydov, Zhihong Chen, Joerg Appenzeller

Achieving low contact resistance is a critical challenge in the development of p-type transistors that use monolayer transition metal dichalcogenides, such as...

Opportunities and Gaps in Supply Chain Digital Twin Deployments, a Biopharmaceutical Industry Focus

March 16, 2026

Author(s)

Perawit Charoenwut, Boonserm Kulvatunyou, Stephen Wing

Digital twin (DT) is an emerging technology that promises to advance the performances in manufacturing and supply chain. This technology has been implemented...

A Quantitative Method to Assess DNA Extraction Efficiency

March 15, 2026

Author(s)

Lauren Mullen, Erica Romsos, Peter Vallone

A minimum amount of extracted and purified DNA is required for a forensic short tandem repeat (STR) DNA profile to be obtained from biological samples. In most...