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Journals

Orientation of Thin Polyamide Layer-by-Layer Films on Non-Porous Substrates

December 16, 2021

Author(s)

Tawanda J. Zimudzi, Sarah E. Sheffield, Kathleen E. Feldman, Peter Beaucage, Dean DeLongchamp, Douglas I. Kushner, Christopher Stafford, Michael A. Hickner

The orientation of polyamide thin films on non-porous substrates was investigated using Fourier transform infrared (FTIR) spectroscopy and corroborated by near...

The causal relationship between melt pool geometry and energy absorption measured in real time during laser-based manufacturing

December 16, 2021

Author(s)

Brian Simonds, Jack R. Tanner, Aly Artusio-Glimpse, Paul A. Williams, Niranjan Parab, Cang Zhao, Tao Sun

During laser powder bed fusion additive manufacturing, a protean pool of molten metal governs a complex energy absorption process as it presents as either a...

Path-integral calculation of the third dielectric virial coefficient of noble gases

December 15, 2021

Author(s)

Giovanni Garberoglio, Allan H. Harvey, Bogumil Jeziorski

We present a rigorous framework for fully quantum calculation of the third dielectric virial coefficient C_eps(T) of noble gases, including exchange effects...

Perpendicular magnetic tunnel junctions with multi-interface free layer

December 15, 2021

Author(s)

Pravin Khanal, Bowei Zhou, Magda Andrade, Yanliu Dang, Albert Davydov, Ali Habiboglu, Jonah Saidian, Adam Laurie, Jian-Ping Wang, Daniel Gopman, Weigang Wang

Future generations of magnetic random access memory demand magnetic tunnel junctions that can provide simultaneously high magnetoresistance, strong retention...

Universal Dynamics of Magnetic Monopoles in Two-Dimensional Kagome Ice

December 15, 2021

Author(s)

Hiroshi Takatsu, Kazuki Goto, Taku J. Sato, Jeffrey W. Lynn, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Ryuji Higashinaka, Kazuyuki Matsuhira, Zenji Hiroi, Hiroaki Kadowaki

A magnetic monopole in spin ice is a novel quasiparticle excitation in condensed matter physics, and we found that the AC frequency dependent magnetic...

Ultra-broadband Kerr microcomb through soliton spectral translation

December 14, 2021

Author(s)

Gregory Moille, Edgar Perez, Jordan Stone, Ashutosh Rao, Xiyuan Lu, Tahmid Rahman, Yanne Chembo, Kartik Srinivasan

Broad bandwidth and stable microresonator frequency combs are critical for optical atomic clocks, optical frequency synthesis, dual comb spectroscopy, and a...

Considerations in applying neutron depth profiling to Li-ion battery research

December 14, 2021

Author(s)

Daniel Lyons, Jamie Weaver, Anne Co

Li distribution within micron-scale battery electrode materials is quantified with neutron depth profiling (NDP). This method allows determination of intra- and...

Calibration of Triaxial Accelerometers by Constant Rotation in the Gravitational Field

December 13, 2021

Author(s)

Michael Gaitan, Jon Geist

We extend the use of the intrinsic properties calibration method for triaxial accelerometers that we reported earlier from discrete angular steps to using a...

Modification of the optical properties of molecular chains upon coupling to adatoms

December 13, 2021

Author(s)

Garnett W. Bryant, Marvin Muller, Miriam Kosik, Marta Pelc, Karolina Slowik, Andres Ayuela, Carsten Rockstuhl

Adsorbed atoms (adatoms) coupled to the matrix of solid state host materials as impurities can signi cantly modify their properties. Especially in low...

An active dendritic tree can mitigate fan-in limitations in superconducting neurons

December 13, 2021

Author(s)

Bryce Primavera, Jeff Shainline

Superconducting electronic circuits have much to o er with regard to neuromorphic hardware. Superconducting quantum interference devices (SQUIDs) can serve as...

Calculation of likelihood ratios in forensic glass comparisons; introduction to a R code and Shiny app applied to existing background glass elemental databases

December 13, 2021

Author(s)

Anuradha Akmeemana, Ruthmara Corzo, Jodi Webb, Emily Haase, Jose Almirall

The use of standardized and robust analytical methods for the quantitative analysis of the elemental composition of glass fragments enables the characterization...

Hygroscopic Tendencies of Substances Used as Calibrants for Quantitative Nuclear Magnetic Resonance Spectroscopy

December 13, 2021

Author(s)

Chris Suiter, Jason A. Widegren

Atmospheric moisture can contaminate calibrants for quantitative nuclear magnetic resonance (qNMR) spectroscopy and cause systematic errors in qNMR measurements...

A comparative study of subcell optoelectronic properties and energy losses in multijunction solar cells

December 11, 2021

Author(s)

Sai Meghasena Chavali, John Roller, Mario Dagenais, Behrang Hamadani

External luminescence quantum yields of subcells within several multijunction solar cells were measured using a calibrated hyperspectral imaging system in...

Solution Structures of Bacillus Anthracis Protective Antigen Proteins using Small Angle Neutron Scattering and Protective Antigen 63 Ion Channel Formation Kinetics

December 11, 2021

Author(s)

Ariel Michelman-Ribeiro, Kenneth A. Rubinson, Vitalii Silin, John J. Kasianowicz

We are studying the structures of bacterial toxins that form ion channels and catalyze macromolecule transport across membranes. For example, the crystal...

Incandescent lamp-based facility for measuring the long-term radiometric stability of spectrographs

December 10, 2021

Author(s)

Ping-Shine Shaw, John T. Woodward IV, B. Carol Johnson, Steven Brown, Howard W. Yoon

The stability of a spectrograph is a one of the most important characteristics affecting the spectrograph's radiometric performance. For many applications such...

A new implementation of OntoSTEP for flexible generation of ontology and knowledge graphs of product model data

December 10, 2021

Author(s)

Soonjo Kwon, Laetitia Monnier, Raphael Barbau, William Z. Bernstein

Barbau et al. (2012) propsoed OntoSTEP that enables the translation ofthe STandard for the Exchange of Product Model Data (STEP) schema andits instances to an...

Intrinsic staggered spin-orbit torque for the electrical control of antiferromagnets: Application to CrI3

December 10, 2021

Author(s)

Paul M. Haney, Fei Xue

Cavity Entanglement and State Swapping to Accelerate the Search for Axion Dark Matter

December 10, 2021

Author(s)

K. Wurtz, B.M. Brubaker, Y. Jiang, Elizabeth Ruddy, Dan Palken, Konrad Lehnert

In cavity-based axion dark matter detectors, quantum noise remains a primary barrier to achieving the scan rate necessary for a comprehensive search of the...

Data assimilation in 2D Burgers equation using a stabilized explicit scheme run backward in time

December 9, 2021

Author(s)

Alfred S. Carasso

The importance of combustion science to unravel complex processes for informal settlement fires, urban fires, and wildland-urban interface (WUI) fires

December 9, 2021

Author(s)

Samuel Manzello, Sayaka Suzuki

Devastating large outdoor fires have been responsible for destruction of vast amounts of infrastructure and loss of human life. At first glance, the complex...

Mixture model analysis of Transition Edge Sensor pulse height spectra

December 9, 2021

Author(s)

Kevin J. Coakley, Jolene D. Splett, Thomas Gerrits

To calibrate an optical transition edge sensor, for each pulse of the light source (e.g., pulsed laser), one must determine the ratio of the expected number of...

Spin qudit tomography and state reconstruction error

December 8, 2021

Author(s)

Michael A. Perlin, Diego Barberena, Ana Rey Ayala

HDX-MS and MD simulations provide evidence for stabilization of the IgG1— FcγRIa (CD64a) immune complex through intermolecular glycoprotein bonds

December 8, 2021

Author(s)

Kyle Anderson, Kerry Scott, Christina Bergonzo, Ioannis Karageorgos, Elyssia Gallagher, Venkata Tayi, Michael Butler, Jeffrey W. Hudgens

Previous reports present different models for the stabilization of the Fc—FcγRI immune complex. Although accord exists on the importance of L235 in IgG1 and...

Enhanced Concentration Fluctuations in Model Polyelectrolyte Coacervate Mixtures along a Salt Isopleth Phase Diagram

December 8, 2021

Author(s)

Vivek Prabhu, Yuanchi Ma, Samim Ali

A temperature (T) versus polymer concentration (cp) representation leads to non-overlapping coexistence curves prepared from different initial polymer...