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Journals

Lamellar and bundled domain rotations in barium titanate

August 27, 2018

Author(s)

Jane A. Howell, Mark D. Vaudin, Lawrence Henry Friedman, Robert F. Cook

Cross-correlation of electron backscatter diffraction patterns has been used to generate rotation maps of single crystals of tetragonal barium titanate (BaTiO3)...

Tunable mid-infrared generation via wide-band four-wave mixing in silicon nitride waveguides

August 27, 2018

Author(s)

Abijith S. Kowligy, Daniel D. Hickstein, Alexander Lind, David Carlson, Henry R. Timmers, Nima Nader, Daniel Maser, Daron Westly, Kartik Srinivasan, Scott Papp, Scott Diddams

We demonstrate wide-band frequency down-conversion to the mid-infrared (MIR) using four-wave mixing (FWM) of near-infrared (NIR) femtosecond-duration pulses...

Part-per-million quantization and current-induced breakdown of the quantum anomalous Hall effect

August 27, 2018

Author(s)

Eli J. Fox, Ilan T. Rosen, Yanfei Yang, George R. Jones Jr., Randolph Elmquist, Xufeng Kou, Lei Pan, Kang L. Wang, D. Goldhaber-Gordon

In the quantum anomalous Hall effect, quantized Hall resistance and vanishing longitudinal resistivity are predicted to result from the presence of...

Precipitous change of the irreversible strain limit with heat-treatment temperature in Nb3Sn wires made by the restacked-rod process

August 26, 2018

Author(s)

Najib Cheggour, Theodore C. Stauffer, W. Starch, P. J. Lee, Jolene D. Splett, Loren F. Goodrich, A. K. Ghosh

The intrinsic irreversible strain limit εirr,0 of Nb3Sn superconducting wires, made by the restacked-rod process and doped with either Ti or Ta, undergoes a...

Impact of the New Generation of Josephson Voltage Standards in ac and dc Electric Metrology

August 24, 2018

Author(s)

Alain Rufenacht, Nathan E. Flowers-Jacobs, Samuel P. Benz

For decades, the quantum behavior of Josephson junctions has been developed and employed as intrinsic standards for voltage metrology. Conventional dc Josephson...

Measurement units as quantities of objects or values of quantities: a discussion

August 24, 2018

Author(s)

Charles D. Ehrlich, Leslie R. Pendrill, Luca Mari

Measurement units have historically been defined as quantities (specific properties) of objects, such as the mass of a particular piece of metal or the length...

A Readily Programmable, Fully Reversible Shape Switching Material

August 24, 2018

Author(s)

Matthew McBride, Alina Martinez, Lewis M. Cox, Marvin Alim, Kimberly Childress, Michael Beiswinger, Maciej Podgorski, Brady Worrell, Jason Killgore, Christopher N. Bowman

Liquid crystalline elastomers (LCEs) enable large scale reversible shape changes in polymeric materials; however, they require intensive, irreversible...

Phase Modulators Based on High Mobility Ambipolar ReSe2 Field-Effect Transistors

August 24, 2018

Author(s)

Nihar Pradhan, Carlos Garcia, Bridget Isenberg, Daniel Rhodes, Simin Feng, Shariar Memaran, Yan Xin, Amber McCreary, Angela R. Hight Walker, Aldo Raeliarijaona, Humberto Terrones, Mauricio Terrones, Steve McGill, Luis Balicas

We fabricated ambipolar field-effect transistors (FETs) from multi-layered triclinic ReSe2, mechanically exfoliated onto a SiO2 layer grown on p-doped Si. In...

Interaction-driven quantum Hall wedding cake-like structures in graphene quantum dots

August 24, 2018

Author(s)

Christopher Gutierrez, Daniel T. Walkup, Fereshte Ghahari Kermani, Cyprian Lewandowski, Joaquin R. Nieva, Kenji Watanabe, Takashi Taniguchi, Leonid Levitov, Nikolai Zhitenev, Joseph A. Stroscio

Interactions amongst relativistic particles underpin exotic behaviours in diverse systems ranging from quark-gluon plasmas to Dirac electron fluids in solids...

Conference Report: Representing Ethnic Diversity for Precision Medicine

August 23, 2018

Author(s)

Justin M. Zook, Luke Hickey, Benedict Paten, Robert Sebra, Valerie Schneider

There is a pressing need to better represent ethnic diversity with genomic resources and to do so in a way that maximizes utility for people working with the...

PRIMARY STANDARDIZATION OF THE MASSIC ACTIVITY OF A PROTACTINIUM-233 SOLUTION

August 23, 2018

Author(s)

Ryan P. Fitzgerald, Leticia S. Pibida

Protactinium-233 (233Pa) is used as a tracer for radiochemical analysis and is of particular interest as an isotope dilution mass spectrometry (IDMS) spike for...

Nanoparticle Architecture Preserves Magnetic Properties during Coating to Enable Robust Multi-Modal Functionality

August 23, 2018

Author(s)

Lauren E. Woodard, Cindi L. Dennis, Julie Borchers, Anilchandra Attaluri, Esteban Velarde, Charlene Dawidczyk, Peter C. Searson, Martin G. Pomper, Robert Ivkov

Mixed metal/metal oxide nanoparticles offer potential as multifunctional platforms for disease diagnosis and therapy, or 'theranostics' [1-9]. We describe the...

Diffusion in the Ti-Al-V system

August 23, 2018

Author(s)

Greta Lindwall, Kil-Won Moon, Zhangqi Chen, Michael J. Mengason, Maureen E. Williams, Justin Gorham, Ji-Cheng Zhao, Carelyn E. Campbell

Diffusion in the Ti-Al-V system is studied and a CΑLPHAD diffusion mobility description is developed. Diffusion couple experiments are used to obtain...

Complex coacervation in polyelectrolytes from a coarse-grained model

August 22, 2018

Author(s)

Vivek M. Prabhu, Marat Andreev, Jian Qin, Matthew Tirrell, Juan J. de Pablo, Jack F. Douglas

Polyelectrolyte coacervation refers to the formation of distinct liquid phases that arise when polyelectrolytes of opposite charge are mixed under appropriate...

Complex coacervation in polyelectrolytes from a coarse-grained model

August 22, 2018

Author(s)

Jack F. Douglas, Marat Andreev, Juan J. DePablo, Vivek Prabhu, Matthew Tirrell

Polyelectrolyte coacervation refers to the formation of distinct liquid phases that arise when polyelectrolytes are mixed under appropriate polymer and salt...

Quadrature Histograms in Maximum Likelihood Quantum State Tomography

August 22, 2018

Author(s)

Leonardo E. Silva, Scott Glancy, Hilma H. Macedo De Vasconcelos

Quantum state tomography aims to determine the quantum state of a system from measured data and is an essential tool for quantum information science. When...

Photonic Topological Anderson Insulators

August 22, 2018

Author(s)

Simon St?tzer, Yonatan Plotnik, Yaakov Lumer, Paraj T. Bhattacharjee, Netanel Lindner, Mordechai Segev, Mikael Rechtsman, Alexander Szameit

Quantifying Carboxylic Acid Concentration in Model Polyamide Desalination Membranes via Fourier Transform Infrared Spectroscopy

August 21, 2018

Author(s)

Tawanda J. Zimudzi, Kathleen E. Feldman, Michael A. Hickner, Christopher Stafford

Carboxylic acid groups impart hydrophilicity and ionizable groups to polyamide membranes for desalination, hence influencing water and ion transport through the...

Bubble-Point Measurements and Modeling of Binary Mixtures of Linear Siloxanes

August 20, 2018

Author(s)

Luuc Keulen, Elisabeth Mansfield, Ian Bell, Andrea Spinelli, A. Guardone

The bubble-point pressures of three binary mixtures of linear siloxanes have been mea4 sured. The binary mixtures consist of hexamethyldisiloxane (MM) which is...

Fe₂MnGe: A Hexagonal Heusler Analogue

August 20, 2018

Author(s)

S. Keshavarz, N. Naghibolashrafi, Michelle E. Jamer, K. Vinson, D. Mazumdar, Cindi L. Dennis, William D. Ratcliff, Julie Borchers, A. Gupta, P. LeClair

Fe 2MnGe is a potential half-metallic full-Heusler L2 1 ferromagnetic compound with large spin polarization (approximately equal}97%) useful for various...

Self-consistent modeling of anisotropic interfaces and missing orientations: Derivation from phase-field crystal

August 20, 2018

Author(s)

Nana Ofori Opoku, James A. Warren, P W. Voorhees

Highly anisotropic interfaces play an important role in the development of material microstructure. Using the diffusive atomistic phase-field crystal (PFC)...

Bottom-up Filling of Damascene Trenches with Gold in a Sulfite Electrolyte

August 19, 2018

Author(s)

Daniel Josell, Thomas P. Moffat

Superconformal Au deposition is demonstrated in a Na3Au(SO3)2 + Na2SO3 electrolyte including Bi3+. Micromolar additions of the Bi3+ to the electrolyte catalyze...

Real-Time Acoustic Emission Monitoring of Powder Mass Flow Rate for Direct Energy Deposition

August 18, 2018

Author(s)

Justin G. Whiting, Adam Springer, Federico Sciammarella

The material delivery rate in the direct energy deposition (DED) process must be monitored and controlled to ensure a reliable and repeatable additive...

Methane Storage in Paddlewheel-Based Porous Coordination Cages

August 18, 2018

Author(s)

Casey A. Rowland, Gregory R. Lorzing, Eric J. Gosselin, Benjamin Trump, Glenn P. A. Yap, Craig Brown, Eric D. Bloch

Although gas adsorption properties of extended three-dimensional metal-organic materials have been widely studied, they remain relatively unexplored in porous...

Residual Stress in Polycrystalline Alumina: Comparison of Two-Dimensional Maps and Integrated Scans in Fluorescence-Based Measurements

August 18, 2018

Author(s)

Chris A. Michaels, Robert F. Cook

The spatially heterogeneous residual stress fields in a series of three polycrystalline alumina materials are compared using two fluorescence-based measurement...

Photochemical Dynamics of a Trimethyl-Phosphine Derivatized [FeFe]-Hydrogenase Model Compound

August 17, 2018

Author(s)

Edwin J. Heilweil, Rachel L. Meyer, Tara M. Biser, Anet D. Zhandosova, Christopher J. Stromberg

Coupling photosensitizers with [FeFe]-hydrogenase model compounds can potentially create light- driven catalysts for production of hydrogen gas from acidic...

Cryogenic Primary Standard for Optical Fibre Power Measurement

August 17, 2018

Author(s)

Malcolm G. White, Zeus Ruiz, Christopher S. Yung, Igor Vayshenker, Nathan A. Tomlin, Michelle S. Stephens, John H. Lehman

NIST has completed commissioning a new, state-of-the-art cryogenic primary standard for optical fibre power measurement and calibration. It establishes for the...

Optical Properties of Meloxicam in the Far-Infrared Spectral Region

August 17, 2018

Author(s)

Yusuf S. Aytekin, Mustafa Koturk, Adam Zaczek, Timothy M. Korter, Edwin J. Heilweil, Okan Esenturk

One of the most commonly used nonsteroidal anti-inflammatory active pharmaceutical ingredient called Meloxicam has been characterized spectroscopically both by...

Influence of wind tunnel test duration on wind load factors

August 17, 2018

Author(s)

Dat Duthinh, Adam L. Pintar, Emil Simiu

A methodology is presented for calculating the uncertainty associated with the estimation of peak pressure coefficients from wind tunnel test records of various...

Readout architectures for superconducting nanowire single photon detectors

August 16, 2018

Author(s)

Adam N. McCaughan

Advances in the development of superconducting nanowire single photon detectors (SNSPD) have guaranteed that they remain a leading photon detection technology...

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