Journals

Oscillator metrology with software defined radio

May 24, 2016

Author(s)

Jeffrey A. Sherman, Robert Jordens

Analog electrical elements such as mixers, filters, transfer oscillators, isolating buffers, dividers, and even transmission lines contribute technical noise...

Development of surface chemical approaches for detection and characterization of multi-walled carbon nanotubes dispersed in a polymer composite

May 23, 2016

Author(s)

Justin M. Gorham, William A. Osborn, Jeremiah W. Woodcock, Jeffrey W. Gilman

Multi-walled carbon nanotubes (MWCNT) and other carbon nanofillers are used in different applications to enhance the materials and electrical properties of...

Structure Elucidation of Mixed-Linker Zeolitic Imidazolate Frameworks by Solid-State 1H CRAMPS NMR Spectroscopy and Computational Modeling

May 23, 2016

Author(s)

Ryan C. Nieuwendaal, Krishna Jayachandrababu, Ross Verploegh, Johannes Leisen, David Sholl, Sankar Nair

Mixed-linker zeolitic imidazolate frameworks (ZIFs) are nanoporous materials that exhibit continuous and controllable tunability of properties like effective...

k-asymmetric spin-splitting at the interface between transition metal ferromagnets and heavy metals.

May 23, 2016

Author(s)

Sergiy Grytsyuk, Abderrezak Belabbes, Paul M. Haney, Hyun-Woo Lee, Kyung Jin Lee, Mark D. Stiles, Udo Schwingenschlogl, Aurelien Manchon

We systematically investigate the spin-orbit coupling-induced band splitting originating from inversion symmetry breaking at the interface between a Co...

Physical Properties of the Ce₂MAl₇Ge₄ Heavy-Fermion Compounds (M = C0, Ir,Ni,Pd)

May 23, 2016

Author(s)

N. J. Ghimire, S. K. Cary, S. Eley, N. A. Wakeham, P. F. S. Rosa, T. Albrecht-Schmitt, Y. Lee, M. Janoschek, Craig Brown, L. Civale, J. D. Thompson, F. Ronning, E. D. Bauer

The synthesis, crystal structure and physical properties by means of single crystal x-ray diffraction, neutron powder diffraction, magnetic, thermal and...

Large-scale Time-lapse Microscopy of Oct4 Expression in Human Embryonic Stem Cell Colonies

May 22, 2016

Author(s)

Kiran Bhadriraju, Michael Halter, Julien M. Amelot, Peter Bajcsy, Joe Chalfoun, Antoine Vandecreme, Barbara Mallon, Kye-yoon Park, John T. Elliott, Subhash Sista, Anne L. Plant

Identification of critical characteristics of therapeutically active cells, and quantification of those characteristics, are essential for assuring consistency...

Large-scale Atomistic Simulations of Helium-3 Bubble Growth in Complex Palladium Alloys

May 21, 2016

Author(s)

Lucas M. Hale, Jonathan Zimmerman, Bryan Wong

Palladium is an attractive material for hydrogen and hydrogen-isotope storage applications due to its properties of large storage density and high diffusion of...

Single-particle-ICP-MS Advances

May 21, 2016

Author(s)

Antonio R. Montoro Bustos, Michael R. Winchester

Determining the core, corona, and total size of CdSeS/ZnS quantum dots by SEC/QELS and TEM

May 21, 2016

Author(s)

Leena M. Pitkanen, Andre Striegel

The size (hydrodynamic or Stokes radius, RH) of non-functionalized CdSeS/ZnS (core/shell) quantum dots (QDs) was characterized by size-exclusion chromatography...

Towards a dynamic pressure standard based on laser absorption spectroscopy

May 20, 2016

Author(s)

Kevin O. Douglass, Douglas A. Olson

We describe an approach for creating a cost-effective, field deployable dynamic pressure standard based on measurement of fundamental quantum properties of...

Single Molecule Detection of Heteropolytungstates and their Isomers in Solution With a Nanometer- scale Pore

May 20, 2016

Author(s)

Jessica H. Benjamini, John J. Kasianowicz, Arvind K. Balijepalli

We report a new technique to characterize poly- oxometalate (POM) structures at micromolar solution concentra- tion using single molecule nanopore-based...

Force Calibrations using Errors-in-Variables Regression and Monte Carlo Uncertainty Evaluations

May 20, 2016

Author(s)

Thomas W. Bartel, Sara Stoudt, Antonio M. Possolo

An errors-in-variables regression method is presented as an alternative to the ordinary least-squares regression computation currently employed for determining...

On Three decades of nanopore sequencing

May 20, 2016

Author(s)

John J. Kasianowicz, Sergey M. Bezrukov

Pore Chemistry and Size Control in Hybrid Porous Materials for Acetylene Capture from Ethylene

May 20, 2016

Author(s)

Xili Cui, Kaijie Chen, Huabin Xing, Qiwei Yang, Rajamani Krishna, Zongbi Bao, Hui Wu, Wei Zhou, Xinglong Dong, Yu Han, Bin Li, Qilong Ren, Michael J. Zaworotko, Banglin Chen

The trade-off between physical adsorption capacity and selectivity of porous materials is a major barrier for efficient gas separation and purification through...

Effective Spin-1⁄2 Scalar Chiral Order on Kagome Lattices in Nd₃Sb₃Mg₂O₁₄

May 20, 2016

Author(s)

A. Scheie, M. Sanders, J. Krizan, Yiming Qiu, R. J. Cava, Collin L. Broholm

We introduce Nd 3Sb 3Mg 2O 14 with ideal kagome lattices of neodymium ions in ABC stacking. Thermodynamic measurements show a Curie-Weiss temperature of θ cw =...

Geometrical pumping with a Bose-Einstein condensate

May 20, 2016

Author(s)

Lauren M. Aycock, Dina Genkina, Seiji Sugawa, Max Schemmer, Hsin I Lu, Ian Spielman

We realized a quantum "charge" pump for a Bose-Einstein condensate (BEC) in a novel bipartite magnetic lattice, whose bands are characterized by non-trivial...

Depletion-Driven Crystallization of Cubic Colloids Sedimented on a Surface

May 19, 2016

Author(s)

Harold W. Hatch, William P. Krekelberg, Steven D Hudson, Vincent K. Shen

Cubic colloids, sedimented on a surface and immersed in a solution of depletant molecules, were modeled with a family of shapes which smoothly varies from...

Interaction driven exotic quantum phases in spin-orbit coupled lattice spin¿1 bosons

May 19, 2016

Author(s)

Ian B. Spielman, Jedediah Pixley, Stefan Natu, Sankar Das Sarma

We study the interplay between large-spin, spin-orbit coupling, and superfluidity for bosons in a two dimensional optical lattice, focusing on the spin-1 spin...

Visualizing edge states with an atomic Bose gas in the quantum Hall regime

May 19, 2016

Author(s)

Ian B. Spielman, Ben Stuhl, Hsin I Lu, Lauren M. Aycock, Dina Genkina

We engineered a two-dimensional magnetic lattice in an elongated strip geometry, with effective per-plaquette flux $\approx4/3$ times the flux quanta. We imaged...

Low Frequency Radio Wave Detection of Electrically Active Defects in Dielectrics

May 19, 2016

Author(s)

Yaw S. Obeng, Chukwudi A. Okoro, Pavel Kabos, Rhonda R. Franklin, Papa K. Amoah

In this paper, we discuss the use of low frequency (up to 300 MHz) radio waves (RF) to detect and characterize electrical defects present in the dielectrics of...

Characterization of Buried Interfaces with Scanning Probe Microscopes

May 19, 2016

Author(s)

Joseph J. Kopanski, Lin You, Jungjoon Ahn, Yaw S. Obeng

Scanning probe microscopes (SPMs) have some capability to image sub-surface structure, including the details of buried interfaces. This paper describes the...

Relation between miscibility and solvent quality in solutions of polymers solvated in mixed solvents

May 19, 2016

Author(s)

Jack F. Douglas, Jacek Dudowicz, Karl Freed

A recently developed Flory-Huggins type theory for the competitive solvation of a polymer B by two small-molecule liquids A and C is utilized to examine the...

On various nonlinearity measures for boolean functions

May 19, 2016

Author(s)

Joan Boyar, Magnus G. Find, Rene Peralta

A necessary condition for the security of cryptographic functions is to be "sufficiently distant" from linear, and cryptographers have proposed several measures...

Bilateral Key Comparison SIM.T-K6.5 on Humidity Standards in the Dew/Frost-Point Temperature Range from –30 °C TO +20 °C

May 18, 2016

Author(s)

Christopher W. Meyer, Adrian Solano

A Regional Metrology Organization (RMO) Key Comparison of dew/frost point temperatures was carried out by the National Institute of Standards and Technology...

Approaching the quantum limit for plasmonics: linear atomic chains

May 18, 2016

Author(s)

Garnett W. Bryant

Optical excitations in atomic scale materials can be strongly mixed, having contributions from both single-particle transitions and collective response. This...

Ion trap mobility spectrometry nuisance alarm threshold analysis for illicit narcotics based on environmental background and a ROC-curve approach

May 18, 2016

Author(s)

Thomas Forbes, Marcela N. Najarro

The discriminative potential of an ion trap mobility spectrometer (ITMS) for trace detection of illicit narcotics relative to environmental background was...

Baromagnetic Effect in Antiperovskite Mn₃Ga_0.95N_0.94 by Neutron Powder Diffraction Analysis

May 18, 2016

Author(s)

Kewen Shi, Ying Sun, Jun Yan, Sihao Deng, Lei Wang, Hui Wu, Pengwei Hu, Huiqing Lu, Muhammad Imran Malik, Qingzhen Huang, Cong Wang

Hydration-Induced Spin-Glass State in a Frustrated Na-Mn-O Triangular Lattice

May 18, 2016

Author(s)

Ioanna Bakaimi, Rosaria Brescia, Craig Brown, Alexander A. Tsirlin, Mark A. Green, Alexandros Lappas

Birnessite compounds are stable across a wide range of compositions that produces a remarkable diversity in their physical, electrochemical and functional...

Antioxidant Cerium Oxide Nanoparticles in Biology and Medicine

May 17, 2016

Author(s)

Bryant Nelson, Monique Johnson, Marlon L. Walker, Kathryn R. Riley, Christopher Sims

Previously, catalytic cerium oxide nanoparticles (CNPs, nanoceria, CeO2-x NPs) have been widely utilized for chemical mechanical planarization in the...

State of the Field: Extreme Precision Radial Velocities

May 17, 2016

Author(s)

Debra A. Fischer, Guillem Anglada-Escude, Pamela Arriagada, Roman V. Baluev, Jacob L. Bean, Lars A. Buchhave, Abhijit K. Chakraborty, Scott Diddams, Gabor Furesz, B. S. Gaudi, Philip C. Gregory, Frank Grundahl, Guillaume Hebrard, David W. Hogg, Andrew W. Howard, Colby A. Jurgenson, David W. Latham, Greg Laughlin, Thomas J. Loredo, Suvrath Mahadevan, Tyler M. McCracken, Mario R. Perez, David F. Phillips, P Plavchan, Lisa Prato, Andreas Quirrenbach, Paul Robertson, David Sawyer, Jason D. Eastman, Pedro Figueira, Eric B. Ford, Daniel Foreman-Mackey, Paul Fournier, John A. Johnson, Christophe Lovis, Francesco Pepe, Francesco Pepe, Ansgar Reiners, Nuno C. Santos, Damien Segransan, Alessandro Sozzetti, Thorsten Carroll, Francois Bouchy, Paul Jorden, Tilo Steinmetz, Xavier Dumusque, Artie P. Hatzes, Enrique Herrero, Michael Endl, Andrew Szentgyorgyi

The Second Workshop on Extreme Precision Radial Velocities defined circa 2015 the state of the art Doppler precision and identified the critical path challenges...