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Journals

Effective Anisotropy Gradient in Pressure Graded [Co/Pd] Multilayers

February 14, 2015

Author(s)

Brian J. Kirby, P. K. Greene, Brian B. Maranville, J. E. Davis, Kai Liu

A vertically graded anisotropy profile has been proposed as an optimized balance of low coercivity and thermal stability for multilayers used in magnetic media...

In situ observation of the spatial distribution of crystalline phases during pressure-induced transformations of indented silicon thin films

February 14, 2015

Author(s)

Yvonne B. Gerbig, Chris A. Michaels, Robert F. Cook

Indentation-induced phase transformation processes were studied by in situ Raman imaging of the deformed contact region of silicon, employing a Raman...

Fourier and Gegenbauer expansions for a fundamental solution of Laplace's equation in hyperspherical geometry

February 14, 2015

Author(s)

Howard S. Cohl, Rebekah M. Palmer

For a fundamental solution of Laplace's equation on the R-radius d-dimensional hypersphere, we compute the azimuthal Fourier coefficients in closed form in two...

Frequency Modulated Charge Pumping with Extremely High Gate Leakage

February 13, 2015

Author(s)

Jason T. Ryan, Jibin Zou, Jason P. Campbell, Richard Southwick, Kin P. Cheung, Anthony Oates, Rue Huang

Charge pumping (CP) has proven itself as one of the most utilitarian methods to quantify defects in metal-oxide-semiconductor devices. In the presence of low to...

Randomized methods for rank-deficient linear systems

February 13, 2015

Author(s)

Josef Sifuentes, Zydrunas Gimbutas, Leslie Greengard

We present a simple, accurate method for solving consistent, rank-deficient linear systems, with or without additional rank-completing constraints. Such...

An Improved Index of Image Quality for Task-Based Performance of CT Iterative Reconstruction across Three Commercial Implementations

February 13, 2015

Author(s)

Olav Christianson, Joseph Chen, Zhitong Yang, Ganesh Saiprasad, Alden A. Dima, James J. Filliben, Adele Peskin, Eliot L. Siegel, Ehsan Samei

Temperature-dependent structure of Tb-doped magnetite nanoparticles

February 13, 2015

Author(s)

Katherine P. Rice, Stephen E. Russek, Roy H. Geiss, Justin Shaw, Robert J. Usselman, Eric R. Evarts, Thomas J. Silva, Hans Nembach, Elke Arenholz, Yves U. Idzerda

High quality 5 nm cubic Tb-doped magnetite nanoparticles have been synthesized by a modified wet-chemical method to investigate tailoring of magnetic properties...

Recommended Practices for the use of Spinning Rotor Gauges in Inter-laboratory Comparisons

February 12, 2015

Author(s)

James A. Fedchak, Karl Jousten, Kenta Arai, Janez Setina

The spinning rotor gauge (SRG) is a common transfer standard in key comparisons (KCs) and other intercomparisons for pressures in the range of 1.0 × 10-4 Pa to...

Near-Field Asymmetries in Plasmonic Resonators

February 12, 2015

Author(s)

Vladimir Aksyuk, Basudev Lahiri, Glenn Holland, Andrea Centrone

Surface-enhanced infrared absorption (SEIRA) spectroscopy exploits the locally enhanced field surrounding plasmonic metamaterials to increase the sensitivity of...

Effects of wafer noise on the detection of 20 nm defects using optical volumetric inspection

February 11, 2015

Author(s)

Bryan M. Barnes, Francois R. Goasmat, Martin Y. Sohn, Hui Zhou, Andras Vladar, Richard M. Silver

Patterning imperfections in semiconductor device fabrication may either be noncritical [e.g., line edge roughness (LER)] or critical, such as defects that...

Fast Strain Wave Induced Magnetization Changes in Long Cobalt Bars: Domain Motion versus Coherent Rotation

February 11, 2015

Author(s)

S. Davis, Julie Borchers, Brian B. Maranville, S. Adenwalla

A fast (88 MHz) traveling strain wave on a piezoelectric substrate is shown to rapidly change the magnetization direction in 40 micron wide Co bars with an...

Highly efficient generation of single-mode photon pairs from a crystalline whispering-gallery-mode resonator source

February 11, 2015

Author(s)

Michael Fortsch, Gerhard Schunk, Josef Furst, Dmitry Strekalov, Thomas Gerrits, Martin Stevens, Florian Sedlmeir, Harald G. Schwefel, Gerd Leuchs, Christoph Marquardt

We report on the highly-efficient generation of narrow-band pair-photons in one single spatiotemporal mode using parametric down-conversion in a crystalline...

Giant Negative Thermal Expansion in Bonded MnCoGe-Based Compounds with Ni₂In-Type Hexagonal Structure

February 11, 2015

Author(s)

Ying-Ying Zhao, Feng-Xia Hu, Li-Fu Bao, Jing Wang, Hui Wu, Qingzhen Huang, Rong-Rong Wu, Yao Liu, Fei-Ran Shen, Hao Kuang, Ming Zhang, Wen-Liang Zuo, Xin-Qi Zheng, Ji-Rong Sun, Bao-Gen Shen

MnCoGe-based compounds undergo a large negative thermal expansion (NTE) during the martensitic structural transition from Ni 2In-type hexagonal to TiNiSi-type...

Graph-based analysis of nonreciprocity in coupled-mode systems

February 10, 2015

Author(s)

Leonardo M. Ranzani, Jose A. Aumentado

In this work we derive the general conditions for obtaining nonreciprocity in multi-mode parametrically- coupled systems. The results can be applied to a broad...

Attosecond timing in optical-to-electrical conversion

February 10, 2015

Author(s)

Frederick N. Baynes, Franklyn J. Quinlan, Tara M. Fortier, Qiugui Zhou, Andreas Beling, Joe C. Campbell, Scott A. Diddams

The most frequency-stable sources of electromagnetic radiation are produced optically, and optical frequency combs provide the means for high fidelity frequency...

Reducing Block Copolymer Interfacial Widths through Polymer Additives

February 10, 2015

Author(s)

Daniel F. Sunday, Regis J. Kline

There is a need to design new materials to achieve smaller pitches and reduced interfacial widths for use in the nanopatterning of block copolymers (BCPs). One...

Understanding the Decreased Segmental Dynamics of Supported Thin Polymer Films Reported by Incoherent Neutron Scattering

February 10, 2015

Author(s)

Changhuai Ye, Clinton G. Wiener, Madhu Sudan Tyagi, David Uhrig, Sara Orski, Christopher Soles, Bryan D. Vogt, David S. Simmons

Incoherent neutron scattering (INS) has commonly reported a suppression of segmental dynamics for supported thin polymer films as thickness is decreased, which...

Neutron Inelastic Scattering Measurements of Low-Energy Phonons in the Multiferroic BiFeO₃

February 10, 2015

Author(s)

John A. Schneeloch, Zhijun Xu, Jinsheng Wen, Peter M. Gehring, Christopher Stock, M. Matsuda, B. Winn, Genda Gu, S. M. Shapiro, R. J. Birgeneau, T. Ushiyama, Y. Yanagisawa, Y. Tomioka, T. Ito, Guangyong Xu

We present neutron inelastic scattering measurements of the low-energy phonons in single crystal BiFeO3. The dispersions of the three acoustic phonon modes (LA...

Inferring and Propagating Kinetic Parameter Uncertainty for Condensed Phase Burning Models

February 9, 2015

Author(s)

Morgan C. Bruns

Kinetic parameters for serial pyrolysis reactions were calibrated from thermo- gravimetric analysis (TGA) data using Bayesian inference via Markov Chain Monte...

Generalizations of generating functions for higher continuous hypergeometric orthogonal polynomials in the Askey scheme

February 9, 2015

Author(s)

Howard S. Cohl, Hans Volkmer, Michael Baeder

We use connection relations and series rearrangement to generalize generating functions for several higher continuous orthogonal polynomials in the Askey scheme...

Optical atomic clocks

February 9, 2015

Author(s)

Andrew D. Ludlow, Martin M. Boyd, Jun Ye, E. Peik, P. O. Schmidt

Optical atomic clocks represent the state-of-the-art in the frontier of modern measurement science. In this article we provide a detailed review on the...

Restoration of firearm serial numbers with electron backscatter diffraction (EBSD)

February 9, 2015

Author(s)

Ryan White, Robert Keller

Firearm serial numbers are a critical identifying mark, and restoration of destroyed serial numbers is often crucial for prosecution of a criminal case...

Decision-Theoretic Issues in Heterogeneity Variance Estimation

February 8, 2015

Author(s)

Andrew L. Rukhin

In a random-effects setting of meta-analysis the between-study variance estimation is studied from the decision-theoretic point of view. The problem concerns...

Structural and Optical Properties of Disc-in-Wire InGaN/GaN LEDs

February 6, 2015

Author(s)

Scott A. Wight, Babak Nikoobakht

This study aims to examine the role of the microstructure and optical properties of InGaN/GaN nanowire LED structures on Si (111) having different nanowire...

Scanning localized magnetic fields in microfluidic device using single spin in nanodiamond

February 5, 2015

Author(s)

Jacob M. Taylor, K. Lim, Chad Ropp, Benjamin Shapiro, Edo Waks

We demonstrate localized magnetometry using a single nitrogen vacancy (NV) center in a microfluidic device. Our approach can manipulate magnetic objects in...

A summary of the Planck constant measurements using a watt balance with a superconducting solenoid at NIST

February 5, 2015

Author(s)

Stephan Schlamminger, Richard L. Steiner, Darine El Haddad, David B. Newell, Frank C. Seifert, Leon S. Chao, Ruimin Liu, Edwin R. Williams

Researchers at the National Institute of Standards and Technology have been using a watt balance, NIST-3, to measure the Planck constant h for over ten years...

In situ SEM Study of Lithium Intercalation in individual V2O5 Nanowires

February 5, 2015

Author(s)

Evgheni Strelcov, Joshua Cothren, Donovan Leonard, Albina Y. Borisevich, Andrei Kolmakov

Progress in rational engineering of Li-ion batteries requires better understanding of the electrochemical processes and accompanying transformations in the...

Understanding the blue color in antique mosaic mirrored glass from the Temple of the Emerald Buddha, Thailand

February 4, 2015

Author(s)

Bruce D. Ravel, Wantana Klysubun, Christoph Hauzenberger, Prapong Klysubun, Yuying Huang, Weeraya Wongtepa, Panidtha Sombunchoo

Two samples of the blue glass produced in the middle 19th century from the Temple of the Emerald Buddha in Bangkok, Thailand, were studied in order to...

New Insights into Subsurface Imaging of Carbon Nanotubes in Polymer Composites via Scanning Electron Microscopy

February 4, 2015

Author(s)

Minhua Zhao, Bin Ming, Jae-Woo Kim, Luke J. Gibbons, Xiaohong Gu, Tinh Nguyen, Cheol Park, Peter T. Lillehei, John S. Villarrubia, Andras Vladar, James A. Liddle

Despite many studies of subsurface imaging of carbon nanotube (CNT)-polymer composites via scanning electron microscopy (SEM), significant controversy exists...

C60 Chain Phases on ZnPc/Ag(111) Surfaces: Pattern Formation Driven by Competing Intermolecular Interactions

February 4, 2015

Author(s)

Steven W. Robey, W. Jin, D. B. Dougherty, W. G. Cullen, J. E. Reutt-Robey, J. Weeks, Q. Liu

Serpentine chain C60 phases were observed in scanning tunneling microscopy (STM) images of C60 layers on ZnPc or pentacene covered Ag(111) and Au(111) surfaces...

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