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Journals

Competitive Adsorption of Thiolated Polyethylene Glycol and Mercaptoproprionic acid on Gold Nanoparticles Measured by Physical Characterization Methods

May 24, 2010

Author(s)

De-Hao D. Tsai, Frank W. DelRio, Robert I. MacCuspie, Tae Joon Cho, Michael R. Zachariah, Vincent A. Hackley

Adsorption kinetics between thiolated polyethylene glycol (SH-PEG) and mercaptoproprionic acid (MPA) on gold nanoparticles (Au-NP) were studied using dynamic...

A common-view disciplined oscillator

May 24, 2010

Author(s)

Michael A. Lombardi, Aaron P. Dahlen

This paper describes a common-view disciplined oscillator (CVDO) that locks to a reference time scale through the use of common-view Global Positioning System...

Operating quantum waveguide circuits with superconducting single-photon detectors

May 24, 2010

Author(s)

C. M. Natarajan, A. Peruzzo, Shigehito Miki, Masahide Sasaki, Z. Wang, Burm Baek, Sae Woo Nam, Robert Hadfield, Jeremy L. O'Brien

Advanced quantum information science and technology (QIST) applications place exacting demands on optical components. Quantum waveguide circuits offer a route...

Temporal and Spatial Trends of Perfluorinated Compounds in Juvenile Loggerhead Sea Turtles (Caretta caretta) along the East Coast of the United States

May 21, 2010

Author(s)

Jennifer M. Lynch, John R. Kucklick, Steven O'Connell

Perfluorinated compounds (PFCs) are globally distributed persistent environmental contaminants. This study provides temporal trends as well as large-scale...

Core-shell composite of SiCN and multiwalled carbon nanotubes from Toluene dispersion

May 21, 2010

Author(s)

John H. Lehman, Katherine E. Hurst, Gurpreet Singh, Elisabeth Mansfield, John D. Perkins, Christopher L. Cromer

Carbon nanotubes are known to have high thermal conductivity, and in bulk form, a topology that could constitute the matrix of an inhomogeneous solid. Among the...

Modification of edge mode dynamics of oxidized Ni₈₀Fe₂₀ thin film edges

May 20, 2010

Author(s)

Meng Zhu, Robert D. McMichael

We use ''edge mode'' ferromagnetic resonance (FMR) to probe the magentic properties of oxidized Ni 80Fe 20 (Py) nanostripe edges. The oxidation is carried out...

CCEM.RF-K4.CL Comparison RF-Voltage measurements up to 1 GHz

May 20, 2010

Author(s)

James P. Randa, Jan P. de Vreede

We report the results of an international comparison of measurements of radio frequency voltage in the frequency range 1 MHz to 1 GHz. This comparison was...

Elastic, adhesive, and charge transport properties of a metal-molecule-metal junction: the role of molecular orientation, order, and coverage

May 20, 2010

Author(s)

Frank W. DelRio, Kristen L. Steffens, Cherno Jaye, Daniel A. Fischer, Robert F. Cook

The elastic, adhesive, and charge transport properties of a metal-molecule-metal junction are studied via conducting-probe atomic force microscopy (AFM) and...

Raman scattering by LO-phononplasmon coupled modes in Ga1¿xInxAsySb1¿y : the role of Landau damping

May 20, 2010

Author(s)

James E. Maslar, Ramon Cusco, Esther Alarcon-Llado, Luis Artus, Wilbur S. Hurst

We present a detailed investigation of the phonons and LO-phononplasmon coupled modes in the Ga1−x InxAsy Sb1−y alloy by means of Raman scattering. A...

Neutron Scattering Methodology for Absolute Measurement of Room-Temperature Hydrogen Storage Capacity and Evidence for Spillover Effect in a Pt-Doped Activated Carbon

May 20, 2010

Author(s)

Chen-Si Tsao, Yun Liu, Mingda Li, Yang Zhang, Juscelino Leao, Hua-Wen Chang, Ming-Sheng Yu, Sow-Hsin Chen

Core-Shell Magnetic Morphology of Structurally Uniform Magnetite Nanoparticles

May 19, 2010

Author(s)

Kathryn L. Krycka, R. Booth, C. Hogg, Y. Ijiri, Julie A. Borchers, WangChun Chen, Stephanie S. Watson, M. Laver, Thomas R. Gentile, L.R. Dedon, S. Harris, J. J. Rhyne, S. A. Majetich

Monitoring Photothermally Excited Nanoparticles via Multimodal Microscopy

May 19, 2010

Author(s)

Matthew L. Clarke, Shin G. Chou, Jeeseong Hwang

Generation of heat using optically excited nanoparticles can be beneficial or detrimental depending on the application. Therefore, clinically applicable studies...

Dynamic light scattering investigations of nanoparticle aggregation following a light-induced pH jump

May 19, 2010

Author(s)

Ryan Murphy, Denis Pristinski, Kalman D. Migler, Jack F. Douglas, Vivek Prabhu

We use dynamic light scattering to characterize the kinetics of nanoparticle aggregation. The aggregation process was conveniently initiated in photoacid...

SANS Investigation of Selectively Distributed Single-Walled Carbon Nanotubes in a Polymeric Lamellar Phase

May 19, 2010

Author(s)

Changwoo Doe, Hyung-Sik Jang, Steven R. Kline, Sung-Min Choi

Fabrication of highly ordered superstructures of single-walled carbon nanotubes (SWNTs) is of great interest for a wide range of potential applications. Here...

In-Plane Field Effects on the Dynamics of Domain Walls in Ultathin Co Films with Perpendicular Anisotropy

May 19, 2010

Author(s)

Y. P. Kabanov, Y. L. Iunin, Valerian I. Nikitenko, Alexander J. Shapiro, Robert D. Shull, L. Y. Zhu, C. L. Chien

We studied how the application of an in-plane field affects the asymmetries of the domain nucleation activity and domain wall velocity revealed previously in...

Certifying NIST Standard Reference Material 2389a, Amino Acids in 0.1 mol/L HCl Absolute Quantification by ID LC-MS/MS

May 18, 2010

Author(s)

Mark S. Lowenthal, David M. Bunk, Karen W. Phinney

An isotope-dilution liquid chromatography-tandem mass spectrometry (ID LC-MS/MS) reference measurement procedure was developed to accurately quantify amino acid...

Strength distribution of single-crystal silicon theta-like specimens

May 18, 2010

Author(s)

Michael S. Gaither, Frank W. DelRio, Richard S. Gates, Edwin R. Fuller, Robert F. Cook

A new test specimen has been developed for micro-scale tensile strength measurements, allowing direct assessment of surface effects on strength. Specimens were...

Effect of strain, magnetic field and field angle on the critical current density of YBa₂Cu₃O_7-δ coated conductors

May 18, 2010

Author(s)

Daniel C. van der Laan, J. F. Douglas, John (Jack) W. Ekin, Loren F. Goodrich, Theodore C. Stauffer, Cameron C. Clickner

A large, magnetic-field-dependent, reversible reduction in critical current density with axial strain in YBa 2Cu 3O 7-δ coated conductors at 75.9 K has been...

Monte Carlo / RRKM / Classical Trajectories Modeling of Collisional Excitation and Dissociation of n-Butylbenzene Ion in Multipole Collision Cells of Tandem Mass Spectrometers

May 18, 2010

Author(s)

Vadim D. Knyazev, Stephen Stein

The two-channel reaction of collision-induced dissociation (CID) of the n-butylbenzene cation under the conditions of multipole collision cells of tandem mass...

Simultaneous XAFS Measurements of Multiple Samples

May 17, 2010

Author(s)

Bruce D. Ravel, C. Scorzato, D. P. Siddons, S. D. Kelly, S. R. Bare

A four-channel ionization chamber has been designed, constructed and tested. This ionization chamber allows X-ray absorption spectra to be collected in...

Fast Quantum Algorithms for Traversing Paths of Eigenstates

May 17, 2010

Author(s)

S. Boixo, Emanuel Knill, Rolando Somma

Consider a path of non-degenerate eigenstates |psi_s>, 0 Solutions to this problem have applications ranging from quantum physics simulation to optimization...

GRADED STRUCTURES FOR ALL-CERAMIC RESTORATIONS

May 17, 2010

Author(s)

Yu Zhang, H Chai, Brian R. Lawn

One failure mode of all-ceramic crown restorations is radial cracking at the cementation surface, from occlusally-induced flexure of the stiffer crown layer on...

Investigating the Unique Properties of Cuphea Derived Biodiesel with the Advanced Distillation Curve Method

May 17, 2010

Author(s)

Tara Lovestead, Bret Windom, Thomas J. Bruno

Currently, there is a desire to extend or enhance petroleum-derived diesel fuel with biodiesel fuel. Biodiesel fuel is a renewable, biomass-derived fluid that...

Anisotropic damping of the magnetization dynamics in Fe, Ni and Co

May 17, 2010

Author(s)

Daniel Steiauf, Jonas Seib, Manfred Faehnle, Keith Gilmore, Mark D. Stiles

The Gilbert parameter alpha describing the damping of magnetization dynamics is commonly taken to be an isotropic scalar. We argue that it is a tensor, that is...

An Ultra-Stable Platform for the Study of Single-Atom Chains

May 16, 2010

Author(s)

Douglas T. Smith, Jon R. Pratt, Francesca M. Tavazza, Lyle E. Levine, Anne M. Chaka

We describe a surface probe instrument capable of sustaining single-atomic-bond junctions in the electronic quantum-conduction regime for tens of minutes, and...

Relationships between Composition and Density of Tobermorite, Jennite, and Nanoscale CaO-SiO2-H2O

May 16, 2010

Author(s)

Andrew J. Allen, Jeffrey Thomas, Hamlin M. Jennings

Relationships between composition, mass density, and atomic packing density for CaO{SiO2{H2O (C{S{H) gel, the main hydration product of ce- ment, and its...

Tailored State Preparation for Solid State Quantum Memory

May 16, 2010

Author(s)

Elizabeth A. Goldschmidt, Sergey V. Polyakov, Sarah E. Beavan, Jingyun Fan, Alan L. Migdall

We use spectral hole burning in Pr3+:Y2SiO5 in order to prepare spectral distributions of ions optimized for using such a material as a quantum memory for...

Atomistic simulation of hillock growth

May 15, 2010

Author(s)

Timofey Frolov, William J. Boettinger, Yuri Mishin

The goal of this paper is to explore mechanisms of hillock and whisker growth in stressed poly-crystalline films by molecular dynamics simulations. Our stress...

Electrodeposition of Metastable Au-Ni Alloys

May 13, 2010

Author(s)

Gery R. Stafford, E. Rouya, Ugo Bertocci, J. J. Mallett, R. Schad, M. R. Begley, R. G. Kelly, M. Reed, G. Zangari

The electrodeposition of Au-Ni alloys from near neutral, sulfite-based electrolytes derived from a commercial bath for soft gold plating is investigated. Alloy...

Measurement of the δ34S value in methionine by double spike multi-collector thermal ionization mass spectrometry using Carius tube digestion

May 12, 2010

Author(s)

Jacqueline L. Mann, William R. Kelly

Methionine is an essential amino acid and is the primary source of sulfur for humans. Using the double spike (33S-36S) multi-collector thermal ionization mass...

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