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Journals

Improved Interfaces and Magnetic Properties in Spin Valves Using Ni₈₀Fe₂₀ Seed Layer

March 1, 2002

Author(s)

E J. Repetski, D X. Yang, H D. Chopra, P J. Chen, William F. Egelhoff Jr.

The giant magnetoresistance (GMR) (Ni 80Fe 20)O-Co-Cu based top spin valves were studied with and without Ni 80Fe 20 as a seed layer. Microstructure examination...

Influence of Dendrimer Additives on the Dewetting of Thin Polystyrene Films

March 1, 2002

Author(s)

M E. Mackay, Y Hong, M Jeong, S Hong, T P. Russell, C J. Hawker, R Vestberg, Jack F. Douglas

A small mass concentration of poly(benzyl ether) dendrimer added to a low molecular mass polystyrene is found to inhibit the dewetting of a thin ( 50 nm)...

Beyond Flory-Huggins Theory: New Classes of Blend Miscibility Associated With Monomer Structural Asymmetry

March 1, 2002

Author(s)

J Dudowicz, Karl Freed, Jack F. Douglas

Flory-Huggins (FH) theory is restricted to polymer mixtures whose monomers are structurally identical- a situation limited to isotopic blends and computer...

Novel Fluorescence Method for Cure Monitoring of Photo-Cured Composites

March 1, 2002

Author(s)

K Komatsu, Francis W. Wang, K Nemoto

The mechanical properties of a composite resin depend greatly on the degree of its conversion. This study used a fluorescence monitoring system to investigate...

Effects of Hydrolytic Degradation on In Vitro Biocompatibility of Poly (d,l-lactic acid)

March 1, 2002

Author(s)

S Yoneda, William F. Guthrie, David S. Bright, C A. Khatri, Francis W. Wang

Objective: In order to investigate the effects of hydrolytic degradation on the biocompatibility of poly (d,l-lactic acid) [P(d,l-LA], the initial attachment...

Electronic Structure of Quantum-Dot Molecules and Solids

March 1, 2002

Author(s)

G C. Bryant, W Jaskolski

We present an empirical tight-binding theory of nanocrystal nanosystems. We use our tight-binding theory to understand the electronic states of quantum-dot...

Local Imaging of Photonic Structures: Image Contrast From Impedance Mismatch

March 1, 2002

Author(s)

A L. Campillo, Julia W. Hsu, Garnett W. Bryant

Photonic structures constructed from square arrays of air holes in Si 3N x membranes are locally imaged by near-field optical microscopy in illumination mode...

Nonlinear Phase Noise Generated in Air-Silica Microstructure Fiber and Its Effect on Carrier-Envelope Phase

March 1, 2002

Author(s)

T M. Fortier, Jun Ye, Steven T. Cundiff, R S. Windeler

We present measurements of the nonlinear phase noise that is due to amplitude to-phase conversion in air-silica microstructure fiber that is utilized to broaden...

Optical Trapping and Manipulation of Nano-Objects With an Apertureless Probe

March 1, 2002

Author(s)

P C. Chaumet, A Rahmani, M Nieto-Vesperinas

We propose a novel way to trap and manipulate nano-objects above a dielectric substrate using an apertureless near-field probe. A combination of evanescent...

Photoassociation of Sodium in a Bose-Einstein Condensate

March 1, 2002

Author(s)

C R. McKenzie, J Denschlag, H Heffner, A Browaeys, L E. de Araujo, F K. Fatemi, Kevin Jones, J E. Simsarian, D Cho, A Simoni, Eite Tiesinga, Paul S. Julienne, Kristian Helmerson, Paul D. Lett, S L. Rolston, William D. Phillips

We report on the formation of ultra-cold Na2 molecules using single-photon photoassociation of a Bose-Einstein condensate. The photoassociation rate, linewidth...

Subfemtosecond Timing Jitter Between Two Independent, Actively Synchronized Mode-Locked Lasers

March 1, 2002

Author(s)

R K. Shelton, S M. Foreman, L -. Ma, John L. Hall, H C. Kapteyn, M M. Murnane, M Notcutt, Jun Ye

With the implementation of a bandwidth servo, along with improved laser construction and associated better passive stability, we have achieved sub-femtosecond...

Radiocarbon Measurements of Black Carbon in Aerosols and Ocean Sediments

March 1, 2002

Author(s)

C A. Masiello, David L. Urban, Lloyd A. Currie

We report the optimization of dichromate-sulfuric acid oxidation for the measurement of radiocarbon in black carbon (BC). We also present comparisons of black...

In the Rough

March 1, 2002

Author(s)

Theodore V. Vorburger, Joseph Fu, N G. Orji

Surface roughness affects the function of a wide variety of engineering components, including airport runways, highways, ship hulls and mechanical parts...

Studies of Samples Having Shallow Surface Topography by the Low-Loss Electron (LLE) Method in the Scanning Electron Microscope (SEM)

March 1, 2002

Author(s)

O C. Wells, M Mcglashen-powell, Michael T. Postek, Andras Vladar

Cytonectin Expression in Alzheimer's Disease

March 1, 2002

Author(s)

S J. Anderson, Peter E. Barker, M G. Hadfield

Cytonectin is a novel 35,000 molecular weight protein that displays remarkable ion-independent adherence properties. This consigns it to a family of well-known...

The superconducting strand for the CMS solenoid conductor

March 1, 2002

Author(s)

B Cure, B Blau, D Campi, Loren F. Goodrich, I L. Horvath, F Kircher, R Liikamaa, J Sepp{umlat}al{umlat}a, R P. Smith, J Teuho, L Vieillard

The Compact Muon Solenoid (CMS) is one of the general-purpose detectors to be provided for the LHC project at CERN. The design filed of the CMS superconducting...

Reaction Kinetics of 2-Propanol Dehydration in Supercritical Water

March 1, 2002

Author(s)

V I. Anikeev, A Ermakova, Jeffrey A. Manion, Robert E. Huie

A study of the kinetics and mechanism of chemical reactions in supercritical fluids is considered. An experimental procedure was proposed for examining...

Experimental Study on Zeta Potential and Streaming Potential of Advanced Ceramic Powders

March 1, 2002

Author(s)

R Wasche, M Naito, Vincent A. Hackley

Experimental evidence has been given for the comparison of zeta potential as measured with the electrokinetic sonic amplitude (ESA) method and streaming...

Random Packings of Frictionless Particles

February 18, 2002

Author(s)

C S. O'Hern, Stephen A. Langer, A J. Liu, S R. Nagel

We study random packings of frictionless particles at T=0. The packing fraction where the pressure becomes nonzero is the same as the jamming threshold, where...

Spectroscopic Ellipsometry Characterization of High-K Dielectric HfO₂ Thin Films and the High-Temperature Annealing on Their Optical Properties

February 18, 2002

Author(s)

Yong J. Cho, Nhan Van Nguyen, Curt A. Richter, James R. Ehrstein, Byoung H. Lee, Jack C. Lee

Observation of Latent Reliability Degradation in Ultra-Thin Oxides after Heavy-Ion Irradiation

February 18, 2002

Author(s)

John S. Suehle, Bin Wang, J. F. Conley, Eric M. Vogel, Peter Roitman, C E. Weintraub, A. H. Johnston, J B. Bernstein

Constant voltage breakdown distributions of Time-Dependent-Dielectric-Breakdown (TDDB) were obtained for both non-irradiated and irradiated 3.0 and 3.2 nm thick...

Surface Characterization of Laser- Ablated Polymers Used for Microfluidics

February 15, 2002

Author(s)

D L. Pugmire, E A. Waddell, R Haasch, Michael J. Tarlov, Laurie E. Locascio

Fabrication of microfluidic devices by excimer laser ablation under different atmospheres may provide variations in polymer microchannel surface characteristics...

Handbook of Reference Data for Nondestructive Testing: Ultrasonics Chapter

February 14, 2002

Author(s)

John A. Slotwinski

The ASTM Handbook of Reference Data for Nondestructive Testing (NDT) is a collection of previously available NDT data for use by NDT practitioners. It is...

Powder Standard Reference Materials

February 13, 2002

Author(s)

James F. Kelly

The measurement of particle size distributions has become increasingly important for the testing and certification of equipment used in size analysis...

Total-Energy-Based Structure Prediction for Decagonal Al-Ni-Co

February 11, 2002

Author(s)

M Mihalkovic, I Al-Lehyani, Eric J. Cockayne, C L. Henley, N Moghadam, J A. Moriarty, Yijun Wang, M Widom

Quasicrystals are metal alloys whose noncrystallographic symmetry and lack of structural periodicity challenge methods of both experimental structure...

Direct Experimental Study of the Exchange Spring Formation Process

February 7, 2002

Author(s)

V S. Gornakov, Valerian I. Nikitenko, Alexander J. Shapiro, Robert D. Shull

Improved Thermal Stability Of Crown Ether And Imidazolium Treatments for Flame Retardant Polymer Layered-Silicate Nanocomposites

February 6, 2002

Author(s)

Jeffrey W. Gilman, Cher H. Davis, Rick D. Davis, W H. Awad, A B. Morgan, Paul C. Trulove, Hugh C. De Long, T E. Sutto, L J. Mathias, D Schiraldi

The thermal stability of the organic treatment present on a layered silicate is of utmost importance in preparing a polymer-layered silicate (clay)...

Multiscale Modeling of Point Defects and Free Surfaces in Semi-Infinite Solids

February 4, 2002

Author(s)

Vinod K. Tewary

A Green's function method is described for multiscale modeling of point defectssuch as vacancies and interstitials at the atomistic level and extended defects...

Chlorination Chemistry. 3. Ab Initio Study of the Reaction of Chlorine Atom with Allene

February 2, 2002

Author(s)

Jeffrey W. Hudgens, Carlos A. Gonzalez

Highly correlated ab initio molecular orbital calculations have been used to map out the potential energy surface of the Cl + allene reaction in the gas phase...

Determination of Planck Mean Absorption Coefficients for HBr, HCl, and HF

February 1, 2002

Author(s)

Stephen P. Fuss, Anthony P. Hamins

The Planck mean absorption coefficient has been calculated for HBr HCl, and HF over a temperature range from 300 K-2300 K using data from the 1996 edition of...

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