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Journals

A Self-Attenuating Superconducting Transmission Line for Use as a Microwave Power Limiter

June 1, 2003

Author(s)

James Booth, David A. Rudman, Ronald H. Ono

We have designed, fabricated, and tested a microwave power limiter based on high temperature superconductor thin film technology. The signal limiter takes the...

Influence of Impedance Mismatch Effects on Measurements of Unloaded Q Factors of Transmission Mode Dielectric Resonators

June 1, 2003

Author(s)

Kenneth Leong, James Booth, Sang Y. Lee

Precise measurements of the surface resistance of high temperature superconducting thin films using transmission mode dielectric resonators requires accurate...

Banishing Quasiparticles From Josephson-Junction Qubits: Why and How To Do It

June 1, 2003

Author(s)

Kristine Lang, Sae Woo Nam, Joe Aumentado, John M. Martinis, C Urbina

Current-biased Josephson junctions are prime candidates for the implementation of quantum bits; however, a present limitation is their coherence time. In this...

Microwave Surface Impedance and Nonlinear Properties of MgB₂ Films

June 1, 2003

Author(s)

James Booth, Sang Y. Lee, Kenneth Leong, J. H. Lee, J. Lim, H. N. Lee, S. H. Moon, B. Oh

We have measured the temperature dependence of the microwave surface impedance and the nonlinear response of high-quality MgB 2 films on c-cut sapphire at...

Stacked SNS Josephson Junction Arrays for Quantum Voltage Standards

June 1, 2003

Author(s)

Paul Dresselhaus, Yonuk Chong, J. Plantenberg, Samuel Benz

NIST is using and developing superconductor-normal metal-superconductor (SNS) Josephson arrays for both programmable DC and AC voltage standards. Increasing the...

Critical Current Control and Microwave-Induced Characteristics of (NbN/TiN_x)_n/NbN Stacked Junction Arrays

June 1, 2003

Author(s)

Mayumi Ishizaki, Hirotake Yamamori, A. Shoji, Samuel Benz, Paul Dresselhaus

Stacked double and triple Josephson junctions with NbN electrodes and TiN x barriers were fabricated for the next generation 10 V programmable Josephson voltage...

Operation of a NbN-Based Programmable Josephson Voltage Standard Chip with a Compact Refrigeration System

June 1, 2003

Author(s)

A. Shoji, Hirotake Yamamori, Mayumi Ishizaki, Samuel Benz, Paul Dresselhaus

A refrigeration system was designed and constructed for realizing a liquid-He-free programmable Josephson voltage standard. The system is equipped with a two...

4K Cryocooler Implementation of a DC Programmable Voltage Standard

June 1, 2003

Author(s)

Charles J. Burroughs, Robert J. Webber, Paul Dresselhaus, Samuel Benz

NIST and Hypres, Inc. have been collaborating to develop a 1 Volt DC programmable Josephson voltage standard (PJVS) that operates on a closed-cycle refrigerator...

Virtual Environment for Manipulating Microscopic Particles with Optical Tweezer

June 1, 2003

Author(s)

Yong-Gu Lee, Kevin W. Lyons, Thomas W. LeBrun

In this paper, we use virtual reality techniques to define an intuitive interface to a nanoscale manipulation device. This device utilizes optical methods to...

Crystallographic-Orientation-Dependent Dissolution Behavior of Sapphire in Anorthite Liquid Containing Chromia

June 1, 2003

Author(s)

J K. Park, D H. Kim, H Y. Lee, J Blendell, C A. Handwerker

Sapphire single crystals were imbedded in anorthite powders containing Cr 2O 3 and then heat-treated at 1600 degrees C. The resultant morphologies of sapphire...

Comparative Studies of MgB₂/Mg Nano-Composites and Press-Sintered MgB₂ Pellets

June 1, 2003

Author(s)

Q Li, L Wu, Y Zhu, A R. Moodenbaugh, G Gu, M Suenaga, Z X. Ye, Daniel A. Fischer

We present our studies of superconducting and microstructural properties of bulk MgB 2/Mg nano-composites and press-sintered MgB 2. TEM investigation revealed...

Localized Ferromagnetic Resonance in Inhomogeneous Thin Films

June 1, 2003

Author(s)

Robert McMichael, A Kunz, D J. Twisselmann

The effect of sample inhomogeneity on the ferromagnetic resonance line width is determined by diagonalization of a spin wave Hamiltonian for ferromagnetic thin...

Transmission Measurements in Wedge-Shaped Absorbing Samples: An Experiment for Observing Negative Refraction

June 1, 2003

Author(s)

M Sanz, A Papageorgopoulos, William F. Egelhoff Jr., M Nieto-Vesperinas, N Garcia

We report experiments of light transmissivity at wavelengths: 532 and 400 nm, through an Au film with a wedge shape. Our results mimic the negative refraction...

Kinetic Pathway of the Bilayered-Micelle to Perforated-Lamellae Transition

June 1, 2003

Author(s)

Haonan Wang, M P. Nieh, Erik K. Hobbie, Charles J. Glinka, J Katsaras

Near-edge x-ray absorption fine structure (NEXAFS) spectroscopy was used to meausre simultaneously the relaxation rates of polystyrene (PS) molecules at the...

Interpreting the Signal From a Localized Fluorescence Sensor: A Study By Angle Resolved-XPS and Dynamic SIMS

June 1, 2003

Author(s)

D L. Woerdeman, W Ou, Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, Richard~undefined~undefined~undefined~undefined~undefined Parnas

Angle-resolved X-ray Photoelectron Spectroscopy (XPS) and Dynamic Secondary Ion Mass Spectroscopy (DSIMS) experiments were conducted to assess the interactions...

Probing Hydrogen Bond Potential Surfaces for Out-of-Plane Geometries: Near-infared Combination Band Torsional (Ņ₆) Spectroscopy in (HCI)₂

June 1, 2003

Author(s)

M Farnik, S Davis, David Nesbitt

High resolution near IR spectra of jet cooled (HCL) 2 are obtained in the 3000 cm -1 to 2070 cm -1 combination band region corresponding to simultaneous...

Inter- and Intergenerational Transmission of a Human Mitochondrial DNA Heteroplasmy Among 13 Maternally-Related Individuals and Differences Between and Within Tissues in Two Family Members

June 1, 2003

Author(s)

Koji Sekiguchi, K Kasai, Barbara C. Levin

The transmission of a C16,291C/T heteroplasmy in the HV1 region of human mitochondrial DNA (mtDNA) was examined in buccal cells from 13 maternally-related...

Fabricating NIS tunnel junctions on single crystal superconducting substrate by a lithographic process

June 1, 2003

Author(s)

Anna Clark, Marcel L. van den Berg, Joel Ullom

We present a novel design for a solid-state microrefrigerator using Normal-Insulator-Superconductor (NIS) tunnel junctions. Cooling of the normal electrode is...

Noise amplification during supercontinuum generation in microstructure fiber

June 1, 2003

Author(s)

Nathan R. Newbury, Brian Washburn, Kristan L. Corwin, R Windeler

Supercontinua generated by femtosecond pulses launched in microstructure fiber can exhibit significant low-frequency (

Volumetric Contraction and Methacrylate Conversion in Photo-polymerized Amorphous Calcium Phosphate/Methacrylate Composites

June 1, 2003

Author(s)

Drago Skrtic, J W. Stansbury, Joseph M. Antonucci

Because of its relatively high solubility in aqueous media and its rapid transformation to hydroxyapatite, amorphous calcium phosphate (ACP) has been utilized...

Thermodynamic Properties of 1-Butyl-3-Methylimidazolium Hexafluorophosphate in the Ideal Gas State

June 1, 2003

Author(s)

Y Paulechka, Gennady J. Kabo, Andrey V. Blokhin, O A. Vydrov, Joe W. Magee, Michael D. Frenkel

Thermodynamic functions for 1-butyl-3-methylimidazolium hexafluorophosphate ([C(4)mim][PF6]) are reported in a range of temperatures from (5 to 550) K, based on...

Estimating the Electrical Conductivity of Alkaline Cementitious Pore Solutions

June 1, 2003

Author(s)

Kenneth A. Snyder, X Feng

A method is proposed for estimating the electrical conductivity of cementitious pore solutions. The method is based on an equation that is a function of the...

Standard Reference Material for Her2 Testing: Report of a National Institute of Standards and Technology-Sponsored Consensus Workshop

June 1, 2003

Author(s)

M E. Hammond, Peter E. Barker, S Taube, S Gutman

A workshop was sponsored by National Institute of Standards and Technology (NIST) Cancer Diagnosis Program of National Cancer Institute (CDP NCI), Food and Drug...

Simulation of Cup-Burner Flames in Microgravity

June 1, 2003

Author(s)

V Katta, F Takahashi, Gregory T. Linteris

The extinction process of cup-burner flames under normal-gravity conditions were previously studied. As the low-speed diffusion flames behave differently in...

Two Aspects of Thin Film Analysis: Boron Profile and Scattering Length Density Profile

June 1, 2003

Author(s)

Heather H. Chen-Mayer, George P. Lamaze, Kevin Coakley, Sushil K. Satija

Probe Segregation and T-g Determination of a Supported Ultra-Thin Polystyrene Film Studied by X-Ray, Neutron Reflectivity, and SIMS

June 1, 2003

Author(s)

Christopher C. White, Wen-Li Wu, Y Pu, M Rafallovich, J Sokolov

Selective deuteration combined with X-ray and neutron reflectivity has been used to determine the extent of probe segregation to an interface in ultra-thin...

Transverse Compressive Stress Effect in Y-Ba-Cu-O Coatings on Biaxially Textured Ni and Ni-5at.%W Substrates

June 1, 2003

Author(s)

Najib Cheggour, John (Jack) W. Ekin, Cameron C. Clickner, D. T. Verebelyi, C. L. H. Thieme, Ron Feenstra, P Goyal, D F. Paranthaman

Electromechanical properties of yttrium-barium-copper-oxide (YBCO) coatings on both pure Ni and Ni-5at.%W alloy rolling-assisted, biaxially-textured substrates...

Specific Antibody-DNA Interaction: A Novel Strategy for Tight DNA Recognition

May 27, 2003

Author(s)

S M. Di Pietro, J M. Centeno, M L. Cerutti, M F. Lodeiro, D U. Ferreiro, L G. Alonso, Frederick P. Schwarz, F Goldbaum, G de Prat-Gay

Taking advantage of the extreme stability of a protein-DNA complex, we obtained highly specific monoclonal antibodies against a predetermined palindromic double...

ThermoML - An XML-Based Approach for Storage and Exchange of Experimental and Critically Evaluated Thermophysical and Thermochemical Property Data 2. Uncertainties

May 26, 2003

Author(s)

Robert D. Chirico, Michael D. Frenkel, Vladimir Diky, K N. Marsh, R C. Wilhoit

ThermoML is an XML-based approach for storage and exhange of experimental and critically evaluated thermophysical and thermochemical property data. Extensions...

Gold-Black Coatings for Freestanding Pyroelectric Detectors

May 23, 2003

Author(s)

John H. Lehman, Evangelos Theocharous, George P. Eppeldauer, Chris Pannell

We describe the process of depositing gold-black on thin, freestanding pyroelectric detector substrates and compare this with previous work documented in the...

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