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Journals

Influence of source-drain electric field on mobility and charge transport in organic field-effect transistors

August 21, 2007

Author(s)

Behrang Hamadani, R J. Kline, Iain McCulloch, Martin Heeney, Curt A. Richter, David J. Gundlach

We report on a strong field-dependent mobility in OFETs fabricated by using poly(2,5-bis(3-alkylthiophene-2-yl)thieno[3,2-b]thiophene) (pBTTT-C14) as the active...

Current status of transport properties of hydrogen

August 21, 2007

Author(s)

Jacob W. Leachman, Bryce Jacobson, Steven Penoncello, Marcia L. Huber

This paper contains an analysis of transport properties of hydrogen, particularly thermal conductivity and viscosity, which are needed for many applications in...

Common Reversal Mechanisms and Correlation Between Transient Domain States and Field Sweep Rate in Patterned Permalloy Structures

August 20, 2007

Author(s)

June W. Lau, M Beleggia, Y Zhu

Complicated domain configurations generated during the magnetization reversal of Permalloy elements patterned in various shapes are the results of a...

High Effeciency Fast Scintillators for the Development of Optical Soft X-Ray Arrays for Laboratory Plasma Diagnostics

August 20, 2007

Author(s)

L F. Delgado-Aparicio, R Vero, D Stutman, M Finkenthal, K Tritz, G Suliman, H W. Moos, R Kaita, R Majeski, B Stratton, L Roquemore, D Johnson, Charles Tarrio

Scintillator-based optical soft x-ray (OSXR) arrays may in the near future, replace the conventional diode arrays used for plasma imaging, tomographic...

The water-oxygen dimer: first-principles calculation of an extrapolated potential energy surface and second virial coefficients.

August 20, 2007

Author(s)

Allan H. Harvey, Richard J. Wheatley

The Systematic Intermolecular Potential Extrapolation Routine (SIMPER) is applied to the water-oxygen complex to obtain a five-dimensional potential energy...

Current Status of Thermodynamic Properties of Hydrogen

August 17, 2007

Author(s)

Bryce Jacobson, Jacob W. Leachman, Steven Penoncello, Eric Lemmon

This paper presents a survey of the thermodynamic properties of normal hydrogen and parahydrogen with comparisons of properties calculated using the standard...

Two-Phonon Infrared Spectra of Si and Ge: Calculating and Assigning Features

August 16, 2007

Author(s)

Eric L. Shirley, Hadley Lawler

Third-order density-functional perturbation theory yields the terahertz/far-infrared absorption spectra for silicon and germanium, including all two-phonon...

Accommodation of Transformation Strains in Transverse Multiferroic Nanostructures CoFe₂O_4-PbTiO₃

August 16, 2007

Author(s)

Igor Levin, Julia Slutsker, J Li, Z Tan, Alexander L. Roytburd

Variable-temperature X-ray diffraction was used to investigate the internal strains that arise from a ferroelectric phase transition in self-assembled...

Spinor Dynamics in an Antiferromagnetic Spin-1 Condensate

August 16, 2007

Author(s)

A T. Black, Eduardo Gomez, Lincoln Turner, Sebastian Jung, Paul D. Lett

We observed coherent spin oscillations in an antiferromagnetic spin-1 Bose-Einstein condensate of sodium. The variation of the spin oscillations with magnetic...

A Study of Comparability in AFLP Profiling Using a Simple Model System

August 15, 2007

Author(s)

Lina Partis, M J. Burns, Koichi Chiba, Ph Corbisier, Marcia J. Holden, J. Wang, Qing Y. Liu, Tomoya Okunishi, Sang-Ryoul Park, Maxim Vonsky, K R. Emslie

A simple AFLP model, using the relatively small bacteriophage lambda genome, was developed to test the reproducibility of this technique in an international...

An Electrical Method for Measuring Fatigue and Tensile Properties of Thin Films on Substrates

August 15, 2007

Author(s)

Robert Keller, Nicholas Barbosa, Roy H. Geiss, David T. Read

A novel approach for measuring thermal fatigue lifetime and ultimate strength of patterned thin films on substrates is presented. The method is based on...

Demonstration of high-performance chip-scale magnetic shields

August 14, 2007

Author(s)

Elizabeth A. Donley, Eleanor Hodby, Leo W. Hollberg, John E. Kitching

We have designed and tested a set of five miniature nested magnetic shields constructed of high-permeability material, with volumes ranging from 0.01 to 2.5 cm...

Relaxation Behavior of Polymer Structures Fabricated by Nanoimprint Lithography

August 14, 2007

Author(s)

Yifu Ding, Hyun Wook Ro, Thomas A. Germer, Jack F. Douglas, Brian C. Okerberg, Alamgir Karim, Christopher L. Soles

We study the decay of the imprinted polystyrene (PS) patterns under thermal annealing using light diffraction. The first order diffraction intensity from the...

Selectable Resistance-Area Product by Dilute Highly Charged Ion Irradiation

August 13, 2007

Author(s)

Joshua M. Pomeroy, Holger Grube, A C. Perrella, John D. Gillaspy

In order to provide high performance read heads for future hard drive densities, considerable effort worldwide has been invested in developing techniques for...

Instability of Flatband Voltage in HfO2 Gate Stack Structures under Reducing/Oxidizing Annealing Conditions

August 13, 2007

Author(s)

K Ohmori, P Ahmet, M Yoshitake, T Chikyow, K Shiraishi, K Yamabe, H Watanabe, Y Akasaka, Kao-Shuo Chang, Martin L. Green, K Yamada

We have applied a combinatorial approach to fabricate work function (WF) tuned Pt-W alloy films and used the films as metal electrodes for HfO2/SiO2/Si...

Optical Lattice Polarization Effects on Magnetically Induced Atomic Clock Transitions

August 10, 2007

Author(s)

A. V. Taichenachev, V. I. Yudin, Christopher W. Oates

We derive the frequency shift for a forbidden optical transition $J$=0$\to$$J$=0 caused by the simultaneous action of an elliptically polarized lattice field...

Controlled Protein Release From High-Strength Calcium Phosphate Cement-Chitosan Composites

August 9, 2007

Author(s)

Michael Weir, Hockin D. Xu

Calcium phosphate cement (CPC) can conform to complex cavity shapes and set in situ to form bioresorbable hydroxyapatite. The aim of this study was to develop a...

Spectroscopic Determination of Phase in Tetragonally Strained Ba_0.5Sr_0.5TiO₃ Films at Room Temperature

August 9, 2007

Author(s)

L M B Alldredge, Joseph Woicik, W Chang, S W. Kirchoefer, J M. Pond

Sputter-deposited Ba0.5Sr0.5TiO3 films on MgO(001) substrates with either in-plane (c a) tetragonal lattice distortions were characterized by polarization...

Nanoscale measurements of Poisson's ratio with contact-resonance atomic force microscopy

August 9, 2007

Author(s)

Donna C. Hurley, J Turner

We describe contact-resonance atomic force microscopy (AFM) methods to quantitatively measure Poisson's ratio v or shear modulus G at the same time as Young's...

Coupling Nanowire Chemiresistors With Microhotplate Platforms for Advanced Gas Sensing

August 6, 2007

Author(s)

Douglas C. Meier, Stephen Semancik, Bradley Button, Eugene Strelcov, Andrei Kilmakov

Recent advances in nanotechnology have yielded new materials and structures that offer great potential for improving sensitivity, selectivity and stability of...

Accommodation of Transformation Strains in Transverse Multiferroic Nanostructures CoFe2O4-PbTiO3

August 6, 2007

Author(s)

Julia Slutsker, Jianhua Li, Zhuopeng Tan, Alexander L. Roytburd

Correlated photon-pair generation in reverse-proton-exchange PPLN waveguides with integrated mode demultiplexer at 10 GHz clock

August 6, 2007

Author(s)

Qiang Zhang, Xiuping Xie, Hiroki Takesue, Sae Woo Nam, Carsten Langrock, M. M. Fejer, Yoshihisa Yamamoto

We report 10-ps correlated photon pair generation in periodically-poled reverse-proton-exchange lithium niobate waveguides with integrated mode demultiplexer at...

Classical Radionuclidic Calorimetry

August 2, 2007

Author(s)

Ronald Colle

This brief survey summarizes the principles and practice of classical isothermal microcalorimetry for the primary standardization of the activity of...

Permanent-Magnet-Free Stabilization and Sensitivity Tailoring of Magneto-resistive Field Sensors

August 2, 2007

Author(s)

Sean Halloran, Fabio C. da Silva, Hamid Z. Fardi, David P. Pappas

In this work, we have exploited the coupling across a ruthenium spacer between a ferromagnetic layer and an antiferromagnetic layer to stabilize the...

Permanent-Magnet-Free Stabilization and Sensitivity Tailoring of Magneto-resistive Field Sensors

August 2, 2007

Author(s)

Sean Halloran, Fabio C. da Silva, Hamid Z. Fardi, David P. Pappas

In this work, we have exploited the coupling across a ruthenium spacer between a ferromagnetic layer and an antiferromagnetic layer to stabilize the...

Interactions of Dispersive Shock Waves

August 2, 2007

Author(s)

Mark Hoefer, Mark J. Ablowitz

Interactions and collisions of dispersive shock waves in defocusing (repulsive) nonlinear Schrodinger-type systems are investigated analytically and numerically...

Theta-Like Specimens for Measuring Mechanical Properties at the Small-Scale: Effects of Non-Ideal Loading

August 1, 2007

Author(s)

David L. Henann, L F. Ma

Confidence Through Comparing Vector Network Analyzer Measurements - The ARFTG Measurement Comparison Program

August 1, 2007

Author(s)

Ronald A. Ginley

This paper describes the ARFTG scattering parameter Measurement Comparison Program (MCP) which is supported by NIST. The ARFTG MCP is designed specifically to...

Key nonlinear measurement events

August 1, 2007

Author(s)

Catherine A. Remley, Dominique Schreurs

In this article, we describe two engineer-friendly events - the Automatic RF Techniques Group (ARFTG) Nonlinear Measurements Workshop and the Nonlinear Vector...

Texture and Phase Analysis of a Ca3Co4O9/Si (100) Thermoelectric Film

August 1, 2007

Author(s)

Winnie K. Wong-Ng, Y F. Hu, Mark D. Vaudin, B He, Makoto Otani, N D. Lowhorn, Q Li

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