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Journals

Correlation between in-plane grain orientation and the reversible strain effect on flux pinning in RE-Ba₂Cu₃O_7-δ coated conductors

December 16, 2011

Author(s)

Daniel C. van der Laan, Loren F. Goodrich, Fraser Douglas, R. Semerad, M Bauer

The pressure dependence of the critical temperature causes a reversible effect of strain on the critical current density and flux pinning strength in many high...

Insensitivity of Sub-Kelvin Electron-Phonon Coupling to Substrate Properties

December 16, 2011

Author(s)

Jason M. Underwood, Peter J. Lowell, Galen C. O'Neil, Joel N. Ullom

We have examined the role of the substrate on electron-phonon coupling in normal metal films of Mn-doped Al at temperatures below 1 K. Normal metal-insulator...

Development of a combinatorial characterization scheme for high-throughput investigations of hydrogen storage materials.

December 16, 2011

Author(s)

Jason Hattrick-Simpers, Z. Tan, H. Oguchi, Chun Chiu, Edwin J. Heilweil, James E. Maslar, Leonid A. Bendersky

In order to reliably increase the throughput of materials measured for hydrogen storage properties, a complete high-throughput characterization scheme has been...

Higher-order photon correlations in pulsed photonic crystal nanolasers

December 16, 2011

Author(s)

D. Elvira, X. Hachair, Varun Verma, R. Braive, G. Beaudoin, I. Robert-Philip, I. Sagnes, Burm Baek, Sae Woo Nam, E Dauler, I. Abram, Martin Stevens, A. Beveratos

We report on the higher-order photon correlations of a high-Β nanolaser under pulsed excitation at room temperature. Using a multiplexed four-element...

Spherical indentation testing of poroelastic relaxations in thin hydrogel layers

December 16, 2011

Author(s)

Edwin Chan, Yuhang Hu, Peter M. Johnson, Zhigang Suo, Christopher Stafford

In this work, we present the Poroelastic Relaxation Indentation (PRI) testing approach for quantifying the mechanical and transport properties of thin layers of...

First-Principles Calculation of the Non-Adiabatic Spin Transfer Torque in Ni and Fe

December 16, 2011

Author(s)

Keith Gilmore, Ion Garate, Allan H. MacDonald, Mark D. Stiles

The magnetization dynamics of a ferromagnet subjected to an electrical current are given by an extension of the Landau-Lifshitz-Gilbert equation that contains...

Atomistic Ensemble Modeling and Small-Angle Neutron Scattering of Intrinsically Disordered Protein Complexes: Applied to Minichromosome Maintenance Protein

December 15, 2011

Author(s)

Susan Krueger, Jae-Ho Shin, Sindhushree NMN Raghunandan, Joseph E. Curtis, Zvi Kelman

The minichromosome maintenance (MCM) proteins are thought to function as the replicative helicases in archaea and eukarya. The solution structure of the N...

The Infrared Spectrum of NN...CO+ Trapped in Solid Neon

December 15, 2011

Author(s)

Warren E. Thompson, Marilyn E. Jacox

Codeposition of a Ne:N2:CO = 200:1:1 mixture at 4.3 K with a beam of very pure neon atoms excited to their energy levels between 16.6 and 16.85 eV leads to...

Spectroscopic Characterization of Structural Isomers of Naphthalene: 1-Phenyl-1-butyn-3-ene

December 15, 2011

Author(s)

Joshua Sebree, David F. Plusquellic, Timothy Zwier

With the growing interest in the role naphthalene may play in planetary atmospheres and the interstellar medium, it is important to characterize other C10H8...

Electronic structures of lithium battery interphase compounds: comparison between inelastic x-ray scattering measurements and theory

December 13, 2011

Author(s)

Eric L. Shirley, Timothy Fister, Moritz Schmidt, Paul Fenter, Christopher Johnson, Michael Slater, Maria K. Chan

In lithium ion batteries, decomposition of the electrolyte near an electrode surface can play a crucial role in determining the devices long-term performance...

Faster recovery time of a hot-electron transition-edge sensor by use of normal metal heat-sinks

December 12, 2011

Author(s)

Brice R. Calkins, Adriana E. Lita, Anna E. Fox, Sae Woo Nam

Transition-edge sensor microcalorimeters with recovery times near 1 mu s have become highly desirable in quantum science applications as near-infrared single...

The Nature of BH4- Reorientations in Hexagonal LiBH₄

December 12, 2011

Author(s)

Kristina Verdal, Terrence J. Udovic, John J. Rush

Acceptance Diagram Calculations of the Performance of Neutron Removal Mirrors

December 11, 2011

Author(s)

John R. Copley

We have used the method of acceptance diagrams to compute the performance of low energy neutron removal mirrors or "deflectors", placed within a parallel...

Electronic Durability of Flexible Transparent Films Assembled from Type-Sorted Single-Wall Carbon Nanotubes

December 11, 2011

Author(s)

John M. Harris, Ganjigunte R. Iyer, Anna K. Bernhardt, JiYeon Huh, Jeffrey Fagan, Steven Hudson, Erik K. Hobbie

The coupling between mechanical flexibility and electronic performance is evaluated for thin films of metallic and semiconducting single-wall carbon nanotubes...

Trapped-Ion State Detection through Coherent Motion

December 9, 2011

Author(s)

Till P. Rosenband, David Hume, Chin-Wen Chou, David R. Leibrandt, Michael J. Thorpe, David J. Wineland

Coherent control of trapped atomic ions has led to several recent advances in quantum information processing 1 and precision spectroscopy 2. A basic requirement...

An 84 Pixel All-Silicon Corrugated Feedhorn for CMB Measurements

December 8, 2011

Author(s)

John P. Nibarger, James A. Beall, Daniel T. Becker, Joseph W. Britton, Hsiao-Mei Cho, Anna E. Fox, Gene C. Hilton, Johannes Hubmayr, Dale Li, Kent D. Irwin, Jeffrey L. Van Lanen, Jeff McMahon, Ki Won Yoon

Silicon platelet corrugated feedhorn for cosmic microwave background (CMB) measurements in the mm wave (130 to 170 GHz) have been developed for deployment for...

Formation of y+10 and y+11 Ions in the Collision-Induced Dissociation of Peptide Ions

December 8, 2011

Author(s)

Lisa E. Kilpatrick, Pedatsur Neta, Xiaoyu Yang, Yamil Simon, Yuxue Liang, Stephen E. Stein

Tandem mass spectra of peptide ions, acquired in shotgun proteomic studies of selected proteins, tissues, and organisms, commonly include prominent peaks that...

Evolution of the Commensurate and Incommensurate Magnetic phases of the S{/I= {3/2} Kagome Staircase Co₃V₂O₈ in a Applied Field

December 8, 2011

Author(s)

Joel Helton, Georgii L. Bychkov, Sergei N. Barilo, Nyrissa Rogado, Robert J. Cava, Jeffrey W. Lynn

Single crystal neutron diffraction studies have been performed on the S = {3/2} kagome staircase compound Co 3V 2O 8 with a magnetic field applied along the...

Role Engineering: Methods and Standards

December 8, 2011

Author(s)

Edward Coyne, Timothy Weil, D. Richard Kuhn

This article explains problems and approaches to designing permission structures for role based access control. RBAC and the RBAC standard are summarized...

Electrochemical Micromachining of NiTi Shape Memory Alloys with Ultrashort Voltage Pulses

December 8, 2011

Author(s)

Joseph Maurer, John Hudson, Steven E. Fick, Thomas P. Moffat, Gordon A. Shaw

Electrochemical micromachining (ECMM) with ultrashort voltage pulses has been used to fabricate microstructures on a NiTi shape memory alloy (SMA). Because of...

Quantum Hall effect on centimeter scale chemical vapor deposited graphene films

December 7, 2011

Author(s)

Tian T. Shen, Wei Wu, Qingkai Yu, Curt A. Richter, Randolph E. Elmquist, David B. Newell, Yong P. Chen

We report observations of well developed half integer quantum Hall effect on mono layer graphene films of 7 mm × 7 mm in size. The graphene films are grown by...

TaOx Memristive Devices with Ferromagnetic Electrodes

December 7, 2011

Author(s)

Hyuk-Jae Jang, Pragya R. Shrestha, Oleg A. Kirillov, Helmut Baumgart, Kin P. Cheung, Oana Jurchescu, Curt A. Richter

Characterization and Resistive Switching Properties of Solution-Processed HfO2, HfSiO4, and ZrSiO4 Thin Films on Rigid and Flexible Substrates

December 7, 2011

Author(s)

Joseph L. Tedesco, Walter Zheng, Oleg Kirillov, Sujitra Pookpanratana, Hyuk-Jae Jang, Premsagar P. Kavuri, Nhan Van Nguyen, Curt Richter

Quantum Spin Fluctuations in the Spin Liquid State of Tb₂Ti₂O^d7&

December 7, 2011

Author(s)

Hiroshi Takatsu, Hiroaki Kadowaki, Taku J. Sato, Yohiikazu Tabata, Jeffrey W. Lynn, Teruo Yamazaki, Kazuyuki Matsuhira

Neutron scattering experiments on a polycrystalline sample of the frustrated pyrochlore magnet Tb 2Ti 2O 7, which does not show any magnetic order down to 50 mK...

Structural and Thermoelectric properties of BaRCo4O7 (R=Dy, Ho, Er, Tm,Yb, and Lu)

December 6, 2011

Author(s)

Winnie K. Wong-Ng, Wenjie Xie, Yonggao Y. Yan, Guangyao Liu, James A. Kaduk, Evans L. Thomas, Terry M. Tritt

The structure and thermoelectric properties of a series of barium lanthanide cobaltites, BaRCo4O7 (R = Dy, Ho, Er, Tm,Yb, and Lu), which were prepared using the...

Electrical Contacts to One- and Two-Dimensional Nanomaterials

December 6, 2011

Author(s)

Francois Leonard, Albert A. Talin

Nanostructures such as carbon nanotubes, nanowires and graphene are being intensively explored for future electronic, photonic, and energy applications. In...

A Determination Study of The Cavity Emissivity of the Eutectic Fixed Points Co-C, Pt-C and Re-C

December 5, 2011

Author(s)

Leonard M. Hanssen, Yohsiro Yamada, Pieter Bloembergen, Pablo Castro, Boris Wilthan, Sergey Mekhontsev

The eutectics Co-C, Pt-C and Re-C, with phase transition temperatures of 1597 K, 2011 K, and 2747 K, respectively, are presently investigated for their...

Development and Certification of a Standard Reference Material for Vitamin D Metabolites in Human Serum

December 5, 2011

Author(s)

Karen Phinney, Mary Bedner, Susan Tai, Veronica V. Vamathevan, Lane Sander, Katherine Sharpless, Stephen Wise

The National Institute of Standards and Technology (NIST), in collaboration with the National Institutes of Health's Office of Dietary Supplements (NIH-ODS) has...

Reversible effect of strain on transport critical current in Bi₂Sr₂CaCu₂O_8+x superconducting wires: A modified descriptive strain model

December 5, 2011

Author(s)

Najib Cheggour, Xifeng Lu, T G. Holesinger, Theodore C. Stauffer, J Jiang, Loren F. Goodrich

A reversible strain effect on transport critical current I c was found in Bi 2Sr 2CaCu 2O 8+x (Bi-2212) high-temperature superconducting round wires. I c showed...

Mechanism for puddle formation in graphene

December 5, 2011

Author(s)

Shaffique Adam, Suyong S. Jung, Nikolai N. Klimov, Nikolai B. Zhitenev, Joseph A. Stroscio, Mark D. Stiles

Close to charge neutrality, graphene's energy landscape is highly inhomogeneous, forming a sea of electron-like and hole-like puddles that determine the...

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