Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Journals

Critical current and linewidth reduction in spin-torque nano-oscillators by delayed self-injection

June 15, 2015

Author(s)

Guru S. Khalsa, Mark D. Stiles, Julie Grollier

Based on theoretical models, the dynamics of spin torque nano-oscillators can be substantially modified by re-injecting the emitted signal to the input of the...

Resolving the vacuum fluctuations of an optomechanical system using an artificial atom

June 15, 2015

Author(s)

Florent Q. Lecocq, John D. Teufel, Jose A. Aumentado, Raymond W. Simmonds

Heisenberg's uncertainty principle results in one of the strangest quantum behaviours: a mechanical oscillator can never truly be at rest. Even at a temperature...

High accuracy CO2 line intensities determined from theory and experiment

June 15, 2015

Author(s)

Joseph T. Hodges, Oleg L. Polyansky, Katarzyna E. Bielska, Melanie C. Ghysels, Lorenzo Lodi, N Zobov, Jonathan Tennyson

The atmospheric concentration of carbon dioxide (CO2), with its consequences for the greenhouse effect and climate change, is being closely monitored by a...

Damage Development in Cementitious Materials Exposed to MgCl2 Deicing Salt

June 15, 2015

Author(s)

Yaghoob Farnam, Andrew Wiese, Dale P. Bentz, Jeffrey M. Davis, Jason Weiss

MgCl2 is used in deicing applications due to its capability to depress freezing temperatures to a lower point than other salts like NaCl. The constituents of...

Proposed Congruent Matching Cells (CMC) Method for Ballistic Identifications and Evidence Searches*

June 15, 2015

Author(s)

Jun-Feng Song

The "correlation cells" and three-dimensional (3D) topography measurements have been proposed for establishment of the "NIST Ballistics Identification System...

Spin-scattering rates in metallic thin films measured by ferromagnetic resonance damping enhanced by spin-pumping

June 12, 2015

Author(s)

Carl T. Boone, Justin M. Shaw, Hans T. Nembach, Thomas J. Silva

We determined the spin-transport properties of Pd and Pt thin films by measuring the increase in ferromagnetic resonance damping due to spin-pumping in...

Absolute Calibration of a Variable Attenuator Using Few-Photon Pulses

June 12, 2015

Author(s)

Zachary H. Levine, Boris L. Glebov, Adam L. Pintar, Alan L. Migdall

We demonstrate the ability to calibrate a variable optical attenuator directly at the few photon level using a Superconducting Transition Edge Sensor (TES)...

On the 209Po Half-Life Error and Its Confirmation: A Critique

June 11, 2015

Author(s)

Ronald Colle, Arthur M. Colle

Collé, et al [(2007) Appl. Radiat Isot. 65, 728; (2014) J. Phys. G: Nucl. Part. Phys. 41, 105103], over the course of nearly a decade and with decay data from a...

Recent measurements of the gravitational constant as a function of time

June 11, 2015

Author(s)

Stephan Schlamminger, Jens H. Gundlach, Riley D. Newman

A recent publication (J.D. Anderson et. Al., EPL 110, 1002) found a strong correlation between the measured values of the gravitational constant G and the 5.9...

IAQ and Energy Impacts of Ventilation and Source Control in a Big Box Retail Building

June 10, 2015

Author(s)

Lisa C. Ng, Andrew K. Persily, Steven J. Emmerich

Heating, ventilating, and air conditioning (HVAC) systems in buildings are designed to provide thermally comfortable conditions and to maintain acceptable...

Thermoresponsive PNIPAM Coatings on Nanostructured Gratings for Cell Alignment and Release

June 10, 2015

Author(s)

Mikhail Zhernenkov, Rana N. Ashkar, Hao Feng, Olukemi O. Akintewe, Nathan D. Gallant, Ryan Toomey, John F. Ankner, Roger Pynn

Thermoresponsive poly(N-isopropylacrylamide) (NIPAAm) has been widely used as a surface coating to thermally control the detachment of adsorbed cells without...

Application of the Advanced Distillation Curve Method to Fuels for Advanced Combustion Engine Gasolines

June 9, 2015

Author(s)

Jessica L. Burger, Nico Schneider, Thomas J. Bruno

Abstract: Incremental but fundamental changes are currently being made to fuel composition and combustion strategies in order to diversify feed-stocks, decrease...

Rheology and Dynamics of Colloidal Superballs

June 9, 2015

Author(s)

John R. Royer, George L. Burton, Daniel L. Blair, Steven D Hudson

Recent advances in colloidal synthesis make it possible to generate a wide array of precisely controlled, non-spherical, shaped particles. However, relatively...

Gas Chromatographic Retention Indices

June 9, 2015

Author(s)

Thomas J. Bruno

The interpretation of results from chromatographic measurements can often be augmented with an appropriate mathematical treatment of the solute retention that...

Application of the Hartmann-Tran profile to analysis of H2O spectra

June 9, 2015

Author(s)

D Lisak, A. Cygan, D Bermejo, J L. Domenech, Joseph T. Hodges, Ha Tran

The Hartmann-Tran profile (HTP), which has been recently recommended as a new standard in spectroscopic databases, is used to analyze spectra of several lines...

Neutron Spin Resonance as a Probe of Superconducting Gap Anisotropy in Partially Detwinned Electron Underdoped NaFe_0.985Cod0.015^As

June 9, 2015

Author(s)

Chenglin Zhang, J. T. Park, Xingye Lu, Rong Yu, Yu Li, Wenliang Zhang, Yang Zhao, Jeffrey W. Lynn, Qimiao Si, Pengcheng Dai

We use inelastic neutron scattering (INS) to study spin excitations in detwinned NaFe 0.985Cod0.015^As which has coexisting static antiferromagnetic (AF) order...

Spectroscopic Determination of the Atomic f-Electron Symmetry Underlying Hidden Order in URu₂Si₂

June 9, 2015

Author(s)

L. Andrew Wray, Jonathan Denlinger, Shih-Wen Huang, Haowei He, Nicholas Butch, M. Brian Maple, Zahid Hussain, Yi-De Chuang

The hidden order state of URu6d2^Si 2 has been a subject of intense speculation for more than 25 years, but there is still no clear consensus on what degrees of...

Amplitude and phase-resolved nano-spectral imaging of surface phonon polaritons in hexagonal boron nitride

June 9, 2015

Author(s)

Samuel Berweger, Shi Zhiwen, Hans A. Bechtel, Sun Yinghui, Zeng Bo, Jin Chenhao, Chang Henry, Michael C. Martin, Markus B. Raschke, Feng Wang

Phonon polaritons are quasiparticles resulting from strong coupling of photons with optical phonons. Excitation and control of these quasiparticles in 2D...

Model Building: An Examination of the Pre-evacuation Period of the 2001 WTC Disaster

June 8, 2015

Author(s)

Erica D. Kuligowski

This paper presents two models developed to describe the pre-evacuation period of the 2001 WTC Disaster. The first model is a conceptual model developed from...

Quasilocal Critical Nature of Cooperative Paramagnetic Fluctuations in CaRuO₃ Metal

June 8, 2015

Author(s)

J. Gunasekera, Leland Harriger, T. Heitmann, A. Dahal, H. Knoll, D. K. Singh

We report new observation of cooperative paramagnetic fluctuations of Ru 4+ spins that coexist with the non-Fermi liquid state in CaRuO 3 perovskite below T22 K...

Theory of competitive solvation of polymers by two solvents and enthalpy-entropy compensation

June 7, 2015

Author(s)

Jack F. Douglas, Jacek Dudowicz, Karl Freed

A Flory-Huggins (FH) type theory is derived to describe the competitive equilibrium sol- vation of long chain polymers B by a pair of relatively low molar mass...

Suppression of Spin Pumping between Ni80Fe20 and Cu by a Graphene Interlayer

June 7, 2015

Author(s)

William J. Gannett, Mark W. Keller, Hans Nembach, Thomas J. Silva, Ann Chiaramonti Debay

Abstract We compare ferromagnetic resonance measurements of Py (Ni80Fe20) films sputtered onto Cu(111) with and without a graphene (Gr) interlayer grown by...

Ferromagnetic resonance measurement using stroboscopic magneto optical Kerr effect

June 7, 2015

Author(s)

Takahiro Moriyama, Seungha Yoon, Robert McMichael

We have developed a novel ferromagnetic resonance measurement technique using the magneto optical Kerr effect. The measurement technique uses microwave...

Comparison of traditional 2-AB Fluorescence LC-MS/MS and automated microscale LC-MS for the comparative glycan analysis of monoclonal antibodies

June 5, 2015

Author(s)

John E. Schiel, Michael T. Boyne, Sarah M. Rogstad

Monoclonal antibody therapeutics are a heterogeneous mixture of glycoforms. Multiple methods exist for defining the glycan composition and relative abundance of...

Empirical Gradient Threshold Technique for Automated Segmentation across Image Modalities and Cell Lines

June 5, 2015

Author(s)

Joe Chalfoun, Michael P. Majurski, Adele P. Peskin, Catherine Breen, Peter Bajcsy, Mary C. Brady

The Effect of Al Doping on the Crystal Structure and Magnetocaloric Behavior of Mn_1.2Fe_0.8P_1-xGe_x Compounds

June 5, 2015

Author(s)

D. M. Liu, H. Zhang, S.B. Wang, W.Q. Xiao, Z. L. Zhang, N. Tian, C. X. Liu, M. Yue, Qingzhen Huang, J. X. Zhang, Jeffrey W. Lynn

Topological RPdBi Half-Heusler Semimetals: a New Family of Non-Centrosymmetric Magnetic SuperconductorS

June 5, 2015

Author(s)

Yasuyuki Nakajima, Rongwei Hu, Kevin Kirshenbaum, Alex Hughes, Paul Syers, Xiangfeng Wang, Kenfeng Wang, Renxiong Wang, Shanta R. Saha, Daniel K. Pratt, Jeffrey W. Lynn, Johnpierre Paglione

We report superconductivity and magnetism in a new family of topological semimetals, the ternary half Heusler compounds RPdBi (R: rare earth). In this series...

Tunable Spin Qubit Coupling Mediated by a Multi-Electron Quantum Dot

June 4, 2015

Author(s)

Vanita Srinivasa, Haitan Xu, Jacob M. Taylor

We present an approach for entangling electron spin qubits localized on spatially separated impurity atoms or quantum dots via a multi-electron, two-level...

Fetal magnetocardiography measurements with a multichannel microfabricated atomic magnetometer array

June 3, 2015

Author(s)

Svenja A. Knappe, Orang Alem, Tilmann H. Sander, Rahul R. Mhaskar, John LeBlanc, Hari Eswaran, Uwe Steinhoff, Yoshio Okada, John E. Kitching, Lutz Trahms

Following the rapid progress in the development of atomic magnetometer technology for the measurement of magnetic fields in the femtotesla range, a successful...

Quasi-Two-Dimensional Spin and Phonon Excitations in La_1.965Ba_0.035CuO₄

June 3, 2015

Author(s)

J. J. Wagman, Daniel E. Parshall, M. B. Stone, A. T. Savici, Yang Zhao, H. A. Dabkowska, B. D. Gaulin

We present time-of-flight inelastic neutron scattering measurements of La 1.965Ba 0.035Cu) 4 (LBCO), a lightly doped member of the high temperature...

Was this page helpful?