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NIST Authors in Bold

Displaying 26 - 50 of 390

Status of Mass Metrology at NIST in 2000

January 1, 2000
Author(s)
Zeina J. Kubarych
This paper summarizes the activities in mass metrology at NIST. It includes a description of the facilities and the procedures used in the dissemination of the mass unit. This paper also discusses the research efforts to understand and characterize the

Superconducting phase diagram in BixNi1-x thin films: the effects of Bi stoichiometry on superconductivity

July 25, 2024
Author(s)
Jihun Park, Jarryd Horn, Dylan Kirsch, Rohit Pant, Hyeok Yoon, Sungha Baek, suchismita sarker, Apurva Mehta, Xiaohang Zhang, Seunghun Lee, Richard Greene, Johnpierre Paglione, Ichrio Takeuchi
… included, with the maximum Tc (= 4.2 K) observed at x ≈ 0.79. A correlation analysis of structural, electrical, and … effect is dominant in the mild doping regime (0.74 ≤ x ≤ 0.79), while impurity scattering becomes more pronounced at …

Study of the Reactions of OH with HCl, HBr, and HI between 298 K and 460 K.

November 24, 2020
Author(s)
Vladimir L. Orkin, Victor Khamaganov, Igor Larin
The reactions between OH radicals and hydrogen halides (HCl, HBr, HI) have been studied between 298 K to 460 K by using a discharge flow – electron paramagnetic resonance technique. The rate constants at room temperature were found to be kHCl(298 K) = (7.9

Physical Degradation Of Polymeric Coating Surfaces Using Atomic Force Microscopy

November 1, 2001
Author(s)
Mark R. VanLandingham, M Giraud, Tinh Nguyen, Walter E. Byrd, Jonathan W. Martin
Atomic force microscopy (AFM) and Fourier Transform Infrared (FTIR) spectroscopy were used to monitor physical and chemical changes, respectively, in acrylic melamine coatings caused by exposure to a 50 C, 70 % relative humidity environment with and

Details of the Magnetization Reversal in Patterned Exchange-biased and Unbiased Thin Films

November 1, 2014
Author(s)
Robert D. Shull, Y. P. Kabanov, Andrew P. Chen, Cindi L. Dennis, V S. Gornakov, Valerian I. Nikitenko
New features of the magnetization reversal of a patterned bilayer in the form of a square mesh consisting of 16 um wide intersecting stripes of Ni(sub79)Fe(sub21) (30 nm) exchange-coupled with IrMn (10 um) on top were revealed via use of the advanced

Effect of Aluminum Flake Orientation on Coating Appearance

November 1, 2001
Author(s)
Li Piin Sung, Maria E. Nadal, M E. McKnight, Egon Marx, R Dutruc-Rosset, B Laurenti
The orientation of platelet-like pigments in coatings is affected by the processing conditions resulting in appearance variations of the final product. A set of aluminum-flake pigmented coatings having different flake orientations was pre-pared using

Nanoscale Hygromechanical Behavior of Lignin

September 22, 2018
Author(s)
Kristen M. Hess, Jason Killgore, Wil Srubar
… trend reaching a maximum moisture content of & 17% at & 79% relative humidity (RH). Second, 3D nanomechanical … trend reaching a maximum moisture content of & 17% at & 79% relative humidity (RH). Second, 3D nanomechanical …

Micromagnetics Simulation of Asymmetric Pseudo-Spin Valve Dots

January 1, 2002
Author(s)
N Dao, C A. Ross, F J. Castano, Michael J. Donahue, S L. Whittenburg
We present our recent simulation results for Ni79Fe21 (5 nm)/Cu (3 nm)/Co (4nm) pseudo-spin valves. These simulations have been conducted on several different aspect ratios of rectangular dots. Distinct switches of the two magnetic layers were observed. At

Structural and Dynamical Behaviors of Fast Ionic Conducting Potassium nido -(Carba)borates

August 21, 2025
Author(s)
Mads B. Amdisen, Hui Wu, Mikael S. Andersson, Mirjana Dimitrievska, Wei Zhou, Torben R. Jensen, Craig Brown, Juscelino Leao, Terrence J. Udovic
Solid-state batteries are one of the most recent iterations of electrochemical energy storage, and the technology can potentially provide safer and more-energy-dense batteries. The metal closo- and nido-(carba)borates show promise as versatile solid

Detection of l-C3H+ in Sgr B2(N) and Sgr B2(OH) and Refinement of its Spectroscopic Constants via the Publicly Available PRIMOS Survey and the Barry E. Turner Legacy Survey

September 1, 2013
Author(s)
Francis J. Lovas, Brett A. McGuire, P. B. Carroll, Ryan A. Loomis, Geoffery A. Blake, Jan M. Hollis, Phillip R. Jewell, Anthony J. Remijan
… survey. Also presented here are observations of the J = 6 - 5 and J = 7 - 6 transitions in emission towards Sgr B2(N) and Sgr … l-C3H+ of 10.1 K and 1.7 x 10**13 cm**-2 in Sgr B2(N) and 79.3 K and 1.5 x 10**13 cm**-2 in Sgr B2(OH). We discuss the …

Phases of a 2D Bose Gas in an Optical Lattice

September 9, 2010
Author(s)
Karina K. Jimenez Garcia, Yu-Ju Lin, James V. Porto, Ian B. Spielman
… trapped systems introduced by Rigol et. al. (Phys. Rev. A 79, 053605 (2009)). …

Determination of the Scattering Lengths of 39 K from 1 u Photoassociation Lineshapes

December 1, 1999
Author(s)
Carl J. Williams, Eite Tiesinga, Paul S. Julienne, H Wang, W C. Stwalley, P L. Gould
We report threshold scattering properties for 39K(f = 1) atoms obtained from analysis of experimental photoassociation spectra of the purely long-range 39K 21 u state. The existence of hyperfine structure in the excited K 2 1 u state and a knowledge of the
Displaying 26 - 50 of 390
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