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NIST Authors in Bold

Displaying 1 - 25 of 3359

Microwave Behavior of polymer bonded Iron oxide nanoparticles

November 1, 2012
Author(s)
Pavel Kabos, A Caprile, Coisson Marco, F Fiorillo, O M. Manu, E. S. Olivetti, M. A. Olariu, Pasquale Massimo, V. A. Scarlatache
Samples composed of a polymer matrix were loaded with different fractions from 0 to 30% of Fe oxide magnetic nanoparticles with an average size ranging from 50 to 25 nm. The permittivity and permeability of the composites were determined upon a very wide

Identifications of extreme ultraviolet spectra of Br-like to Ni-like neodymium ions using an electronbeam ion trap

April 30, 2021
Author(s)
C. Suzuki, Dipti Goyal, Y. Yang, A. Gall, Roshani Silwal, S. Sanders, Aung S. Naing, Joseph N. Tan, Endre A. Takacs, Yuri Ralchenko
… Charge-resolved extreme ultraviolet spectra of open N-shell neodymium (Nd) ions have been recorded in an electron beam … highly charged ions, neodymium, EBIT, EUV spectroscopy, collisional-radiative … of extreme ultraviolet spectra of Br-like to Ni-like neodymium ions using an electronbeam ion trap …

Environmental and Economic Benefits of Harvesting Machine for Magnet-to-Magnet Recycling

December 27, 2024
Author(s)
Jesus Perez-Cardona, Nehika Mathur, Sidi Deng, Miha Zakotnik, Catalina Oana Tudor, John Sutherland
… magnets in the United States. The results show that the magnet-to-magnet recycling route has the lowest footprint. A … Hard Disk Drives, Harvesting Machine, Magnet-to-Magnet Recycling, Techno-Economic Assessment, Life-Cycle … and Economic Benefits of Harvesting Machine for Magnet-to-Magnet Recycling …

Manipulation of magnetic particles by patterned arrays of magnetic spin-valve traps

December 20, 2006
Author(s)
Elizabeth Mirowksi, John M. Moreland, Stephen E. Russek, Michael J. Donahue
… A novel magnetic for microfluidic manipulation of magnetic particles is discussed. The particles are confined by an array of magnetic spin valves with bistable ferromagnetic "ON" and … Journal of Magnetism and Magnetic Materials … magnetic traps, magnetic tweezers, microfluidics, single …

Solution Synthesis of NdTe3 Magnetic Nanosheets

July 4, 2024
Author(s)
Joel Swanson, Salah El Jamal, Tyler Hartman, Orlando Stewart, Priscilla Glaser, Adam Biacchi, DaVonne Henry, Amy Liu, Sarah Stoll
… variable temperature Raman scattering. Interestingly, the magnetic properties were distinct for each nanomaterial, with … Solution Synthesis of NdTe3 Magnetic Nanosheets …

Anomalous Magnetic Aftereffect of a Frozen Magnetic Fluid

January 1, 2004
Author(s)
S Taketomi, R V. Drew, Robert D. Shull
… A very stably dispersed magnetic fluid (MF) was zero-field-cooled from room temperature of 5 K followed by the application of a magnetic field of 2.86 MA/m for 300 seconds. After the field … played an important role. We propose a model wherein the magnetic colloids from closed magnetic flux circuits by …

Modeling of Magnetization and Demagnetization in Magnetic Regenerative Refrigeration

July 2, 2004
Author(s)
F Shir, Edward Della Torre, Lawrence H. Bennett, C Mavriplis, Robert D. Shull
… A time-dependent model of magnetization and demagnetization temperature profile is … and variable-field magnet parameters. Test results of a magnetic refrigeration test bed operating at room temperature … simulate optimum operating conditions and duty cycle of a magnetic regenerative refrigeration. The effects of the …

On-wafer Magnetic Resonance of Magnetite Nanoparticles

May 11, 2015
Author(s)
Charles A. Little, Stephen E. Russek, James C. Booth, Pavel Kabos, Robert J. Usselman
… Magnetic resonance measurements of ferumoxytol and TEMPO were … and results showed similar line shapes. On-wafer magnetic resonance using integrated microfluidics and … Journal of Magnetism and Magnetic Materials … magnetic nanoparticles, magnetite, magnetic resonance …

Optimization of spin-valve parameters for magnetic bead trapping and manipulation

February 6, 2010
Author(s)
Wendy R. Altman, John M. Moreland, Stephen E. Russek, Victor M. Bright
… 1 υm x 8 υm SV switched with either an external applied magnetic field or a local magnetic field generated by an integrated write wire (current … to be -18 mT. The low switching fields and the large magnetic moment of the SV trap along with our observation of …

Surface magnetic canting in a nonuniform film

January 1, 2004
Author(s)
M G. Pini, A Retlori, David P. Pappas, A. V. Anisimov, Alexander Popov
… The analytical criterion for the existence of surface magnetic canting, previously obtained by Popov and Pappas, is … Journal of Magnetism and Magnetic Materials … magnetic thin films, spin canting, surface magnetism … Surface magnetic canting in a nonuniform film …

Flexible Software for Rigorous Simulations of Magnetic Particle Imaging Systems

March 21, 2022
Author(s)
Klaus Natorf Quelhas, Mark-Alexander Henn, Thinh Bui, Hunter Wages, Weston L. Tew, Solomon I. Woods
… Modeling of Magnetic Particle Imaging (MPI) systems allows for developing … the comparison of the simulated signals against real-life Magnetic Particle Spectroscopy (MPS) measurements. In … International Workshop on Magnetic Particle Imaging … Magnetic Particle Imaging, MPI, Magnetic nanoparticles, …

Magnetic structure of magnetoelectric multiferroic HoFeWO6

February 1, 2022
Author(s)
C. Dhital, Rebecca Dally, D. Pham, T. Keen, Qiang Zhang, P. Siwakoti, R. Nepal, R. Jin, R. Rai
… The polar magnetic oxide, HoFeWO6, is synthesized, and its crystal structure, magnetic structure, and thermodynamic properties are … at TN = 17 K is accompanied by a significant change in magnetic entropy with a value of ≈ 5 J kg−1 K−1 in a 70 kOe … Journal of Magnetism and Magnetic Materials …

Spin Nomenclature for Semiconductors and Magnetic Metals

June 1, 2004
Author(s)
B Jonker, A Hanbicki, Daniel T. Pierce, Mark D. Stiles
… The different conventions used in the semiconductor and magnetic metals communities can cause confusion in the … is based on the orientation of the electron spin, while in magnetic metals it is based on the orientation of the moment. … field of spintronics, where both semiconductors and magnetic metals are important, some commonly used terms …

Anisotropy of Magnetization Reversal and Magnetoresistance in Square Arrays of Permalloy Nano-Rings

October 1, 2006
Author(s)
A Goncharov, A Zhukov, V Metlushko, G Bordignon, H Fangohr, C de Groot, John Unguris, Willard C. Uhlig, G Karapetrov, B Ilic, P A. de Groot
… Magnetization reversal mechanisms and the impact of magnetization direction are studied in square arrays of … transport techniques. Keywords: magnetic nano-structures; magnetization reversal; magnetoresistance; nano-rings Return … magnetic nano-structures, magnetization reversal, magnetoresistance, nano-rings …

Exchange Coupling in Magnetic Multilayers Grown on Iron Whiskers

August 20, 1999
Author(s)
John Unguris, Robert Celotta, D Tulchinsky, Daniel T. Pierce
… Meaningful tests of theoretical predictions of magnetic multilayer properties require the fabrication of … to this ideal standard. We have investigated the growth, magnetic structure, and exchange coupling of Fe/(Ag, Au, Cr, … Journal of Magnetism and Magnetic Materials …

Structural and Magnetic Properties of Electrodeposited Co/Cu Multilayers

March 1, 1999
Author(s)
M Shima, L Salamanca-Riba, Thomas P. Moffat, Robert D. McMichael
… on Si(0 0 1) substrates covered with Cu seed layers. Magnetic hysteresis loops for lms with x 2 ML have sigmoidal … Journal of Magnetism and Magnetic Materials … magnetic properties … Structural and Magnetic Properties of Electrodeposited Co/Cu Multilayers …

Ultrafast element-specific magnetization Dynamics of complex magnetic materials on a table-top

December 21, 2012
Author(s)
Thomas J. Silva, Justin M. Shaw, Hans T. Nembach, Chan La-O-Vorakiat, Henry C. Kapteyn, Margaret M. Murnane, Stefan Mathias, Roman Adam, Patrik Grychtol, Martin Aeschlimann, Claus M. Schneider, Emrah Turgut, Dennis Rudolf
… We review recent progress in femtosecond magnetization dynamics probed by extreme ultraviolet pulses … capability - on a table-top - for the measurement of magnetization dynamics in complex multi-sublattice magnets and multilayer magnetic structures. We show that this newly introduced …

Investigating the Harmonic Dependence of MPI Resolution

March 19, 2023
Author(s)
Mark-Alexander Henn, Thinh Bui, Solomon I. Woods
In this work we investigate how the MPI resolution changes as a function of signal harmonics. Based on a simulation study that models a lock-in measurement of the point spread function we apply our findings to actual measurement data obtained from NIST's

Units for Magnetic Quantities

September 28, 2021
Author(s)
Ronald B. Goldfarb
… charge. A direct consequence is that the value of the magnetic constant, the permeability of vacuum, is no longer … of 10 and factors of 4π. The effect on magnetism and magnetic measurements is more philosophical than practical. … Magnetic Measurement Techniques for Materials Characterization …

Simultaneous measurement of surface and bulk vector magnetization dynamics in thin Ni-Fe films

February 1, 2002
Author(s)
Matthew Pufall, Thomas J. Silva
… The dynamics of the surface and 'bulk' magnetization vectors of a Ni-Fe thin film were measured … Films of 50, 250, and 400 nm thickness were measured. The magnetization dynamics of the surface and 'bulk' in response … from the incident magnetic field at these thicknesses. The magnetization angle also showed both a large, fast (≥1 ns) …
Displaying 1 - 25 of 3359
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