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Displaying 126 - 150 of 3360

Strain-assisted magnetization reversal in Co/Ni multilayers with perpendicular magnetic anisotropy

June 14, 2016
Author(s)
Daniel B. Gopman, Cindi L. Dennis, Andrew P. Chen, Yury Y. Iunin, Peter Finkel, Margo Staruch, Robert D. Shull
… Multifunctional materials composed of ultrathin magnetic films with perpendicular magnetic anisotropy combined with ferroelectric substrates … of Co/Ni multilayered films with tunable saturation magnetization and perpendicular anisotropy grown on … magnetoelectric effects, perpendicular magnetic anisotropy, strain …

A new magnet design for future Kibble balances

April 4, 2018
Author(s)
Stephan Schlamminger, Shisong Li, Michael Stock
… We propose a new permanent magnet system for Kibble balance experiments, which combines advantages of the magnet designs invented by the National Physical Laboratory … des Poids et Mesures (BIPM). The goal of the proposed magnet system is to realize a Kibble balance magnet with zero …

Magnetic Uncertainties for Compact Kibble Balances: An Investigation

July 18, 2022
Author(s)
Shisong Li, Stephan Schlamminger
… magnet system. We describe the size dependence of three magnetic effects: the coil-inductance effect, the yoke … Kibble balance, magnetic circuit, magnet design, mass metrology … Magnetic Uncertainties for Compact Kibble Balances: An …

Limits of Storage in Magnetic Materials

December 31, 2004
Author(s)
Thomas J. Silva
… about how thermal effects limit the storage capacity of magnetic disk drives. The physics of thermal fluctuations in magnetic materials is treated in some detail, though the … anisotropy, Arrhenius-Neel, disk drives, magnetic data storage, magnetic fluctuation noise, …

Effect of Oxygen Stoichiometry on the Magnetization Profiles and Negative Magnetization in LSMO Thin Films

September 14, 2019
Author(s)
Robbyn Trappen, Alexander Grutter, Chih-Yeh Huang, Aubrey Penn, Navid Mottaghi, Saeed Yousefi, Allison Haertter, Shalini Kumari, James LeBeau, Brian Kirby, Mikel B. Holcomb
… The depth dependent magnetization in thin film oxygen stoichiometric and oxygen … The stoichiometric sample shows enhanced interfacial magnetization relative to the rest of the film. The oxygen deficient sample exhibits a reduced average magnetization from the optimized recipe. Both films show …

Magneto-Optical Indicator Film Study of the Magnetization of a Symmetric Spin Valve

September 1, 1996
Author(s)
Valerian I. Nikitenko, V S. Gornakov, L M. Dedukh, Yury P. Kabanov, A F. Khapikov, Lawrence H. Bennett, P J. Chen, Robert D. McMichael, Michael J. Donahue, L Swartzendruber, Alexander J. Shapiro, H J. Brown, William F. Egelhoff Jr.
… technique is used for direct experimental study of the magnetization reversal process in a symmetric … reversal of the free center layer proceeds by nonuniform magnetization rotation. The observed switching mechanism is … Magneto-Optical Indicator Film Study of the Magnetization of a Symmetric Spin Valve …

Kondo Effect in Magnetic Tunnel Junctions with an AIOx Tunnel Barrier

June 17, 2016
Author(s)
Chao Zheng, Robert D. Shull, Andrew P. Chen, Philip Pong
… The Kondo effect in magnetic tunnel junctions (MTJs) is a result of the spin-exchange interaction between magnetic impurities and the conduction electrons. The … evidence for the presence of the Kondo effect in the MTJs. Magnetic impurities formed at the free layer/barrier …

Intrinsic defects in perpendicularly magnetized multilayer thin films and nanostructures

October 26, 2010
Author(s)
Justin M. Shaw, Miles Olsen, June W. Lau, Michael L. Schneider, Thomas J. Silva, Olav Hellwig, Elizabeth Dobisz, Bruce D. Terris
… Intrinsic magnetic defects in perpendicularly magnetized nanostructures reduce the predictability of device … Intrinsic defects in perpendicularly magnetized multilayer thin films and nanostructures …

Magnetic Order and Competition with Superconductivity in (Ho-Er)Ni 2 B 2 C

November 20, 2020
Author(s)
Suleyman Gundogdu, J. P. Clancy, Guangyong Xu, Yang Zhao, Paul A. Dube, Tufan C. Karalar, Beong K. Cho, Jeffrey W. Lynn, M. Ramazanoglu
… The rare earth magnetic order in pure and doped Er (1−x) Ho x Ni 2 B^2^C (x … borocarbides, RNi 2 B 2 C where R = Er, Ho , are both magnetic intermetallic superconductors with the transition … temperatures ∼ 10 K. These compounds also develop magnetic order in the vicinity of this temperature. Depending …

The Permeability of Vacuum and the Revised International System of Units

December 29, 2017
Author(s)
Ronald B. Goldfarb
The International System of Units (SI) is expected to be revised such that all seven base units, including the kilogram, will be defined in terms of fixed numerical values of seven defining constants. The revised SI will include a redefinition of the

Modulation of Magnetic Properties at the Nanometer Scale in Continuously Graded Ferromagnets

February 6, 2018
Author(s)
Lorenzo Fallarino, P. Riego, Brian Kirby, Casey W. Miller
… model systems given that they exhibit easy to tune magnetic properties such as saturation magnetization M s and … in-plane c-axis orientation and thus an in-plane easy magnetic axis to suppress magnetostatic domain generation. Temperature and field-dependent magnetic depth profiles have been measured by means of …

Magnetic Properties of Zr_(9)Ni_(11)Intermetallic Compound

February 7, 2010
Author(s)
Virgil Provenzano, Robert D. Shull, Richard M. Waterstrat, Lawrence H. Bennett, Edward Della Torre, H. Seyoum
… We report on a very interesting magnetic behavior in the intermetallic compound … in magnetization versus temperature curves.  The magnetic properties are consistent with structural results … Magnetic Properties of Zr_(9)Ni_(11)Intermetallic Compound …

Unusual Magnetization Reversal in [Co/Pt]4 Multilayers With Perpendicular Anisotropy

April 21, 2006
Author(s)
X M. Cheng, Valerian I. Nikitenko, Alexander J. Shapiro, Robert D. Shull, C L. Chien
… Unusual magnetization reversal of [Co(4 )/Pt(10 )]4 multilayers with … imaging. During the first order reversal process, the magnetization first decreases, reaches a plateau, and finally … channels within the boundary of the bubble domains. The magnetization reversal behavior can be accounted for by the …

Broadband spectroscopy of thermodynamic magnetization fluctuations through a ferromagnetic spin- reorientation transition

September 21, 2018
Author(s)
a L. Balk, F Li, Ian J. Gilbert, John Unguris, N A. Sinitsyn, S A. Crooker
… to study the broadband frequency spectra of spontaneous magnetization fluctuations, or "magnetization noise", in an archetypal ferromagnetic that can … perpendicular anisotropy, the power spectrum of the magnetization noise, S(), exhibits a remarkably robust …

High-Frequency Characteristics of Metal/Native-Oxide Multilayers

September 5, 2003
Author(s)
Geoffrey S. Beach, Thomas J. Silva, F. T. Parker, A. E. Berkowitz
The high-frequency magnetization dynamics of magnetically soft Co χFe 100-χ metal/native-oxide multilayers were studied as a function of alloy composition (10 less than or equal to} χ less than or equal to} 50) using a time-domain inductive technique. The

Reversal mechanisms in perpendicular magnetic nanostructures

July 16, 2008
Author(s)
Justin M. Shaw, Stephen E. Russek, Michael J. Donahue, Thomas Thomson, Bruce Terris, Michael Schneider, Miles Olsen
… We find that the reversal mechanism in magnetic nanostructures is highly dependent on the nature and … bit patterned media, Magnetic nanostructures, magnetic reversal, nanodots … Reversal mechanisms in perpendicular magnetic nanostructures …

AC magnetometry with active stabilization and harmonic suppression for magnetic nanoparticle spectroscopy and thermometry

December 14, 2020
Author(s)
Thinh Q. Bui, Weston L. Tew, Solomon I. Woods
… Magnetic nanoparticle (MNP) thermometry based on magnetic particle spectroscopy (MPS) is explored as a … Magnetic Nanoparticles, Magnetic Particle Spectrometer, AC Magnetometry, Magnetic Nanoparticle Thermometry … with active stabilization and harmonic suppression for magnetic nanoparticle spectroscopy and thermometry …

Phase Diagram of a-RuCl 3 in an In-Plane Magnetic Field

May 31, 2017
Author(s)
J. A. Sears, Yang Zhao, Zhijun Xu, Jeffrey W. Lynn, Young-June Kim
… The low-temperature magnetic phases in the layered honeycomb lattice material … α-RuCl 3 have been studied as a function of in-plane magnetic field. In zero field this material orders … of 2 T is sufficient to suppress the population of the magnetic domain in which the zigzag chains run along the …

Novel bulk iron garnets for magneto-optic magnetic field sensing

November 1, 1994
Author(s)
M. N. Deeter, S. Milianbon, Gordon W. Day, G. Diercks, S. Samuelson
… compositions with properties specifically optimized for magnetic field sensing. Sensitivity enhancement was achieved … Proc., IEEE Trans. Magn., 6th Joint Magnetism and Magnetic Materials Intl. Mag. Conf., Albuquerque, NM, … Novel bulk iron garnets for magneto-optic magnetic field sensing …

Force transmission errors in magnetic suspension densimeters

April 2, 2007
Author(s)
Mark O. McLinden, R Kleinrahm, W Wagner
… force transmission error (FTE), including the effects of magnetic fluids, in magnetic suspension densimeters. For a two-sinker densimeter, … fluid-specific effect; this effect is correlated with the magnetic susceptibility of the fluid together with an … densimeter, density, magnetic susceptibility, magnetic suspension coupling …

Magnetic order of the iron spins in NdFeAsO

August 21, 2008
Author(s)
Ying Chen, Jeffrey Lynn, Jiying Li, G. J. Li, G. F. Chen, J. L. Luo, N. L. Wang, Pengcheng Dai, Clarnia dela Cruz, H. A. Mook
… measurements have been carried out to investigate the iron magnetic order in undoped NdOFeAs. Antiferromagnetic order is … the structural distortion observed in this material. The magnetic structure consists of chains of parallel spins that … neutron diffraction, magnetic order, magnetic phase transition, iron-based …

A Route to Quantum Magnetism

April 13, 2011
Author(s)
Ian B. Spielman
… These systems can now be used to simulate quantum magnetism. … bosons, magnetism, quantum simulation … A Route to Quantum Magnetism …
Displaying 126 - 150 of 3360
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