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Displaying 1276 - 1300 of 3361

Numerical Micromagnetics: Finite Difference Methods

September 1, 2007
Author(s)
J. Miltat, Michael J. Donahue
Micromagnetics is based on the one hand on a continuum approximation of exchange interactions, including boundary conditions, on the other hand on Maxwell equations in the non-propagative (static) limit for the evaluation of the demagnetizing field. The

Penning traps with unitary architecture for storage of highly charged ions

February 15, 2012
Author(s)
Joseph N. Tan, Samuel M. Brewer, Nicholas D. Guise
… for extracting highly charged ions. We present a two-magnet architecture with radial access to facilitate the use … and stored to study the confinement properties of a one-magnet trap and a two-magnet trap. Design considerations and some initial test …

Modification of Spin-Ice Physics in Ho 2 Ti 2 O 7 Thin Films

August 16, 2019
Author(s)
Kevin Barry, Biwen Zhang, Naween Anand, Yan Xin, Arturas Vailionis, Jennifer Neu, Colin A. Heikes, Charis Cochran, Haidong Zhou, Yiming Qiu, William D. Ratcliff, Theo Siegrist, Christianne Beekman
We report on a study of the structural and magnetic properties of strained Ho 2Ti 2O 7 thin films. Structural characterization via synchrotron x-ray diffraction confirms good crystallinity of our films and shows a critical thickness slightly below 50 nm

Doping-Induced Redistribution of Magnetic Spectral Weight in the Substituted Hexaborides Ce 1-x La x B 6 and Ce 1-x Nd x B 6

February 9, 2018
Author(s)
S. E. Nikitin, P. Y. Portnichenko, A. V. Dukhnenko, N.Yu. Shitsevalova, V. B. Filipov, Yiming Qiu, Jose Rodriguez Rivera, J. Ollivier, D. S. Inosov
… diffuse neutron scattering. We observe a redistribution of magnetic spectral weight across the Brillouin zone, which we … side of the phase diagram, however, dilution of the magnetic moments prevents the formation of a similar … the role of Fermi surface geometry in stabilizing magnetic order in rare-earth hexaborides. …

Impact of Growth Kinetics on the Interface Morphology and Magnetization in La 1/3 Sr 2/3 FeO 3 /La 2/3 Sr 1/3 MnO 3 Heterostructures

April 17, 2020
Author(s)
M. Waschk, A. Sarkar, J. Barthel, J. Voigt, S. Schroder, P. Zakalek, M. Schmitz, Brian Kirby, S. Putter, J. Schubert, T. Bruckel
… in LSMO/LSFO (g.o., a) with almost 50% reduction in magnetization at the interface and showing no exchange … Impact of Growth Kinetics on the Interface Morphology and Magnetization in La 1/3 Sr 2/3 FeO 3 /La 2/3 Sr 1/3 MnO 3 …

Annealing Temperature Dependences of Magnetization Reversal in Exchange Biased Bilayers

October 12, 2021
Author(s)
C G. Lee, V S. Gornakov, B H. Koo, K S. Shin, Robert McMichael, Andrew P. Chen, William F. Egelhoff Jr.
… post- annealing crystal structure leads to changes in the magnetization reversal process. This effect is greater in the … Annealing Temperature Dependences of Magnetization Reversal in Exchange Biased Bilayers …

Anisotropic Effect of a Magnetic Field on the Neutron Spin Resonance in FeSe

April 16, 2020
Author(s)
Tong Chen, Youzhe Chen, David W. Tam, Bin Gao, Yiming Qiu, Astrid Schneidewind, Igor Radelytskyi, Karel Prokes, Songxue Chi, Masaaki Matsuda, Collin L. Broholm, Pengcheng Dai
… use inelastic neutron scattering to study the effect of a magnetic field on the neutron spin resonance (Er = 3.6 meV) … Anisotropic Effect of a Magnetic Field on the Neutron Spin Resonance in FeSe …

Wideband current and magnetic field sensors based on iron garnets

January 1, 1993
Author(s)
M. N. Deeter, Kent B. Rochford, Allen Rose, Gordon W. Day
… on the Faraday effect can be configured to measure either magnetic fields or electric currents. Such sensors can be … Wideband current and magnetic field sensors based on iron garnets …

Spherical-Wave Characterization of Interior and Exterior Sources

August 1, 1998
Author(s)
David A. Hill
This paper presents the theoretical basis for spherical, near-field scanning in the general case where radiating sources exist both inside and outside the measurement region. The fields are expanded in terms of outgoing spherical waves (due to interior

Temporal pattern recognition with delayed feedback spin-torque nano-oscillators

August 23, 2019
Author(s)
Mathieu Riou, Jacob Torrejon, B. Garitaine, Flavio Abreu Araujo, Paolo Bortolotti, Vincent Cros, Sumito Tsunegi, K. Yakushiji, Akio Fukushima, Hitoshi Kubota, Shinji Yuasa, Damien Querlioz, Mark D. Stiles, Julie Grollier
The recent demonstration of neuromorphic computing with spin-torque nano-oscillators has opened a path to energy efficient data processing. The success of this demonstration hinged on the intrinsic short-term memory of the oscillators. In this study, we

New Intermetallics YbAu2In4 and Yb2Au3In5

October 20, 2010
Author(s)
Peter C. Sebastian, James Salvador, Joshua B. Martin, Mercouri G. Kanatzidis
The intermetallic compounds YbAu2In4 and Yb2Au3In5 were obtained as single crystals in high yield from reactions run in liquid indium. Single crystal X-ray diffraction data of YbAu2In4 showed that it crystallizes as a new structure type in the monoclinic

Ultralow power artificial synapses using nanotextured magnetic Josephson junctions

January 28, 2018
Author(s)
Michael L. Schneider, Christine A. Donnelly, Stephen E. Russek, Burm Baek, Matthew R. Pufall, Peter F. Hopkins, Paul D. Dresselhaus, Samuel P. Benz, William H. Rippard
… computing, Artificial Synapse, Neuronal Network Dynamics, Magnetic Josephson Junction … Ultralow power artificial synapses using nanotextured magnetic Josephson junctions …

Functional Constraints and the Design of a New Watt Balance

September 30, 2013
Author(s)
Leon S. Chao, Stephan Schlamminger, Jon R. Pratt
… constraints driving the design of the new permanent-magnet driven watt balance (NIST-4) outline the variables and … mass, kilogram, wheel, flexure, SI unit, redefine, magnet …

A New Effective Method for Thermal Annealing of Magnetic Tunnel Junctions in Air With Ru, Au, Al 2 O 3 as Protective Overlayers

October 16, 2008
Author(s)
Philip Pong, Moshe Schmoueli, F Li, William F. Egelhoff Jr.
… enhance greatly the tunneling magnetoresistance (TMR) of magnetic tunnel junctions (MTJs). MTJ annealing is … thermocouple with feedback control, permanent magnets for magnetic field, and a sample holder. The influence of thermal … A New Effective Method for Thermal Annealing of Magnetic Tunnel Junctions in Air With Ru, Au, Al 2 O 3 as …

Magnetic Resonance Properties of Gd(III)-Bound Lipid-Coated Microbubbles and their Cavitation Fragments

October 30, 2012
Author(s)
Jameel Feshitan, Michael A. Boss, Mark Borden
… microbubbles are potentially useful theranostic agents for magnetic resonance imaging guided focused ultrasound surgery … region of the polyethylene-glycol (PEG) brush. Nuclear magnetic resonance (NMR) at 1.5 T was used to measure the … exchange enhancement by lipid membrane relaxation and magnetic field inhomogeneity imposed by the gas/liquid …

NIST MISE EN PRATIQUE FOR THE REALIZATION AND DISSEMINATION OF THE REDEFINED KILOGRAM

October 1, 2016
Author(s)
Patrick J. Abbott, Eric Benck, Corey A. Stambaugh, Edward C. Mulhern, Zeina J. Kubarych
The SI unit of mass, the kilogram, is scheduled to be redefined in 2018 as part of a broader redefinition of the SI in terms of fundamental constants. The kilogram will be realized in terms of the Planck constant within a vacuum environment. This

A gamma and X-ray dector for cryogenic, high magnetic field applications

July 13, 2012
Author(s)
Thomas R. Gentile, R L. Cooper, R. Alarcon, M J. Bales, E J. Beise, H Breuer, J. Byrne, T E. Chupp, Kevin J. Coakley, Maynard S. Dewey, Changbo Fu, Hans P. Mumm, Jeffrey S. Nico, B. O'Neill, K. Pulliam, Alan Keith Thompson, F E. Wietfeldt
… A gamma and X-ray dector for cryogenic, high magnetic field applications …
Displaying 1276 - 1300 of 3361
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