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Displaying 726 - 750 of 3361

Magnetic structure and anisotropy of [Co/Pd]_5/NiFe multilayers

January 9, 2015
Author(s)
Larysa Tryputen, Feng Guo, Liu Frank, T. N. Anh Nguyen, Majid Mohseni, Sunjae Chung, Yeyu Fang, Johan Akerman, Robert McMichael, Caroline Ross
… The magnetization behavior, magnetic anisotropy and domain congurations of Co/Pd multilayers with perpendicular magnetic anisotropy capped with permalloy is investigated using magnetometry, magnetic force microscopy and ferromagnetic resonance. The … Magnetic structure and anisotropy of [Co/Pd]_5/NiFe …

Analysis of the systematic force-transmission error of the magnetic-suspension coupling in single-sinker densimeters and commercial gravimetric sorption analyzers

April 23, 2019
Author(s)
Reiner Kleinrahm, Xiaoxian Yang, Mark McLinden, Markus Richter
… the sample gas. The key component of the instrument is a magnetic-suspension coupling; this coupling transmits, … gravimetric sorption analyzer, force-transmission error, magnetic-suspension coupling, tandem-sinker densimeter, … Analysis of the systematic force-transmission error of the magnetic-suspension coupling in single-sinker densimeters and …

Successive Field-Induced Transitions in BiFeO 3 Around Room Temperature

July 21, 2017
Author(s)
Shiro Kawachi, Atsushi Miyake, Toshimitsu Ito, Sachith E. Dissanayake, Masaaki Matsuda, William D. Ratcliff, Yang Zhao, Shin Miyahara, Masashi Tokunaga
The Effects of high magnetic fields applied perpendicular to the spontaneous ferroelectric polarization on single crystals of BiFeO 3 were investigated through magnetization, magnetostriction, and neutron diffraction measurements. The magnetostriction

Origin of Electric Field Induced Magnetization in Multiferroic HoMnO 3

April 7, 2010
Author(s)
Benjamin Ueland, Jeffrey W. Lynn, Mark Laver, Y. J. Choi, S.-W. Cheong
… equal} 40 K. We attribute the increase to an uncompensated magnetization arising within antiferromagnetic domain walls. … 50 K, indicating that the electric field affects the magnetization via the antiferromagnetic domain walls rather … Origin of Electric Field Induced Magnetization in Multiferroic HoMnO 3 …

GPU-accelerated parallel image reconstruction strategies for magnetic particle imaging

June 24, 2024
Author(s)
Klaus Natorf Quelhas, Mark-Alexander Henn, Ricardo Farias, Weston L. Tew, Solomon I. Woods
… Image reconstruction is a fundamental step in Magnetic Particle Imaging (MPI). Since it was developed, … Magnetic particle imaging, MPI, image reconstruction, … parallel image reconstruction strategies for magnetic particle imaging …

A Design-of-Experiments Approach to FEM Uncertainty Analysis for Optimizing Magnetic Resonance Imaging RF Coil Design

October 10, 2014
Author(s)
Jeffrey T. Fong, Nathanael A. Heckert, James J. Filliben, Li Ma, Karl F. Stupic, Kathryn E. Keenan, Stephen E. Russek
… Using the RF module of COMSOL, we compute the magnetic flux density norm (BN) profiles for frequencies in … experiments, design optimization, finite element method, magnetic resonance imaging. … Approach to FEM Uncertainty Analysis for Optimizing Magnetic Resonance Imaging RF Coil Design …

Nature of the Spin Resonance Mode in CeCoIn 5

May 29, 2020
Author(s)
Yu Song, Weiyi Wang, John S. Van Dyke, Naveen Pouse, Sheng Ran, Duygu Yazici, Astrid Schneidewind, Petr Cermak, Yiming Qiu, M. B. Maple, Dirk K. Morr, Pengcheng Dai
Complex intertwined orders often emerge in strongly correlated electron materials in the vicinity of unconventional superconductivity. Superconductivity is typically optimized when such orders are suppressed, although associated fluctuations remain intense

Structure, ferromagnetic resonance and permeability of nanogranular fe-Co-B-Ni films

May 16, 2006
Author(s)
Pasquale Massimo, Celegato Federica, Coisson Marco, Magni Alessandro, Perero Sergio, Pavel Kabos, Teppati Valeria, Han Suk Hee, Kim Jongryoul, Lim Sang Ho
The static and microwave magnetic properties of soft nanogranular (Fe0.7)Co0.3)71B22Ni films with a 2T saturation magnetization are presented as a function of thickness, ranging from 135 to 235 nm. Microwave permeability values from 10 to 50 are measured

High-frequency noise measurements in spin-valve Devices

July 1, 2003
Author(s)
N. A. Stutzke, S. L. Burkett, Stephen E. Russek
High-frequency magnetic noise in magnetoresistive devices being developed for read-sensor and magnetic random access memory applications may present fundamental limitations on the performance of sub-micrometer magnetic devices. High- frequency magnetic

Nonlinear losses in magnon transport due to four-magnon scattering

May 25, 2020
Author(s)
T. Hula, K. Schultheiss, A. Budzakov, L. Korber, M. Bejarano, L. Flacke, L. Liensberger, M. Weiler, Justin Shaw, Hans Nembach, J. Fassbender, H. Schultheiss
We report on the impact of nonlinear four-magnon scattering on magnon transport in microstructured Co 25Fe 75 waveguides with low magnetic damping. We determine the magnon propagation length with microfocused Brillouin light scattering over a broad range

Magnetic Structure and Spin Waves in the Frustrated Ferro-Antiferro Magnet Pb 2 VO(PO 4 ) 2

May 28, 2019
Author(s)
S. Bettler, F. Landolt, O. M. Aksoy, Z. Yan, S. Gvasaliya, Yiming Qiu, E. Ressouche, K. Beauvois, S. Raymond, A. N. Ponomaryov, S. A. Zvyagin, A. Zheludev
… electron spin resonance experiments are used to study the magnetic structure and spin waves in Pb 2 VO(PO 4 ) 2 , a … reproduce the measured spin wave dispersion. The degree of magnetic frustration is correspondingly revised and found to … Magnetic Structure and Spin Waves in the Frustrated …

Surface, Interface and Thin-Film Magnetism

January 1, 1990
Author(s)
L Falicov, Daniel T. Pierce, S Bader, R Gronsky, K Hathaway, H Hopster, D Lambeth, S Parkin, G Prinz, M Salamon, Ivan K. Schuller, R Victora
… the art in the field of surface, interface, and thin-film magnetism is presented. New growth techniques which produce … understanding of surface, interface, and thin-film magnetism is of importance to many applications in magnetics … Surface, Interface and Thin-Film Magnetism …

Influence of the Surface on Magnetic Domain Wall Microstructure

January 1, 1989
Author(s)
M Scheinfein, John Unguris, Robert Celotta, Daniel T. Pierce
… of domain-wall widths, Bitter patterns, and magnetic-force-microscopy images can result from overlooking the extreme effect of the surface on magnetic microstructure. … Influence of the Surface on Magnetic Domain Wall Microstructure …

Physical Realization of a Quantum Spin Liquid Based on a Complex Frustration Mechanism

July 25, 2016
Author(s)
Christian Balz, Bella Lake, Johannes Reuther, Hubertus Luetkens, Rico Schonemann, Thomas Herrmannsdorfer, Yogesh Singh, A.T.M. Nazmul Islam, Elisa M. Wheeler, Jose Rodriguez Rivera, Tatiana Guidi, G. Giovanna Simeoni, Chris Baines, Hanjo Ryll
… very few. Here we describe the investigation of a new magnet with a novel, unexplored lattice that has several …

Spin-orbit torques from interfacial spin-orbit coupling for various interfaces

September 26, 2017
Author(s)
Kyoung-Whan Kim, Kyung Jin Lee, Jairo Sinova, Hyun-Woo Lee, Mark D. Stiles
We use a perturbative approach to study the effects of interfacial spin-orbit coupling in magnetic multilayers by treating the two-dimensional Rashba model in a fully three-dimensional description of electron transport near an interface. This formalism

Micro-engineered local field control for high-sensitivity multi-spectral MRI

June 19, 2008
Author(s)
Gary Zabow, Stephen Dodd, John M. Moreland, Alan P. Koretsky
In recent years, biotechnology and biomedical research have benefited from the introduction of a variety of specialized nanoparticles whose well-defined, optically distinguishable signatures enable simultaneous tracking of numerous biological indicators

Cobalt Ferrite Nanoparticle Intercalated Carbon Nanotubes for a Nanomagnetic Ultrasensitive Sensor for Cr-VI in Water

June 24, 2020
Author(s)
Tassew Mekuria, Syed Khalid, Kathryn L. Krycka, Markus Bleuel, Himanshu Verma, Haiping Hong, Shashi P. Karna, Dereje Seifu
Nanocomposites of cobalt ferrite (CFO) magnetic nanoparticles intercalated on carbon nanotubes (CNTs) are evaluated as a nanomagnetic ultrasensitive sensor for the environmental toxin, hexavalent chromium (Cr-VI). Specifically, the structural and magnetic

Strain Mediated Voltage Control of Magnetic Anisotropy and Magnetization Reversal in Bismuth Substituted Yttrium Iron Garnet Films and Meso-structures

November 21, 2025
Author(s)
Walid Al Misba, Miela Gross, kensuke hayashi, Daniel Gopman, Caroline Ross, Jayasimha Atulasimha
… We report on magnetic anisotropy modulation in Bismuth substituted Yttrium … Kerr effect microscopy (MOKE) shows the modulation of magnetic anisotropy with voltage-induced strain. Furthermore, … a fixed magnetic field produces a "90" ° switching of the magnetization easy axis above a threshold voltage. The …

Anomalous spin-orbit torques in magnetic single-layer films

July 22, 2019
Author(s)
Wenrui Wang, Tao Wang, Vivek P. Amin, Yang Wang, Anil Radhakrishna, Angie Davidson, Shane Allen, Thomas J. Silva, Hendrik Ohldag, Davor Balzar, Barry L. Zink, Paul M. Haney, John Xiao, D.G. Cahill, Virginia O. Lorenz, Xin Fan
… electric current perpendicular to the magnetization in a magnetic film generates charge and spin accumulation on the … opposite spin-orbit torques on the surfaces of the magnetic film. Using the magneto-optic Kerr effect to measure … the current understanding of spin-orbit torque in magnetic/nonmagnetic bilayers and introducing a new route for …

400-Fold Reduction in Saturation Field by Interlayering

January 13, 2009
Author(s)
William F. Egelhoff Jr., John E. Bonevich, Philip Pong, John Unguris, Robert D. McMichael, Gery R. Stafford, Carlos R. Beauchamp
The buildup of stress with increasing thickness of magnetic thin films is a common phenomenon that often induces undesirable saturation fields that can convert an otherwise magnetically soft film into a magnetically hard one. We have found that by

Magnetization dynamics induced by in-plane currents in ultrathin magnetic nanostructures with Rashba spin-orbit coupling

May 8, 2012
Author(s)
Kyoung-Whan Kim, Soo-Man Seo, Jisu Ryu, Kyung Jin Lee, Hyun-Woo Lee
… This additional torque modifies the current-induced magnetization dynamics qualitatively and may be responsible for various magnetization dynamics phenomena observed in experiments. … Magnetization dynamics induced by in-plane currents in ultrathin magnetic nanostructures with Rashba spin-orbit coupling …
Displaying 726 - 750 of 3361
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