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Displaying 26 - 50 of 3359

Microcantilever Torque Magnetometry Study of Patterned Magnetic Films

October 1, 2006
Author(s)
L. Yuan, Lan Gao, R. Sabirianov, Sy-hwang Liou, Michelle Chabot, Dong-Hoon Min, John M. Moreland, Bao Shan Han
… paper, we investigated a process for preparing patterned magnetic films on cantilevers and studied the magnetic interactions of a single pair of micrometer-sized … The bars were prepared with focused ion beam milling. The magnetic hysteresis loops show that the switching field of a …

Magnetic Domain Imaging of Spintronic Devices

January 1, 2003
Author(s)
Robert Celotta, John Unguris, Daniel T. Pierce
… A description of high resolution magnetic domain imaging methods of specific use in observing magnetic structure in magneto electronic, i.e., spintronics. … Magnetic Interactions and Spin Transport … magnetic domains, magneto electronics, MFM, SEMPA, … Magnetic Domain Imaging of Spintronic Devices …

Microfluidic Platform for Magnetic Nanoparticle Trapping and Detection

July 15, 2013
Author(s)
Charles A. Little, John Pellegrino, Stephen E. Russek
… (GMR) sensors to trap and count small concentrations of magnetic nanoparticles (MNPs) within microfluidic flow. The … Giant magnetoresistance, Magnetic particles, Magnetic sensors, Microfluidics … Microfluidic Platform for Magnetic Nanoparticle Trapping and Detection …

The Effect of Stress Induced Anisotropy in Patterned FeCo Thin Film Structures

April 1, 2006
Author(s)
Wonpil Yu, J A. Bain, Willard C. Uhlig, John Unguris
The usage of high moment FeCo alloys in magnetic recording heads can result in stress induced anisotropy due to the high magnetostriction constants of FeCo alloys with 30% to 50% Co. In this work, 1um thick FeCo (65% Fe, 35% Co) sheet films with a Cu

Nanosecond Magnetization Reversal in High Coercivity Thin Films

January 1, 2000
Author(s)
N D. Rizzo, Thomas J. Silva, Anthony B. Kos
… We used a wide-field Kerr microscope to measure magnetization reversal in high coercivity thin film media … For sample A, we find that after a step change in H. the magnetization initially relaxes exponentiallywith a time … relaxation is observed, implying that the dynamic magnetization response time is subnanosecond. We observe …

Metastable States in Large Angle Magnetization Rotations

September 1, 2000
Author(s)
Pavel Kabos, Shehzaad F. Kaka, Stephen E. Russek, Thomas J. Silva
… edge effects or inhomogeneities strongly influence the magnetization behavior under certain initial conditions. … states can form which significantly increase the magnetization response time. … Metastable States in Large Angle Magnetization Rotations …

Uncertainty estimation for 2D magnetic particle imaging

March 21, 2022
Author(s)
Mark-Alexander Henn, Klaus Natorf Quelhas, Solomon I. Woods
… Magnetic Particle Imaging (MPI) has in recent years been … as a powerful imaging tool that measures thenon-linear magnetic response of magnetic particles to an applied field. Obtaining … International Journal on Magnetic Particle Imaging … Magnetic Particle Imaging, Uncertainty Quantification, …

Rotational Hysteresis of Exchange-Spring Magnets

September 13, 2002
Author(s)
J.S. Jiang, S D. Bader, H Kaper, G Leaf, Robert D. Shull, Alexander J. Shapiro, V S. Gornakov, Valerian I. Nikitenko, C L. Platt, A. E. Berkowitz, S David, E E. Fullerton
… of the rotational hysteresis in exchange-spring magnets. Magneto-optical imaging and torque magnetometry … exchange-spring magnets, magneto-optical imaging, rotational hysteresis, … Rotational Hysteresis of Exchange-Spring Magnets …

Magnetic Domain Structure and Imaging of Co-Pt Multilayer Thin-Film Nanostructures

September 1, 2000
Author(s)
Stephen E. Russek, William E. Bailey
… hysteresis loops of the 100 nm doet were measured using magnetic force microscopy (MFM) and compared to remanent … The calculations indicate that narrow features in the magnetic field gradients should be observed near the edges of the dots and that these samples may be of use as a magnetic imaging resolution standard. …

Magnetic Scattering

June 5, 2021
Author(s)
Jeffrey W. Lynn, Bernhard Keimer
… Handbook of Magnetism and Magnetic Materials … Magnetic Neutron Scattering, Magnetic X-ray Scattering, Review Chapter … Magnetic Scattering …

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 … sample's undirectional anisotropy. Herein, we compare the magnetization reversal processes in the biased and nonbiased … Magnetization reversal, domain structure, exchange coupling, …

Comparison of Electrical Techniques for Magnetization Dynamics Measurements in Micro/Nanoscale Structures

March 25, 2011
Author(s)
SangHyun S. Lim, Thomas M. Wallis, Atif A. Imtiaz, Dazhen Gu, Pavel Kabos, Pavol Krivosik
… transmission, and spin rectification measurements for magnetization dynamics in individual patterned sub-micron … electrical techniques allow us to identify distinctive magnetization dynamics; vortex excitation, domain wall (DW) … owing to its sensitivity to DW resonance and a non-linear magnetization response due to increasing RF power. …

Magnetization Reversal of Three-Dimensional Nickel Anti-Sphere Arrays

December 23, 2016
Author(s)
Le Yu, Zhongying Yan, Han-Chang Yang, Xuzhao Chai, Bingqing Li, Sina Moeendarbari, Yaowu Hao, Di Zhang, Gang Feng, Ping Han, Dustin A. Gilbert, Kai Liu, Kristen S. Buchanan, Xuemei Cheng
… Magnetization Reversal of Three-Dimensional Nickel …

Structural and magnetic properties of sputtered FePd thin films grown on MgO single-crystal substrates with oblique and normal substrate orientation

July 28, 2020
Author(s)
Xinjun Wang, Sergiy Krylyuk, Daniel Josell, Daniel Gopman, Jian-Ping Wang, Delin Zhang
… Materials possessing perpendicular magnetic anisotropy derived from the intrinsic crystal … alloys, have the potential to deliver superior scaling of magnetic memory elements compared to materials whose … stronger degree of L10 orientation, a larger perpendicular magnetic anisotropy field and lower Gilbert damping, …

Ru Spacer Thickness Dependences of the Domain Nucleation and Growth in Co/Ru/Co Synthetic Antiferromagnet

March 1, 2003
Author(s)
V S. Gornakov, Valerian I. Nikitenko, William F. Egelhoff Jr., Robert D. McMichael, Alexander J. Shapiro, Robert D. Shull
The relative orientation of Co magnetization vectors in a Co/Ru/Co/Ta structure vary gradually from parallel to antiparallel orientation as a function of Ru thickness varying from 0 nm to 1.0 nm. At intermediate average Ru thicknesses from 0.2 nm to 0.35

Dipolar Chains formed by synthesized cobalt nanocubes

May 11, 2009
Author(s)
Guangjun Cheng, Robert D. Shull, Angela R. Hight Walker
Cobalt nanocubes with an average edge length of 50 nm and the epsilon crystalline structure were synthesized via thermo-decomposition in 1,2-dichlorobenzene at 120 oC in the presence of the surfactants. These nanocubes form dipolar chains upon drying in

Optical detection of NMR J -spectra at zero magnetic field

March 28, 2009
Author(s)
M Ledbetter, C.W. Crawford, A Pines, D.E. Wemmer, Svenja A. Knappe, John Kitching, D Budker
… Nuclear magnetic resonance (NMR) has emerged as one of the most … Slichter. Conventional detection of NMR relies on large magnetic fields to achieve high sensitivity, and hence, with … Journal of Magnetic Resonance … NMR, nuclear magnetic resonance, atomic magnetometer, scalar coupling, …

Head and Media Challenges for 3 Tb/in 2 Microwave Assisted Magnetic Recording

February 3, 2014
Author(s)
Thomas J. Silva, Justin M. Shaw, Hans T. Nembach, Mike Mallary, Kumar Srinivasan, Gerado Bertero, Dan Wolf, Christian Kaiser, Michael Chaplin, Mahendra Pakala, Leng Qunwen, Yiming Wang, Carl Elliot, Lui Francis
… A specific design for Microwave Assisted Magnetic Recording (MAMR) at about 3Tb/in 2 (0.47 Tb/cm 2 or … contrast its requirements with conventional Perpendicular Magnetic Recording (PMR). In particular it has been … microwave assisted magnetic recording, spin torque oscillator, field generating …

A Polarized LEED Study of Surface Magnetism

January 1, 1980
Author(s)
Daniel T. Pierce, Robert Celotta, G Wang, G P. Felcher, S Bader, K Miyano
… Journal of Magnetism and Magnetic Materials … A Polarized LEED Study of Surface Magnetism …

Magnetic Ordering in the Ising Antiferromagnetic Pyrochlore Nd 2 ScNbO 7

May 14, 2021
Author(s)
C. Mauws, N. Hiebert, M. Rutherford, H. D. Zhou, Q. Huang, M. B. Stone, Nicholas Butch, Y. Su, E. S. Choi, Z. Yamani, C. R. Wiebe
… occur on 14.0(2)% of the neodymium ions. The remaining magnetic species order completely into the all-in all-out … exhibit moment fragmentation. However, the phenomenon of magnetic fragmentation in magnetic pyrochlore lattices is very robust with respect to … Magnetic Ordering in the Ising Antiferromagnetic Pyrochlore …

Magnetization Dynamics Modeled in Magnetic Thin Films

March 1, 2003
Author(s)
Robert D. McMichael
… designers of high data rate computer hard drives and magnetic memory chips is that for most magnetic metals, it typically takes a fewnanoseconds for the magnetization to come to rest after it has been switched or … the media that switch to record the field pulses as a magnetization pattern, and for the read headsensors that …
Displaying 26 - 50 of 3359
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