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Displaying 1051 - 1075 of 3361

Manganese (III) porphyrins complexed with P22 virus-like particles as T1-enhanced contrast agents for magnetic resonance imaging

December 21, 2013
Author(s)
Robert J. Usselman
… IX (MnPP) complexes for evaluation as a macromolecular magnetic resonance imaging contrast agent. The resulting … making them interesting alternatives to current magnetic resonance imaging contrast agents. … Bacteriophage P22 virus-like particle (VLP), nuclear magnetic resonance imaging (MRI) contrast agent, T1-enhanced …

Resonant Magnetic Field Control of Elastic Scattering in Cold 85Rb

December 1, 1998
Author(s)
J L. Roberts, N R. Claussen, J P. Burke, C H. Greene, Eric A. Cornell, C E. Wieman
… A magnetic field-dependent Feshbach resonance has been observed … stoms in the F = 2, M = -2 state of 85 Rb. Changing the magnetic field by several Gauss caused the collision rate to … Resonant Magnetic Field Control of Elastic Scattering in Cold 85Rb …

Ferromagnetism in Bi 2 Se 3 :Mn Epitaxial Layers

August 30, 2013
Author(s)
H.J. von Bardeleben, J.L. Cantin, D. M. Zhang, A. Richardella, D. W. Rench, N. Samarth, Julie Borchers
The magnetism in approximatley}1at% Mn doped nanometric Bi 2Se 3 epitaxial layers has been studied by ferromagnetic resonance (FMR), magnetometry and polarized neutron reflectivity (PNR) measurements. The FMR results reveal the formation of an intrinsic

Particle Moment Canting in CoFe 2 O 4 Nanoparticles

November 19, 2014
Author(s)
K. Hasz, Y. Ijiri, Kathryn L. Krycka, Julie Borchers, R. A. Booth, S. Oberdick, S. A. Majetich
Polarization-analyzed small-angle neutron scattering methods are used to determine the spin morphology in high crystalline anisotropy, 11 nm diameter CoFe 2O 4 nanoparticle assemblies with randomly oriented easy axes. In moderate to high magnetic fields

Amplitude Mode in the Planar Triangular Antiferromagnet Na 0.9 MnO 2

June 5, 2018
Author(s)
Rebecca L. Dally, Yang Zhao, Zhijun Xu, Robin Chisnell, M. B. Stone, Jeffrey W. Lynn, Leon Balents, Stephen D. Wilson
Amplitude modes that arise from continuous symmetry breaking in materials are of broad interest as condensed matter analogs of the Higgs boson in particle physics. These modes reflect an oscillation in the amplitude of a complex order parameter, yet they

Quasilocal Critical Nature of Cooperative Paramagnetic Fluctuations in CaRuO 3 Metal

June 8, 2015
Author(s)
J. Gunasekera, Leland Harriger, T. Heitmann, A. Dahal, H. Knoll, D. K. Singh
We report new observation of cooperative paramagnetic fluctuations of Ru 4+ spins that coexist with the non-Fermi liquid state in CaRuO 3 perovskite below T22 K. Detailed electrical, magnetic and neutron scattering measurements reveal that the Ru R+ ions

Collective dynamics in the Heisenberg pyrochlore antiferromagnet Gd 2 Sn 2 O 7

October 22, 2008
Author(s)
J. R. Stewart, Jason Gardner, Yiming Qiu, G. Ehlers
Gd2Sn2O7 is believed to be a good approximation to a Heisenberg antiferromagnet on a pyrochlore lattice with exchange and dipole-dipole interactions. The system is known to enter a long-range ordered ground state (the "Palmer Chalker" state) below Tc = 1 K

Non-Adiabatic Spin Transfer Torque in Real Materials

March 16, 2009
Author(s)
Ion Garate, Keith Gilmore, Mark D. Stiles, Allan H. MacDonald
The motion of simple domain walls and of more complex magnetic textures in the presence of a transport current is described by the Landau-Lifshitz-Slonczewski (LLS) equations. Predictions of the LLS equations depend sensitively on the ratio between the

Magnetic properties of ultra-thin 3d transition metal alloys I: spin and orbital moments and confirmation of Slater-Pauling theory

April 7, 2018
Author(s)
Martin A. Schoen, Juriaan Lucassen, Hans T. Nembach, Thomas J. Silva, Bert Koopmans, Christian Back, Justin M. Shaw
… The structure and static magnetic properties - saturation magnetization, perpendicular … the interfacial contributions to the perpendicular magnetic anisotropy are investigated in a thickness series of … of thin film NixCo1-x, NixFe1-x and CoxFe1-x alloy magnetic properties. …

Ultrafast Demagnetization Dynamics at the M Edges of Magnetic Elements Observed Using a Tabletop High-Harmonic Soft X-Ray Source

December 15, 2009
Author(s)
Thomas J. Silva, Justin Shaw, Hans Nembach, Chan La-O-Vorakiat, Mark Siemens, Margaret M. Murnane, Henry C. Kapteyn, Stefan Mathias, Martin Aeschlimann, Patrik Grychtol, Roman Adam, Claus M. Schneider
… is reversed. A short pump pulse is used to destroy the magnetic alignment, which allows us to measure the fastest, … fs time resolution. The use of high harmonics for probing magnetic materials promises to combine nanometer spatial … Ultrafast Demagnetization Dynamics at the M Edges of Magnetic Elements Observed Using a Tabletop High-Harmonic …

A quantum ruler for orbital magnetism in moire quantum matter

October 5, 2023
Author(s)
Marlou Slot, Yulia Maximenko, Paul M. Haney, Sungmin Kim, Daniel Walkup, Evgheni Strelcov, En-Min Shih, Dilek Yildiz, Steven R. Blankenship, Kenji Watanabe, Takashi Taniguchi, Yafis Barlas, Nikolai Zhitenev, Fereshte Ghahari Kermani, Joseph A. Stroscio
… A quantum ruler for orbital magnetism in moire quantum matter …

Propagation and control of nano-scale, magnetic droplet solitons

June 11, 2012
Author(s)
Thomas J. Silva, Mark Hoefer, Matteo Sommacal
… stationary dissipative droplet soliton. Here, an external magnetic field is introduced to accelerate and control the … the acceleration of a stationary soliton by a negative magnetic field gradient, the sustenance of a stationary … Propagation and control of nano-scale, magnetic droplet solitons …

High sensitivity fiber-optic magnetic field sensors based on iron garnets

April 1, 1995
Author(s)
M. N. Deeter
… iron garnet crystals form the basis of magnetooptic magnetic field sensors which offer high sensitivity, … devices in the near term. Specifically, new designs for magnetic field sensors, electric current sensors, and novel … High sensitivity fiber-optic magnetic field sensors based on iron garnets …

Uses of Spin-Polarized Electrons in Fundamental Electron-Atom Collision Processes and the Analysis of Magnetic Microstructures

January 1, 1990
Author(s)
Michael H. Kelley
… by high-energy electron impact is used to determine the magnetic structure of ferromagnetic materials with very high … resolution has been exploited both in studies of teh basic magnetic properties of ferromagnetic materials and in studies of how thses basic properties affect the magnetic structure and performance of devices used for …

SEAC Maintenance Manual: The Outscriber

January 1, 1960
Author(s)
Russell A. Kirsch
One of the more serious problems in the design of automatic digital computers is that of getting the calculated results out of the machine rapidly enought to avoid delaying the further progress of the calculations. In many of the problems to which a

Thermodynamic analysis of the topologically close packed ? phase in the Co-Cr system

November 22, 2018
Author(s)
Peisheng Wang, Matthew C. Peters, Ursula R. Kattner, Kamal Choudhary, Gregory B. Olson
Density functional theory (DFT) calculations show that a thermodynamic description considering the magnetic contribution to the total energy for the end-members of the σ phase is necessary. A more straightforward method to use the DFT results in a CALPHAD
Displaying 1051 - 1075 of 3361
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