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Displaying 551 - 575 of 3361

Spin Polarized Secondary Electrons: Theory

January 1, 1986
Author(s)
David R. Penn, S Apell, S Girvin
We show that the spin polarization of the secondary electrons, P(E), yields useful information about the electron-electron interaction. The ration of majority to minority spin lifetimes is related to the measured values of P(E) by τ {uarr}(E)/τ {darr} (E =

Uniaxial Pressure Effect on the Magnetic Ordered Moment and Transition Temperatures in BaFe 2-x T x As 2 (T=Co,Ni)

February 17, 2017
Author(s)
David W. Tam, Yu Song, Haoran Man, Sky C. Cheung, Zhiping Yin, Xingye Lu, Weiyi Wang, Benjamin A. Frandsen, Lian Liu, Zizhou Gong, Takashi U. Ito, Yipeng Cai, Murray N. Wilson, Shengli Guo, Keisuke Koshiishi, Wei Tian, Bassam Hitti, Alexandre Ivanov, Yang Zhao, Jeffrey W. Lynn, Graeme M. Luke, Tom Berlijn, Thomas A. Maier, Yasutomo J. Uemura, Pengcheng Dai
… this is indeed the case for BaFe 2 As 2 , we find that the magnetic moment in BaFe 1.915 Ni 0.085 As 2 increases by as … Uniaxial Pressure Effect on the Magnetic Ordered Moment and Transition Temperatures in BaFe …

Magnetic Characterization of Electrodeposited Pt1-xNix Alloy Films: Influence of Deposition Potential and the Presence of Boric Acid

September 21, 2022
Author(s)
Eric Rus, Eduardo De Lima Correa, Evan Groopman, Todd Williamson, Hussein Hijazi, Leila Kasaei, Leonard Feldman, Cindi L. Dennis, Thomas P. Moffat
… examined for possible application as temperature sensing magnetic reporters. The alloys were prepared by … backscattering spectroscopy, SIMS, XPS, EDS, SQUID-VSM, magnetic thermosensitivity, oxygen … Magnetic Characterization of Electrodeposited Pt1-xNix Alloy …

Strict Limit on In-Plane Ordered Magnetic Dipole Moment in URu 2 Si 2

April 17, 2014
Author(s)
Kathryn Aileen Ross, Leland Weldon Harriger, Z. Yamani, W. J. L. Buyers, J.D. Garrett, A.A. Menovsky, J.A. Mydosh, Collin L. Broholm
… limit υ υ on an f - or d-orbital based in-plane staggered magnetic dipole moment, which is associated with multipolar … Condensed Matter, Correlated electron, Heavy Fermion, magnetic structure … Strict Limit on In-Plane Ordered Magnetic Dipole Moment in URu 2 Si 2 …

SEMPA Imaging of Domain Dynamics in Amorphous Metals

January 1, 2000
Author(s)
A Gavrin, John Unguris
We show how Scanning Electron Microscopy with Polarization Analysis (SEMPA) may be used to observe domain wall motion in amorphous ferromagnetic ribbons commonly used in transformer cores. SEMPA images were obtained from both the smooth, air side of the

In-situ Polarized He3-Based Neutron Polarization Analyzer for SNS Magnetism Reflectometer

January 31, 2011
Author(s)
W-T Lee, X Tong, J. Pierce, M. Fleenor, A. Ismaili, JL Robertson, Wangchun Chen, Thomas R. Gentile, A. Hailemariam, R J. Goyette, A. Parizzi, V Lauter, F. Klose, H. Kaiser, C. Lavelle, DV Baxter, G L. Jones, J. Wexler, L. McCollum
… 3He-based neutron polarization analyzer system for the Magnetism Reflectometer at the Spallation Neutron Source, Oak … He-3, in-situ, magnetism reflectrometer, neutron polarization … Polarized He3-Based Neutron Polarization Analyzer for SNS Magnetism Reflectometer …

Polarity-tunable anomalous Hall effect in magnetic topological insulator MnBi2Te4

February 4, 2022
Author(s)
Albert Davydov, Huairuo Zhang
… is useful for electronic device applications. Here in a magnetic topological insulator MnBi2Te4 grown by molecular … by the surface-state-mediated RKKY interaction among magnetic impurities on the surface. Our work provides the … anomalous Hall effect, magnetic topological insulator, MnBi2Te4, transmission …

A medical device-grade T1 and ECV phantom for global T1 mapping quality assurance - The T 1 Mapping and ECV Standardization in cardiovascular magnetic resonance (T1MES) program

September 22, 2016
Author(s)
Gabriella Captur, Peter Gatehouse, Katy Keenan, Friso Heslinga, Ruediger Bruehl, Marcel Prothmann, Martin J. Graves, Richard J. Eames, Camilla Torlasco, Giulia Benedetti, Jacqueline Donovan, Bernd Ittermann, Redha Boubertakh, Andrew Bathgate, Celine Royet, Wenjie Pang, Reza Nezafat, Michael Salerno, Peter Kellman, James C. Moon
… trials, but measurements differ between cardiovascular magnetic resonance (CMR) scanners and pulse sequences. To … Journal of Cardiovascular Magnetic Resonance … The T 1 Mapping and ECV Standardization in cardiovascular magnetic resonance (T1MES) program …

Magnetic Field Sensor Based on a OLED/Organic Photodetector Stack

August 1, 2023
Author(s)
Sebastian Engmann, Emily Bittle, David Gundlach
… In this study a novel, all organic magnetic field sensor is presented based on an organic light … in reference devices have shown an MEL of about 60% for magnetic fields on the order of 10 mT. The OPD is based on a … a current pre-amp with gain of 106 V/A) is achieved near a magnetic field of 3 mT to 4 mT. However, the detectivity at …

Second Harmonic Magneto-Resistive Imaging to Authenticate and Recover Data From Magnetic Storage Media

March 1, 2001
Author(s)
David P. Pappas, C S. Arnold, G Shalev, C Eunice, D Stevenson, Steven Voran, Mike E. Read, Erin M. Gormley, James Cash, Ken Marr, James Ryan
… was developed that allows for high resolution imaging of magnetic tapes and digital media. By using second harmonic … magneto-resistive imaging, data recovery, magnetic recording, forensics … Imaging to Authenticate and Recover Data From Magnetic Storage Media …

Developments in nano-oscillators based upon spin-transfer point-contact devices

December 31, 2007
Author(s)
Thomas J. Silva, William H. Rippard
We review the current status of research on microwave nano-oscillators that utilize spin transfer devices with point-contact geometry, with an emphasis on the open questions that still prevent our full understanding of device properties. In particular, we

Sequential Bayesian experiment design for optically detected magnetic resonance of nitrogen-vacancy centers

November 16, 2020
Author(s)
Sergey Dushenko, Kapildeb Ambal, Robert McMichael
… In wide-range magnetometry using optically detected magnetic resonance of NV- centers, we demonstrate more than … splitting of the NV- energy levels allows detection of the magnetic field via photoluminescence. We compare conventional … magnetometry, experiment design, magnetic resonance, NV center, diamond, quantum measurements …

Polarization-Analyzed Small-Angle Neutron Scattering. II. Mathematical Angular Analysis

June 1, 2012
Author(s)
Kathryn L. Krycka, Julie A. Borchers, Yumi Ijiri, Ryan Booth, Sara Majetich
SANS with longitudinal polarization analysis is a powerful technique to study magnetic morphology and domain interactions with directional sensitivity on the nancoscale. Here, by explicitly isolating the various nuclear-magnetic and magnetic-magnetic
Displaying 551 - 575 of 3361
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