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Search Publications

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Displaying 101 - 125 of 3360

Synthesis and Characterization of Cobalt/Gold Bimetallic Nanoparticles

April 1, 2007
Author(s)
Guangjun Cheng, Angela R. Hight Walker
Cobalt/gold (Co/Au) bimetallic nanoparticles are prepared by synthesizing Au via chemical reduction in the presence of pre-synthesized Co nanoparticles. Transmission electron microscopy (TEM), ultraviolet-visible (UV-vis) absorption spectrometry, and a

Surface Magnetic Microstructure

January 1, 1990
Author(s)
M Scheinfein, John Unguris, Robert Celotta, Daniel T. Pierce
… The way in which a magnetic solid minimizes its energy through the formation of … wall may change into a Neel wall in order to reduce the magnetic stray field energy of teh ferromagnetic system. We present high spatial resolution images of surface magnetic microstructure obtained by scanning electron …

Interlayer Exchange Coupling

September 29, 1999
Author(s)
Mark D. Stiles
The extensive research done on interlayer exchange coupling in transition metal multilayers has resulted in a deep understanding of this coupling and a remarkable agreement between theoretical results and measurements. The coupling between two magnetic

Magnetic Properties and Electronic Origin of the Interface between Dilute Magnetic Semiconductors with Orthogonal Magnetic Anisotropy

May 15, 2020
Author(s)
Ryan F. Need, Seul-Ki Bac, Xinyu Liu, Sanghoon Lee, Brian Kirby, Margaret Dobrowolska, Jacek Kossut, Jacek K. Furdyna
… Controlling changes in magnetic anisotropy across epitaxial film interfaces is an … for many spintronic devices. For the canonical dilute magnetic semiconductor GaMnAs, magnetic anisotropy is highly tunable through strain and … neutron scattering, dilute magnetic semiconductors …

Artifacts in magnetic measurements of fluid samples

August 24, 2016
Author(s)
Cindi L. Dennis, Zoe A. Boekelheide
… Applications of magnetic fluids are ever increasing, as well as the … limited. Here, we describe artifacts which can occur in magnetic measurements of fluid samples and their impact. The … magnetic fluids, magnetic nanoparticles, magnetic microparticles, artifacts, …

Amorphous FeCoCrZrB Ferromagnets for Use as High-Temperature Magnetic Refrigerants

April 27, 2006
Author(s)
Freemon Johnson, Robert D. Shull
… Magnetic metallic glasses, having large magnetic moments and high Curie Temperatures (TC), have not been widely studied as magnetic refrigerants. In this study, we report on the … amorphous magnets, magnetic measurements, magnetic refrigeration, magnetocaloric …

Multiferroicity and Phase Diagram of Ferro-Rotational Magnet RbFe(SO4)2

March 27, 2025
Author(s)
Junjie Yang, Dimuthu Obeysekera, William Ratcliff, Lu Li, Sabine N. Neal, Janice L. Musfeldt, Shinichiro Yano
… Ferro-rotational magnet RbFe(SO4)2 has attracted attention for its stable … Multiferroicity and Phase Diagram of Ferro-Rotational Magnet RbFe(SO4)2 …

Effect of Magnetic Field Dynamics on Thermocouple Performance

January 3, 2005
Author(s)
F Shir, Lawrence H. Bennett, C Mavriplis
… measuring temperature by thermocouples in a time-dependent magnetic field. Although there is considerable experience of the effect of a steady magnetic field, there is a lack of awareness of the outcome … for various operational parameters: frequency of the magnetic field, as well as thermocouple type, length of the …

Magnetic Combinatorial Thin-Film Libraries

January 1, 2001
Author(s)
Stephen E. Russek, William E. Bailey, G A. Alers
… Magnetic combinatorial libraries have been fabricated to investigate complex magnetic thin-film systems and to provide test systems to … is a new and powerful method to develop and investigate magnetic thin-film systems which require ternary or … Magnetic Combinatorial Thin-Film Libraries …

Harmonic dependence of thermal magnetic particle imaging

September 22, 2023
Author(s)
Thinh Bui, Mark-Alexander Henn, Weston L. Tew, Megan Catterton, Solomon I. Woods
… enable sensitive and accurate 3D temperature monitoring by magnetic particle imaging. We have developed a magnetic particle imaging instrument to observe temperature … Magnetic particle imaging, magnetic instrumentation, temperature imaging, noise … Harmonic dependence of thermal magnetic particle imaging …

Exposure Parameters During Studies with ELF Magnetic and Electric Fields

December 1, 1999
Author(s)
Martin Misakian
… power frequency and other extremely low frequency [ELF] magnetic and electric fields, a short survey is given of … during in vivo and in vitro laboratory studies with ELF magnetic and electric fields. The possible exposure … parameters during animal and cell culture studies with magnetic fields include induced electric fields and currents, …

Nanometer Size Magnetic Domains and Coherent Magnetization Reversal in a Giant Exchange Bias System

August 23, 2011
Author(s)
C. Dufour, M .R. Fitzsimmons, Julie Borchers, M. Laver, Kathryn L. Krycka, K. Dumesnil, Shannon M. Watson, Wangchun Chen, S. Singh
… scattering of unpolarized and polarized neutron beams the magnetization reversal occurs via formation of 10-100's nm sized magnetic domains in an exchanged biased DyFe 2/YFe d2^ … superlattice. The reversal mechanism involves rotation of magnetization in and out of the sample plane. Remarkably, the …

Helical Magnetism in Sr-Doped CaMn 7 O 12 Films

December 19, 2018
Author(s)
Amanda Huon, Anuradha M. Vibhakar, Alexander Grutter, Julie Borchers, Steven Disseler, Yaohua Liu, Wei Tian, Fabio Orlandi, Pascal Manuel, Dmitry D. Khalyavin, Yogesh Sharma, Andreas Herklotz, Ho Nyung Lee, Michael R. Fitzsimmons, Roger D. Johnson, Steven J. May
… Noncollinear magnetism can play an important role in multiferroic … demonstrates a chemical-based approach for tuning helical magnetism in quadruple perovskite films and enables future … Helical Magnetism in Sr-Doped CaMn 7 O 12 Films …

Graded Magnetic Materials

May 17, 2021
Author(s)
Lorenzo Fallarino, Brian Kirby, Eric E. Fullerton
… Graded magnetic materials represent a promising new avenue in modern … gradients being transferred into depth dependent magnetic states in ferromagnets, while also reviewing other … Graded Magnetic Materials …

Oersted Field Induced Magnetization Scissoring In Permalloy Bars

December 10, 2009
Author(s)
Lu Yuan, Fabio C. da Silva, Sean Halloran, Hamid Z. Fardi, David P. Pappas
… We have systematically studied the magnetization behavior induced by the applied current in the … and NiFe10 (in nm), respectively. We show that magnetization scissoring between the top and bottom regions … permalloy bars with different dimensions show that the magnetization scissoring is strongest for the bars with low …

Chapter 13. Dynamics of nanoscale magnetic systems

September 17, 2017
Author(s)
Thomas M. Wallis, Pavel Kabos
… The topic of nanoscale magnetic systems is broad and could easily provide enough … as in previous ones, we will focus on the nanoscale magnetic systems for which near-field scanning microwave … techniques for characterization of micro- and nano-magnetic systems. At present, these complementary techniques …

Surface magnetic phase diagram for a semi-infinite ferromagnet

October 12, 2001
Author(s)
Pavel Kabos, David P. Pappas
… systems and in thin ferromagnet films. Surface magnetic canting always occurs when the magnitude of the … the thickness of a thin film supported on a hard magnetic substrate induces a spin reorientation transition from the uniform, in-plane magnetic structure to a canted. state. The inverse spin …

Spin-Orbit Coupled Molecular Quantum Magnetism Realized in Inorganic Solid

September 21, 2016
Author(s)
Sang-Youn Park, S.-H. Do, K.-Y. Choi, J.-H. Kang, Dongjin Jang, B. Schmidt, Manuel Brando, B.-H. Kim, D.-H. Kim, Nicholas Butch, Seongsu Lee, Sungdae Ji
… The molecular magnetism, representing an isolated spin state, is of particular interest due to characteristics of quantum magnetism with quantum tunneling phenomena underlying qubits … for the quantum information devices. Such quantum magnetism has been realized in magnetic metal-organic …
Displaying 101 - 125 of 3360
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