Results 211 to 220 of about 4,114 (260)

Magnetic excitations in neodymium

Journal of Applied Physics, 1985
While magnetic excitations in rare-earth systems in which the full ordered moment develops at each site have been comprehensively investigated, the excitations in sinusoidally modulated magnetic systems have proved to be rather elusive. Moreover, the character of the magnetic excitations in modulated magnets has been a subject of theoretical interest ...
H.B. Stanley, K.A. McEwen, W.G. Stirling
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Permanent Magnet Wind Generators: Neodymium vs. Ferrite Magnets

2021 3rd International Congress on Human-Computer Interaction, Optimization and Robotic Applications (HORA), 2021
Renewable energy is an environmentally friendly and effective solution to ensure security of energy supply which is becoming more critical as well as increasing population. The share of electricity generation based on wind energy among renewable energy sources in the world is increasing day by day in parallel with the development and design diversity ...
Özdemir, Mehmet Semih, OCAK, CEMİL, DALCALI, ADEM   +2 more
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Magnetic excitations in neodymium

Journal of Magnetism and Magnetic Materials, 1983
Abstract Neutron inelastic scattering measurements on dhcp Nd have been analyzed in terms of magnetic excitations on the hexagonal and locally cubic sites. The excitations above 10 meV arise from the cubic site moments whereas the hexagonal site moments give rise to excitations at lower energies.
W.G. Stirling, K.A. McEwen
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Electromagnetic Induction with Neodymium Magnets

The Physics Teacher, 2013
In April 1820, Hans Christian Ørsted noticed that the needle of a nearby compass deflected briefly from magnetic north each time the electric current of the battery he was using for an unrelated experiment was turned on or off. Upon further investigation, he showed that an electric current flowing through a wire produces a magnetic field.
Deborah Wood, John Sebranek
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Magnetic phase diagrams of neodymium

Journal of Physics: Condensed Matter, 1991
The magnetic phase diagrams of Nd, for fields up to 12 T applied parallel to the crystallographic a-, b-, and c-directions, have been constructed from observed anomalies in thermal expansion and longitudinal magnetostriction measurements. The results are interpreted with reference to neutron diffraction studies and in terms of multi-domain single-q ...
S W Zochowski, K A McEwen, E Fawcett
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Magnetic excitations in neodymium antimonide

Physical Review B, 1976
Abstract The magnetic excitation spectrum of NdSb has been studied by neutron inelastic scattering. The experimental data are satisfactory described in terms of a cubic crystal field, an isotropic Heisenberg exchange and a large quadrupolar exchange interaction.
A. Furrer, W.J.L. Buyers, R.M. Nicklow, O. Vogt   +3 more
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Neodymium-iron-boron permanent magnets

Journal of Magnetism and Magnetic Materials, 1991
Abstract Permanent magnet research and technology have been propelled into a new era by the rare earth-iron-boron materials, R 2 Fe 14 B. Energy products surpassing all previous values have been attained in magnets based on Nd 2 Fe 14 B, the prototypical compound. In this review we place Nd-Fe-B in the historical context of permanent magnet evolution,
J.F. Herbst, J.J. Croat
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Magnetic phase transitions in neodymium

Journal of Magnetism and Magnetic Materials, 1990
The rare-earth metal neodymium exhibits a hierarchy of 1-q, 2-q, 3-q and 4-q magnetic structures below TN=19.9 K. Magnetostriction and thermal expansion measurements have revealed more than 10 phases in the magnetic phase diagram for fields up to 5 T. These phases have been identified by neutron diffraction studies.
K.A. McEwen, S.W. Zochowski
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Magnetic Dynamics of a Neodymium(III) Single-Ion Magnet

Inorganic Chemistry, 2018
Slow relaxation of magnetization is observed in a neodymium(III) single-ion magnet based on phosphine oxide, which successfully extends our pentagonal bipyramidal family to light lanthanides. Comprehensive magnetic characterizations reveal that the magnetic dynamics follow the power law that corresponds to a Raman process, despite an energy splitting ...
Yan-Cong Chen, Xin-Shuo Huang, Jun-Liang Liu, Ming-Liang Tong   +3 more
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The magnetic field about a three-dimensional block neodymium magnet

ANZIAM Journal, 2020
Neodymium magnets were independently discovered in 1984 by General Motors and Sumitomo. Today, they are the strongest type of permanent magnets commercially available. They are the most widely used industrial magnets with many applications, including in hard disk drives, cordless tools and magnetic fasteners.
GRAHAM WEIR, GEORGE CHISHOLM, JEROME LEVENEUR   +2 more
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