Results 211 to 220 of about 103,579 (264)
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Electric and Magnetic Phenomena
2021This chapter treats the responses of bulk matter to constant external electric and magnetic fields. The concepts of electric and magnetic dipole moments are reviewed, modifications to thermodynamics needed to accommodate field effects, and the statistical mechanical descriptions of polarizable media in the presence of applied fields are developed.
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Nonlinear phenomena in systems of magnetic holes
Physical Review Letters, 1990Experimental studies are made of the response of bound pairs of magnetic holes (nonmagnetic microspheres in ferrofluid) subjected to a rotating magnetic field. For increasing driving frequency, the motion of the system goes through a transition from a state where the pair axis follows the magnetic field with a constant phase delay to a state where the ...
, Helgesen, , Pieranski, , Skjeltorp
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Magnetic Reconnection Phenomena In Interplanetary Space
Space Science Reviews, 2003Interplanetary magnetic reconnection(IMR) phenomena are explored based on the observational data with various time resolutions from Helios, IMP-8, ISEE3, Wind, etc. We discover that the observational evidence of the magnetic reconnection may be found in the various solar wind structures, such as at the boundary of magnetic cloud, near the current sheet,
Fengsi Wei +3 more
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2004
In this chapter we deal with a number of magnetic properties and their directional dependence: pyromagnetism, magnetic susceptibility, magnetoelectricity, and piezomagnetism. In the course of dealing with these properties, two new ideas are introduced: magnetic symmetry and axial tensors.
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In this chapter we deal with a number of magnetic properties and their directional dependence: pyromagnetism, magnetic susceptibility, magnetoelectricity, and piezomagnetism. In the course of dealing with these properties, two new ideas are introduced: magnetic symmetry and axial tensors.
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Thermodynamics of cooperative phenomena in magnetic materials
Journal of Magnetism and Magnetic Materials, 1986Abstract A thermodynamic approximation for cooperative phenomena in magnetic materials is proposed. Two types of interaction are taken into account: between atomic pairs and between atomic groups, averaged, represented by a fixed atom. Thermodynamic quantities for Ising and Heisenberg model systems are obtained from series of quasichemical reactions.
P. L. Cavallotti, OSSI, PAOLO MARIA
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Physics Bulletin, 1978
A variety of crystals with magnetic properties approximating to those of 'ideal' one (Id) and two (2d) dimensional arrays of localised spins, much studied by theoreticians, are now available for experimental study. Many of the ideal systems exhibit no long-range magnetic order at low temperatures, so that short-range effects become important giving ...
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A variety of crystals with magnetic properties approximating to those of 'ideal' one (Id) and two (2d) dimensional arrays of localised spins, much studied by theoreticians, are now available for experimental study. Many of the ideal systems exhibit no long-range magnetic order at low temperatures, so that short-range effects become important giving ...
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Magnetic phenomena in UNi1−Rh Al compounds
Journal of Alloys and Compounds, 1999Abstract We report on structure investigation and magnetization study of UNi 1− x Rh x Al solid solutions between an antiferromagnet UNiAl and a ferromagnet URhAl. The ZrNiAl-type hexagonal crystal structure of the parent compounds is preserved in the whole concentration range.
Andreev, A.V. +10 more
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Cavitation phenomena in magnetic liquids
Journal of Engineering Physics and Thermophysics, 1996Investigations of acoustic cavitation in magnetic liquids subjected to the action of inhomogeneous magnetic fields were carried out for the first time. Possible mechanisms of the effect of the fields on the dynamics of single bubbles, cavitation threshold, and cavitation-induced erosion are considered.
P. P. Prokhorenko +4 more
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Investigation of Magnetic Field Phenomena in the Ionosphere.
1979Abstract : Weston Observatory (Boston College) has maintained a geomagnetic observatory to continuously monitor changes in the geomagnetic field and to provide standards for magnetic instrumentation and to maintain a coil system in which a wide variety of magnetic instrumentation can be tested and calibrated to support AFGL RESEARCH.
Edward A. Johnson, John F. Devane
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