Results 261 to 270 of about 1,114,374 (290)
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Covalent magnetism and magnetic impurities
Journal of Physics: Condensed Matter, 2013We use the model of covalent magnetism and its application to magnetic insulators applied to the case of insulating carbon doped BaTiO3. Since the usual Stoner mechanism is not applicable we study the possibility of the formation of magnetic order based on a mechanism favoring singly occupied orbitals.
C, Gruber, P O, Bedolla, P, Mohn
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Tweezing of Magnetic and Non‐Magnetic Objects with Magnetic Fields
Advanced Materials, 2017Although strong magnetic fields cannot be conveniently “focused” like light, modern microfabrication techniques enable preparation of microstructures with which the field gradients – and resulting magnetic forces – can be localized to very small dimensions.
Timonen, Jaakko V I +2 more
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IEEE Spectrum, 1991
The earliest discoveries of electromagnetism are briefly recounted. The work of Volta (primary battery), Oersted (generating a magnetic field by a current) and Ampere (solenoid) is described. >
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The earliest discoveries of electromagnetism are briefly recounted. The work of Volta (primary battery), Oersted (generating a magnetic field by a current) and Ampere (solenoid) is described. >
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Persistent magnetic coherence in magnets
Nature MaterialsWhen excited, the magnetization in a magnet precesses around the field in an anticlockwise manner on a timescale governed by viscous magnetization damping, after which any information carried by the initial actuation seems to be lost. This damping appears to be a fundamental bottleneck for the use of magnets in information processing.
T. Makiuchi +10 more
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Stereotactic and Functional Neurosurgery, 1996
Because of the complex shape of many brain structures, the ideal brain probe would be highly flexible and give the neurosurgeon the ability to independently and precisely control movement of the probe tip. A magnetic surgery system has been developed that implements this concept.
M A, Howard +5 more
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Because of the complex shape of many brain structures, the ideal brain probe would be highly flexible and give the neurosurgeon the ability to independently and precisely control movement of the probe tip. A magnetic surgery system has been developed that implements this concept.
M A, Howard +5 more
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Magnetic Monopoles in a Magnetic Universe
1984Large scale coherence of a cosmological magnetic field, independently of its strength, is incompatible with any detectable monopole flux. Consequently, the controversial evidence1 of a coherent magnetic field up to a redshift z ≃ 2 infers the most severe cosmological bound on present number density (no) and fluxes (F) of magnetic monopoles: \( n_O < 2 \
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Magnets and Magnetic Field Measurements
Science, 1955A L, Bloom, M E, Packard
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Magnetism and Magnetic Materials
2001Covering basic physical concepts, experimental methods, and applications, this book is an indispensable text on the fascinating science of magnetism, and an invaluable source of practical reference data. Accessible, authoritative, and assuming undergraduate familiarity with vectors, electromagnetism and quantum mechanics, this textbook is well suited ...
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