Results 221 to 230 of about 93,126 (269)
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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. >
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
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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Magneto-optics in a van der Waals magnet tuned by self-hybridized polaritons
Nature, 2023Florian Dirnberger, Zdenek Sofer
exaly
A magnetic continuum in the cobalt-based honeycomb magnet BaCo2(AsO4)2
Nature Materials, 2022Thomas Halloran +2 more
exaly