The physics of manganites: Structure and transport
... important advantage of not being limited to low temperatures. Spin-valve devices have been used in the magnetic storage industry for several years now, in the form of magnetoresistive read heads. While the physical mechanism that produces the magnetoresistance is well understood, the technological c ...
... important advantage of not being limited to low temperatures. Spin-valve devices have been used in the magnetic storage industry for several years now, in the form of magnetoresistive read heads. While the physical mechanism that produces the magnetoresistance is well understood, the technological c ...
Paper 3 (pdf)
... i.e. B = m2 c3 /eh̄ (=4.4×1013 G for electrons). In these ultrastrong magnetic fields, peculiar and hitherto unobserved effects of quantum electrodynamics (QED) are predicted to have a profound effect on the X-ray spectra and polarization that can be tested with soft X-ray polarimetry. Measuring the ...
... i.e. B = m2 c3 /eh̄ (=4.4×1013 G for electrons). In these ultrastrong magnetic fields, peculiar and hitherto unobserved effects of quantum electrodynamics (QED) are predicted to have a profound effect on the X-ray spectra and polarization that can be tested with soft X-ray polarimetry. Measuring the ...
the formation of giant molecular clouds
... similar to that of giant molecular clouds in the solar neighborhood on a timescale of < ∼ 10 yr. The evolution of an initially azimuthal magnetic field is followed in the limit that the field is weak. Collapse occurs perpendicular to the field lines, so that the magnetic pressure ∝ ρ2 . Chapter 4 co ...
... similar to that of giant molecular clouds in the solar neighborhood on a timescale of < ∼ 10 yr. The evolution of an initially azimuthal magnetic field is followed in the limit that the field is weak. Collapse occurs perpendicular to the field lines, so that the magnetic pressure ∝ ρ2 . Chapter 4 co ...
The Fields Outside a Long Solenoid with a Time
... current appears to the observer as that due only to the portion of the surface nearest the observer. In this limit the effective current is at right angles to the axis of the solenoid and its magnitude is arbitrarily small (the time being arbitrarily close to zero at the source). This problem was als ...
... current appears to the observer as that due only to the portion of the surface nearest the observer. In this limit the effective current is at right angles to the axis of the solenoid and its magnitude is arbitrarily small (the time being arbitrarily close to zero at the source). This problem was als ...
IOSR Journal of Applied Physics (IOSR-JAP)
... widely used in gas sensors, transparent conductors, piezoelectric application, and as antimicrobial agents. Nanocrystalline powders, due to their average particle size of less than 100 nm may show different behaviours resulting from higher surface energy due to the large surface area and the wide ga ...
... widely used in gas sensors, transparent conductors, piezoelectric application, and as antimicrobial agents. Nanocrystalline powders, due to their average particle size of less than 100 nm may show different behaviours resulting from higher surface energy due to the large surface area and the wide ga ...
paper
... switching originating from intermolecular interactions (19). However, obtaining simultaneous ferroic orders and room temperature ME coupling properties in CT complexes remains challenging and represents an important topic in material chemistry and condensed matter science (20, 21), especially for th ...
... switching originating from intermolecular interactions (19). However, obtaining simultaneous ferroic orders and room temperature ME coupling properties in CT complexes remains challenging and represents an important topic in material chemistry and condensed matter science (20, 21), especially for th ...
Solar Flares: Magnetohydrodynamic Processes | SpringerLink
... layers extending from the chromosphere to the corona. In the extreme case, even the photosphere responds to a big flare, observed as white-light brightenings. Also a flare produces high-energy particles which travel through the interplanetary space, sometimes having a severe impact on the environmen ...
... layers extending from the chromosphere to the corona. In the extreme case, even the photosphere responds to a big flare, observed as white-light brightenings. Also a flare produces high-energy particles which travel through the interplanetary space, sometimes having a severe impact on the environmen ...
“Hidden” Momentum in a Magnetized Toroid 1 Problem 2
... Perhaps the earlier variant of the present problem was given in 1952, when Cullwick [25] briefly mentioned a charged particle moving along the axis of a toroidal magnet as an example where electromagnetic field momentum should be considered along with the mechanical momentum of the charged particle. T ...
... Perhaps the earlier variant of the present problem was given in 1952, when Cullwick [25] briefly mentioned a charged particle moving along the axis of a toroidal magnet as an example where electromagnetic field momentum should be considered along with the mechanical momentum of the charged particle. T ...
Java Based Distributed Learning Platform
... The HCHO will react with (NH2OH)3, H3PO4 in the tube and then produce H3PO4 and HCH=NOH in which the color change yellowish orange for reddish orange. The measuring range of the detector tube is 0.05-2.00 ppm and the detecting limit is 0.005 ppm. The content of formaldehyde in the reactor is reduced ...
... The HCHO will react with (NH2OH)3, H3PO4 in the tube and then produce H3PO4 and HCH=NOH in which the color change yellowish orange for reddish orange. The measuring range of the detector tube is 0.05-2.00 ppm and the detecting limit is 0.005 ppm. The content of formaldehyde in the reactor is reduced ...
magnetism - Supercharged Science
... from chemical splatter, explosions, and tiny fast-moving objects aimed at the eyes. If you wear glasses, you can find goggles that fit over them. Don’t substitute eyeglasses for goggles, because of the lack of side protection. Eyeglasses don’t provide this important side eye protection. Clean up Mes ...
... from chemical splatter, explosions, and tiny fast-moving objects aimed at the eyes. If you wear glasses, you can find goggles that fit over them. Don’t substitute eyeglasses for goggles, because of the lack of side protection. Eyeglasses don’t provide this important side eye protection. Clean up Mes ...
Ferrofluid
A ferrofluid (portmanteau of ferromagnetic and fluid) is a liquid that becomes strongly magnetized in the presence of a magnetic field.Ferrofluid was invented in 1963 by NASA's Steve Papell as a liquid rocket fuel that could be drawn toward a pump inlet in a weightless environment by applying a magnetic field.Ferrofluids are colloidal liquids made of nanoscale ferromagnetic, or ferrimagnetic, particles suspended in a carrier fluid (usually an organic solvent or water). Each tiny particle is thoroughly coated with a surfactant to inhibit clumping. Large ferromagnetic particles can be ripped out of the homogeneous colloidal mixture, forming a separate clump of magnetic dust when exposed to strong magnetic fields. The magnetic attraction of nanoparticles is weak enough that the surfactant's Van der Waals force is sufficient to prevent magnetic clumping or agglomeration. Ferrofluids usually do not retain magnetization in the absence of an externally applied field and thus are often classified as ""superparamagnets"" rather than ferromagnets.The difference between ferrofluids and magnetorheological fluids (MR fluids) is the size of the particles. The particles in a ferrofluid primarily consist of nanoparticles which are suspended by Brownian motion and generally will not settle under normal conditions. MR fluid particles primarily consist of micrometre-scale particles which are too heavy for Brownian motion to keep them suspended, and thus will settle over time because of the inherent density difference between the particle and its carrier fluid. These two fluids have very different applications as a result.