Magnetic Properties of 3d and 4f Ferromagnets Studied by X
... dominated by interfaces rather than volume show new magnetic properties. However, many questions about the fundamental mechanisms leading to these properties remain unsolved. It is crucial to identify the contribution of each element contained in such materials and to determine the spin and orbital ...
... dominated by interfaces rather than volume show new magnetic properties. However, many questions about the fundamental mechanisms leading to these properties remain unsolved. It is crucial to identify the contribution of each element contained in such materials and to determine the spin and orbital ...
A Nonlinear Magnetic Controller for Three-Axis
... The problem of magnetic control for three-axis stability of a spacecraft is examined. Two controllers, a proportional-derivative controller and a constant coefficient linear quadratic regulator, are applied to the system of equations describing the motion of the spacecraft. The stability of each is ...
... The problem of magnetic control for three-axis stability of a spacecraft is examined. Two controllers, a proportional-derivative controller and a constant coefficient linear quadratic regulator, are applied to the system of equations describing the motion of the spacecraft. The stability of each is ...
Plasma Density Features Associated with Strong Convection in the
... We combined a simple plasma convection model with an ionospheric-atmospheric composition model in order to study the plasma density features associated with strong convection in the winter high-latitude F region. Our numerical study produced time-dependent, three-dimensional, ion density distributio ...
... We combined a simple plasma convection model with an ionospheric-atmospheric composition model in order to study the plasma density features associated with strong convection in the winter high-latitude F region. Our numerical study produced time-dependent, three-dimensional, ion density distributio ...
Magnetic Interactions in Low-Dimensional Iron Nanostructures
... K, which is greatly suppressed from its bulk value of 29 K and is consistent with our theory prediction. This approach offers a new angle to experimentally probe the Kondo screening cloud. Magnetization Reversal in Transition-metal/Fe:SiO2 Thin Films —A novel way has been proposed to improve the per ...
... K, which is greatly suppressed from its bulk value of 29 K and is consistent with our theory prediction. This approach offers a new angle to experimentally probe the Kondo screening cloud. Magnetization Reversal in Transition-metal/Fe:SiO2 Thin Films —A novel way has been proposed to improve the per ...
Physics of Magnetism and Magnetic Materials
... More serious efforts to use the power hidden in magnetic materials were made only much later. For instance, in the 18th century smaller pieces of magnetic materials were combined into a larger magnet body that was found to have quite a substantial lifting power. Progress in magnetism was made after ...
... More serious efforts to use the power hidden in magnetic materials were made only much later. For instance, in the 18th century smaller pieces of magnetic materials were combined into a larger magnet body that was found to have quite a substantial lifting power. Progress in magnetism was made after ...
Gas Ejection from Spiral Galaxy Disks Jeremy Durelle
... less than a kiloparsec with a flow velocity of 41 km s−1 into the halo after 167 Myr. The latter models proved to be effective mechanisms through which gas is ejected from the disk whereas the Hartmann flow (or toy model) mechanism remains unclear as the heliocentric velocity profile becomes unstabl ...
... less than a kiloparsec with a flow velocity of 41 km s−1 into the halo after 167 Myr. The latter models proved to be effective mechanisms through which gas is ejected from the disk whereas the Hartmann flow (or toy model) mechanism remains unclear as the heliocentric velocity profile becomes unstabl ...
MAGNETIC FIELDS IN NEUTRON STARS Daniele Viganò
... universe. The extreme physical conditions met inside these astronomical sources complicate their theoretical study, but, thanks to the increasing wealth of radio and X-ray data, great advances have been made over the last years. A neutron star is surrounded by magnetized plasma, the so-called magnet ...
... universe. The extreme physical conditions met inside these astronomical sources complicate their theoretical study, but, thanks to the increasing wealth of radio and X-ray data, great advances have been made over the last years. A neutron star is surrounded by magnetized plasma, the so-called magnet ...
Neutron magnetic moment
The neutron magnetic moment is the intrinsic magnetic dipole moment of the neutron, symbol μn. Protons and neutrons, both nucleons, comprise the nucleus of atoms, and both nucleons behave as small magnets whose strengths are measured by their magnetic moments. The neutron interacts with normal matter primarily through the nuclear force and through its magnetic moment. The neutron's magnetic moment is exploited to probe the atomic structure of materials using scattering methods and to manipulate the properties of neutron beams in particle accelerators. The neutron was determined to have a magnetic moment by indirect methods in the mid 1930s. Luis Alvarez and Felix Bloch made the first accurate, direct measurement of the neutron's magnetic moment in 1940. The existence of the neutron's magnetic moment indicates the neutron is not an elementary particle. For an elementary particle to have an intrinsic magnetic moment, it must have both spin and electric charge. The neutron has spin 1/2 ħ, but it has no net charge. The existence of the neutron's magnetic moment was puzzling and defied a correct explanation until the quark model for particles was developed in the 1960s. The neutron is composed of three quarks, and the magnetic moments of these elementary particles combine to give the neutron its magnetic moment.