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Magnetic Beads With High Saturation Magnetization
IEEE Transactions on Magnetics, 2007Magnetic beads with the core-shell structure of an iron core encapsulated by titanium oxide and silica shell layers were prepared. The beads, HMM-beads, exhibited soft magnetic properties with high magnetization of 105 Amiddotm2/kg and low coercitivity of ~4 kA/m. HMM-beads with a diameter of 3 mum showed DNA isolation performance comparable to that of
Yasushi Kaneko +4 more
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Selective saturation in magnetization transfer experiments
Magnetic Resonance in Medicine, 1994AbstractThe concept of magnetic saturation in single and binary spin systems is essential to the understanding of magnetization transfer experiments. This paper outlines the requirements for selective magnetic saturation of either of two spin pools contained in a mixture, both having identical chemical shifts. Following a brief discussion of saturation
J C, McGowan, J S, Leigh
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Magnetization Near Saturation in Polycrystalline Ferromagnets
Physical Review, 1941An important mechanism involved in the variation of the magnetization of ferromagnets near saturation is the rotation of the magnetization vector under the combined influence of the magnetic field and crystalline anisotropy torques. The effect of this mechanism in polycrystalline specimens has been calculated by Akulov and Gans; their result is ${M}_ ...
Holstein, T., Primakoff, H.
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Self-saturation in magnetic amplifiers
Electrical Engineering, 1949SATURABLE reactors, in their simpler forms, have been used in controlling many types of equipment. As is known, control is effected by adjustment of the reactor impedance with d-c premagnetization. The a-c windings are so connected that no fundamental component of power-frequency voltage appears in the d-c control winding.
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On the saturation field of magnets
Journal of Magnetism and Magnetic Materials, 2004Three small comments on the saturation field for magnetization curves of magnets are noted. The saturation field is generally formulted for magnets with translational invariance, so that one can calculate the coupling constant J of magnets from magnetization measurements up to the saturating point. An upperbound for more general cases and an inequality
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Discrete tracks for saturation magnetic recording
Proceedings of the IEEE, 1963Discrete-track recording is a magnetic-recording method which employs a single-gap head and a discrete-track medium to increase the head-repositioning tolerance in saturation digital recording. A head with a conventional ring structure may be used. The recording medium consists of discrete magnetic tracks separated by nonmagnetic lands.
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A saturation velocity magnetic sensor
1981 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, 1981The saturation velocity operation of a silicon Hall device to achieve high magnetic sensitivity, independent of bias voltage and temperature, will be described.
Y. Takehana +3 more
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Approach to Saturation in Inhomogeneous Magnetic Materials
Journal of Applied Physics, 1971The Néel theory of the approach to saturation in inhomogeneous magnetic materials is critically reviewed. It is found that the theory is rigorously applicable when the local saturation magnetization differs only slightly from its spatial average, but that this condition is not satisfied in porous materials or in material containing inclusions of a ...
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