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Metamagnetism, a sudden increase in the magnetization of a material with a small change of external magnetic field, are calling more attentions because of their rich magnetic phenomena and scientific significance [1][2]. There are quite different physical causes for different types of metamag-nets. In this work, metamagnetism has been found in arc-melting Sm(Ni0.5Fe0.4Cu0.1)7. The physical property...
Strongly correlated electron systems, especially the perovskite oxides with the general formula ABO3, have been studied for some decades due to their intriguing properties such as magnetism, mutiferroicity, ferroelectricity, colossal magnetoresistence and superconductivity [1]. In light of the previous studies of ABO3, A-site and B-site doping in these systems can lead to different crystal structures,...
The anisotropic hot-deformed (HDed) Nd-Fe-B magnets have attracted much attention for their remarkable magnetic properties and various applications due to the ultrafine grained microstructure. Hot deformation process usually consists of two subprocesses, hot pressing and die-upsetting. During this process, the initially isotropic nanocrystals in melt spun flakes transform to laterally elongated platelet-shaped...
Rapid thermal annealing (RTA) techniques have been widely used in materials engineering. Recently, use of RTA has also considered as an efficient way to control the crystal structure and microstructure of the magnetic materials. L10 FePt and FePd have been drawn much attention due their remarkable magnetocrystalline anisotropy (> 107 erg/cm3) [1]. Generally, as-prepared FePt and FePd thin films...
Hard magnetic layers have been motivated in the development of microelectromechanical systems (MEMS) components such as micro-actuators, field generators, and micro-motors. Electrodeposition (ED) has been an efficient and cost-effective way to fabricate these magnetic components due to its fast deposition rate and compatibility with lithographic patterns. Electrodeposited CoNiP layers exhibit high...
The magnetic properties bulk nanograin composite Nd-Fe-B/Fe-Co magnets is enhanced reducing the size and improving the distribution of the soft phase throughout the magnet. This was achieved through various coating technologies applied to coat melt-spun micrometer-sized Nd-Fe-B powder particles with thin alpha-Fe or Fe-Co layers. These coating techniques include sputtering, pulsed laser deposition,...
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