In this study we investigate the electronic structure and magnetism of transition metal (TM

A single slab in which one Ni(001) atom layer embedded between two of four Rh layers is considered to examine the oscillation of magnetic moment in each layer. The all electron total-energy full-potential linearized augmented plane wave(FLAPW) method was used to calculate the spin densities, magnetic moments, density of states(DOS), and the number of electrons within each muffin-tin(MT) sphere. The magnetic moment of the center layer Ni(C) in the system of 4Rh/Ni/4Rh is calculated to be 0.34, which is 40% have magnetic moment at the interface layers by strong band hybridization with Ni(C) when Ni(001) monolayers is inserted, and the magnetic moment shows a damped oscillation as we go from center Ni(C) layer to the surface Rh(S). From the calculated density of states, it is found that the Fermi level shifts inside the energy band of the Ni(C) in affection of Rh(001).

The amorphous alloy after neutron irradiation are studied hysteresis loop and complex permeability measurements. The total integration fluence of fast neutrons is varied from to . After neutron irradiation, the imaginary part of complex permeability in low frequency region decreased due to the decrease of wall motion, but the permeability in high frequency region increased due to the enhancement of rotational magnetization. The measurement of hysteresis loop showed the increase of magnetic softness, related to rotational magnetization, but saturation magnetization was decreased in neutron irradiation sample.ᡫ�⨀填�⨀Ȁ填�⨀火�⨀Ȁ火�⨀衫�⨀☀衫�⨀�⨀Ȁ�⨀塬�⨀Ȁ塬�⨀쁬�⨀Ȁ쁬�⨀⡭�⨀Ȁ⡭�⨀ꁿ�⨀Āꁿ�⨀၀?⨀̀၀?⨀遭�⨀܀遭�⨀顭�⨀Ԁ顭�⨀끭�⨀܀끭�⨀롭�⨀Ԁ롭�⨀꡾�⨀Ȁ꡾�⨀顾�⨀Ȁ顾�⨀뀿?⨀؀뀿?⨀聾�⨀Ȁ聾�⨀ꁾ�⨀Ȁꁾ�⨀젿?⨀Ȁ젿?⨀衿�⨀Ā衿�⨀頿?⨀Ȁ頿?⨀耿?⨀Ȁ耿?⨀栿?⨀Ȁ栿?⨀倿?⨀Ȁ倿?⨀避�⨀Ȁ避�⨀顿�⨀Ȁ顿�⨀ࢿ�⨀Ȁࢿ�⨀ᢿ�⨀Ȁᢿ�⨀₿�⨀Ā₿�⨀?⨀Ȁ?⨀

The influence of partial pressure on saturation mgnetization, coercivity, anisotropy field and effective permeability (over 1GHz) of as-deposited Co-Fe-Al-O thin films, which were fabricated by RF magnetron reactive sputtering method, were investigated. The thin film fabricated at partial pressure of 4% exhibits the best magnetic softness with saturation magnetization 4Ms of 18.1 kG, coercivity of 0.82 Oe, anisotropy field () of Oe, and effective permeability () about 1,024 above 1 GHz. the electrical resistivity of Co-Fe-Al-O thin films were increased with increasing partial pressure, the electrical resistivity of thin film with the best soft magnetic properties was 560.7 am. Therefore, It is assumed that the good soft magnetic properties of thin film results from high electrical resistivity and large anisotropy field.

This work is to present each properties and the interfacial characterization between PZT layer and LSMO layer of PZT/LSMO/Pt. LSMO thin film grown by KrF(248 nm) excimer lasers are used in pulsed in pulsed laser deposition(PLD). PZT coposites thin films were deposited by spin coating using a commercial resist spinner. LSMO thin film by deposition oxygen pressure 125 mtorr have rhombohedral structure on Pt(111) substrate. The PZT/LSM/Pt pre-orientate to [111] direction. The final thin films were shown that magnetic and electric property was typical value, respective. We report that the lattice between the PZT/LSMO thin film and the substrate plays a very important role and may control to another effects.

Magnetic properties of YIG films grown by solid phase epitaxy (SPE) was measured as a function of temperature with focus on magneto-crystalline and perpendicular magnetic anisotropy. Perpendicular magnetic anisotropy was not induced in the SPE YIG films annealed at low temperature by relaxing residual stress through formation of dislocation. On the contrary the films annealed at high temperature showed perpendicular magnetic anisotropy which shows very low density of dislocation. Perpendicular magnetic anisotropy field decreased linearly up to a high temperature of above which magneto-crystalline anisotropy disappeared. Coercivity also decreased linearly with temperature up 세 . Magneto-crystalline anisotropy of perpendicular anisotropy induced epitaxial (111) YIG films can be measured using $H_k

Recently, It has been reported that the spin sprayed ferite film shows better magnetic properties at high frequeny that the ferrite by co-firing over . Besides, there is no limitation to select the substrate materials because it can be processed with relatively low temperature below . Therefore, we fabricated film inductor as a passive device for DC-DC converter by a use of spin sprayed embedded form was completed by via hole process of pad opening. Saturation magnetization of 0.61 T and real part of permeability of 110 were obtained in Ni-Zn ferrite. In addition, inductance of 1.52 , quality factor of 24.3 at 5 MHz were measured with spiral 16 turn inductor. The rated current of inductor was 863 mA.

We prepared water-based magnetic fluids with the spent iron oxide catalysts which were used in the styrene monomer production process. The catalyst was composed with 70% magnetite and alkali metals. The water-based magnetic fluids were prepared by mechanical grinding with olecic acid as a surfactant and water in an attritor. The magnetization of the water-based magnetic fluids was 22 emu/g in the 10 kOe.

Nanocrystalline Nd-Fe-B powder was synthesized by a new thermochemical process that combined with past reduction-diffusion process and spray-dry process. In this process, Ca reduction process is vary important due to formation of hard magnetic phase from various oxides by Ca powder. Therefore, the final products are essentially affected a shape, size, and composition etc. of the Ca reduced powders. Ca reduction was performed to way that raw powders just mixed with Ca powder in proper ratio unlike to compress into compact. The powders after mixture-type Ca reduction mainly composited with phase even relativily low reaction temperature () and all particle size of powder were distributed less than 1 except for powder after Ca oxides as magnetic properties of powders after cake-type Ca reduction, with the consequence that high magnetic properties has been expected. The magnetic properties of powders prepared by mixture-type Ca ruduction, with the conseqence that high magnatic properties has been expected. The magnetic properties of powders prepared by mixture-type Ca reduction process showed

This paper describes a current sensor for precision current measurement of an electronic watt-hour meter that is going to install in houses in the future. As the current sensor is based on an cored principle (the Rogowski principle) it is not subject to usual limitations of saturation and non-linearity of general current transformers. An advantage of the developed current sensor is that non-linearity error in low current range is improved and the construction can be kept simple using an air core. We present a magnetic field analysis of the sensor using a finite-element solver. We compared the measured values versus the calculated values.