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Magnetic nanostructures with perpendicular magnetic anisotropy (PMA), as compared with the spin valves with in-plane anisotropy, have a lower level of thermal magnetization noise due to the high value of PMA, as well as a lower critical current density required for magnetization reversal nanostructures [1, 2].
Magnetic nanoparticles have attracted broad attention due to their potential biomedical applications, such as contrast agents for magnetic resonance imaging (MRI), heating mediators for cancer therapy (hyperthermia), and magnetic labels for biosensing. For nanoparticles to be utilized for biomedical applications these nanoparticles must acquire superparamagnetic behavior with relatively high value...
Magnetic nanostructures have attracted a great deal of attention during the last decade because of their prospective applications not only in microwave absorption, high density recording media, and biosensor applications but also in functional micro and nanodevices [1-4]. Recently, significant investigations have been motivated to get excess of 1Tbit/in2 in magnetic storage devices but at smaller...
Magnetic tunneling junctions (MTJ) have been widely used in magnetic random access memory (MRAM) and magnetic sensors for the large magnetoresistance (TMR). [1, 2] One of the major issues for high sensitivity sensors is to obtain a low switching field (Hsw). Recently various ferromagnetic metals with low Hsw, such as NiFe [3, 4] and amorphous CoFeSiB [5], have been selected as the sensing layer in...
Sm 3 (Fe,Mo) 29 N x nitride has been synthesized at 823 K for 2.5 h by gas phase reaction under 1 atm of nitrogen. The nitride retains the structure of parent compound. The unit cell volume of the nitride is 4.7% greater than that of the parent compound. Introduction of nitrogen leads to an increase of Curie temperature T c from 445 K for the parent to 704 K for...
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