The superparamagnetic thin films with a granular structure show characteristic magnetization curve. In this study, Co-Al2O3 were fabricated by the sputtering method normal DC source for Co deposition, RF Al2O3 and pulsed reactive used fabrication of non-magnetic matrix oxide or nitride Al Si. As result, high could be obtained deposition rate. Very rate was Si using method. This 5 times larger t...

We have measured the angular dependence of ferromagnetic resonance (FMR) spectra for Fibonacci-distorted, Kagome artificial spin ice (ASI). The number strong modes in FMR depend on orientation applied DC magnetic field. In addition, discontinuities observed field-frequency dispersion curves also field orientation, and signal a multi-step magnetization reversal, which is caused by reduced energy...

We have investigated the multiferroicity and magnetoelectric (ME) coupling in $\mathrm{Ho}\mathrm{Fe}\mathrm{W}{\mathrm{O}}_{6}$. With a noncentrosymmetric polar structure (space group Pna${2}_{1}$) at room temperature, this compound shows an onset of electric polarization with antiferromagnetic ordering N\'eel temperature (${T}_{N}$) 17.8 K. The magnetic properties polycrystalline samples were...

We report the direct soft chemical synthesis and characterization of a family of face centered cubic (fcc) and partially ordered face centered tetragonal (fct) FePt nanoparticles (NPs) suitable for biomedical applications. Both fcc and partially ordered fct-FePt NPs are synthesized by employing a simple polyol method. By using polyvinyl pyrolidone (PVP) as a stabilizer in various ratios during ...

We report the direct soft chemical synthesis and characterization of a family of face centered cubic (fcc) and partially ordered face centered tetragonal (fct) FePt nanoparticles (NPs) suitable for biomedical applications. Both fcc and partially ordered fct-FePt NPs are synthesized by employing a simple polyol method. By using polyvinyl pyrolidone (PVP) as a stabilizer in various ratios during ...

Andesitic pumice erupted in 1985 from Nevado del Ruiz volcano (Colombia) has been magnetized in opposite direction t o the present geomagnetic field. This self-reversal is probably due t o an exchange mechanism between two phases of the haematite-ilmenite series, which is similar to the magnetic coupling observed in synthetically grown antiferromagnetic-ferromagnetic FeMn-FeNi films produced un...

Co$_{3}$Sn$_{2}$S$_{2}$ (CSS) is one of the shandite compounds and becomes a magnetic Weyl semimetal candidate below ferromagnetic phase transition temperature ($\textit{T}_\textrm{C}$). In this paper, we investigate ($\textit{T}$) dependence conversion between charge current spin for CSS thin film by measuring spin-torque resonance (ST-FMR) trilayer consisting / Cu CoFeB. Above $\textit{T}_\te...