Role of Ce concentration on the structural and magnetic properties of functional magnetic oxide particles

Abstract

Functional magnetic oxide particles offer exceptional GHz frequency capabilities which can significantly enhance the utility of communication and signal processing devices. In the present work, we have investigated the structural...

TiO2–CeO2/Ag Composite as Electrode Material for Supercapacitors

“…Overlapping of particles, leading to junction formation is clearly seen in these images. As seen in Figure c, the interplanar d spacing values determined for two interconnected particles are found to be 0.317 and 0.34 nm that correspond to the (111) plane of CeO 2 and (111) plane of TiO 2 , respectively . The polycrystalline nature of the material is evident from the sharp diffraction ring visible in the specified area electron diffraction pattern (Figure d).…”

“…As seen in Figure 2c, the interplanar d spacing values determined for two interconnected particles are found to be 0.317 and 0.34 nm that correspond to the (111) plane of CeO 2 and (111) plane of TiO 2 , respectively. 37 The polycrystalline nature of the material is evident from the sharp diffraction ring visible in the specified area electron diffraction pattern (Figure 2d). The surface morphology of the developed composites was studied using FESEM analysis, and the obtained results for TiO 2 −CeO 2 /Ag 2X and TiO 2 −CeO 2 are shown in Figure 3.…”

Static and dynamic magnetic properties of circular and square cobalt nanodots in hexagonal cells

“…In addition, cobalt is a magnetically hard material that can exhibit strong anisotropy, 19,20 so it can be considered as an ideal material for high-density non-volatile magnetic memories, since they offer the possibility of increasing storage density by reducing the size of magnetic bits without thermal fluctuations, thus offering more efficient magnetic memories. 19,21 On the other hand, the study of the dynamic properties of magnetic nanostructures has received increasing attention, offering emerging applications in spintronics-based devices such as magnetic random-access memories (MRAMs) for microwave signal processing, [22][23][24] spin-torque nano-oscillator (STNO) 23,25,26 and spin-current nano-oscillators (SCNO). 27,28 In this sense, a recent report on the study of SCNO devices by means of micromagnetic simulations shows the feasibility in the development of sensitive frequency-based nano-biosensors for detecting single magnetic nanostructures.…”

“…On the other hand, the study of the dynamic properties of magnetic nanostructures has received increasing attention, offering emerging applications in spintronics-based devices such as magnetic random-access memories (MRAMs) for microwave signal processing, 22–24 spin-torque nano-oscillator (STNO) 23,25,26 and spin-current nano-oscillators (SCNO). 27,28 In this sense, a recent report on the study of SCNO devices by means of micromagnetic simulations shows the feasibility in the development of sensitive frequency-based nano-biosensors for detecting single magnetic nanostructures.…”

Magnetic properties, magnetocaloric effect, and critical behaviors in Co1−xCrxFe2O4

“…Over the past few decades, research on iron oxide compounds like spinel ferrite, hexaferrite, and garnet has become a topic of discussion among scientists, due to their attractive practical applications in magneto-sensing devices, and biotechnology. [1][2][3][4][5][6][7] These key topics attracted scientists because these types of compounds exhibit unique magnetic and magnetocaloric effects (MCE). [1][2][3][8][9][10] Among all the ferrites, CoFe 2 O 4 (COF) has been focused on in recent years by academia, the medical sector, and industry due to its remarkable magnetic and MCE properties.…”