Role of Fe doping on surface morphology, electronic structure and magnetic properties of Fe doped CeO2 thin film

Investigating the Vibrational, Magnetic and Dielectric Properties, and Antioxidant Activity of Cerium Oxide Nanoparticles

“…Some magnetic parameters, namely saturation magnetization, remanent magnetization (Mr) and coercivity (He), were estimated from the M-H curve to have the following values: 8.0 × 10 −5 emu/g, 2.8 × 10 −5 emu/g and 116.9 Oe, respectively. These values are comparable to those of some earlier reported data for pure cerium oxide or doped cerium oxide nanoparticles [11,43,55,56]. From our XPS analysis, the development of oxygen vacancies on the nanostructure surface and the presence of Ce 3+ ions were confirmed [42].…”

Structural, Optical, Magnetic and Electrochemical Properties of CeXO2 (X: Fe, and Mn) Nanoparticles

“…The undoped CeO 2 has the lowest Ms value ~1.5 × 10 −4 emu/g which changes after doping and shows the maximum value for Fe-doped CeO 2 nanoparticles. Although there have been numerous theoretical and experimental investigations on RTFM in these oxides [ 7 , 8 ], there is still great controversy regarding the ferromagnetic ordering in these oxides with rare earth and transition metal cation doping and its correlation to the formation of defects and oxygen vacancies. The main condition in CeO 2 for the observation of ferromagnetic behavior is its tendency towards oxygen non-stoichiometry.…”

“…Ceria (CeO 2 ) is one of the most extensively probed potential candidates due to its fundamental chemical and physical properties [ 4 , 5 ]. However, the properties of CeO 2 can be easily tailored simply by adding suitable dopant ions into the host lattice for various technological applications such as spintronics [ 6 , 7 , 8 , 9 ], electrode materials for supercapacitors [ 10 , 11 , 12 ], a solid oxide fuel cell [ 13 ], and antimicrobial agents [ 4 ]. From this perspective, cerium oxide (CeO 2 ) appears to be a potential candidate due to its redox properties, which are associated with the reversible oxidation states of cerium (Ce 3+ /Ce 4+ ).…”

“…Additionally, the electrochemical properties and charge transport of CeO 2 based electrodes can be positively modified by doping with various transition metals. The addition of a small fraction of transition metal ions in the CeO 2 matrix has been found to modify various properties, including the electrochemical activity of the resulting material [ 7 , 27 , 28 ]. The transition metal doping reduces the crystallite size in CeO 2, resulting in an enhancement of the surface-to-volume ratio.…”

Study of electronic and optical response of Zn-CeO2 using first principle and experimental investigations

“…It has also been successfully used in ultraviolet filtration, and electrochromic (EC) displays [6]. CeO 2 presents a significant magnetic moment which makes it prominent functional material for spintronic devices such as sensors, spin valves, non-volatile memory, and data storage, etc [7]. It has also been a potential alternative candidate to standard SiO 2 based silicon-on-insulator technology [3].…”