Investigation of Mixed Electronic States in Dy3Fe5O12 Produced by Doping with Nickel

• Published in: Journal of cluster science 2024-02, Vol.35 (2), p.545-560
• Main Authors: Niruban Bharathi, R., Ramachandran, Tholkappiyan, Rekha, G.
• Format: Article
• Language: English
• Subjects: Anisotropy; Catalysis; Chemistry; Chemistry and Materials Science; Electron micrographs; Electron states; Fourier transforms; Garnets; Infrared spectroscopy; Inorganic Chemistry; Iron; Magnetic devices; Nanochemistry; Nanoparticles; Nickel; Nitrates; Optoelectronics; Original Paper; Photoelectrons; Physical Chemistry; Radiation; Rare earth elements; Spectrum analysis; Whiskers (metals); X ray photoelectron spectroscopy
• ISSN: 1040-7278; 1572-8862
• DOI: 10.1007/s10876-023-02494-9

Rare earth iron garnets are scientifically significant because the versatility of cation substitution in various geometrical locations results in adjustable and varied characteristics for magnetic devices and optoelectronics applications. In a rare earth iron garnet, such as Dy 3 Fe 5 O 12 , electronic states are very sensitive to substitutional effects. The objective of the current research was to synthesize garnet type-Dy 3 Fe 5 O 12 compound and optimal parameters of the hydrothermal method were determined. We present here a detailed experimental investigation of electronic states and their distribution across the sites in Dy 3 Ni x Fe 5-x O 12 compounds through X-ray photoelectron spectroscopy. Scanning electron micrographs demonstrated that nanoparticles with whiskers in morphology with the existence in soft agglomeration. The impact of nickel replacing the cubic formation of garnets was explored using X-ray diffraction and Fourier transform infrared spectroscopy. In addition, the Fe: Ni ratio affects the magnetization and anisotropy of Dy 3 Ni x Fe 5-x O 12 . This indicates that the magnetism of rare-earth iron garnet can be greatly tuned by customizing its composition leading to use in a wide range of applications. Graphical Abstract