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Spinels
In this book, the authors discuss the occurrences, physical properties and applications of spinels. Topics include optical spectroscopy of transition metals in a-ZnAl2S4 wide band gap semiconductors; development of spinel NiZn ferrites for power field applications; spinel ferrites as catalysts for light alkanes combustion; application of magnesium spinel nanometric coating on aluminum oxide as an ionizing radiation sensor for personal and environmental dosimetry; chromium spinel oxides in high magnetic fields; the structural behavior of natural Cr-bearing spinels compared with synthetic ones; negative temperature coefficient thermistors based on spinel-type ceramics; and synthesis of high surface area MgAl2O4 spinel particles by a new method.
Spinel Nanoferrites
This book highlights the complexity of spinel nanoferrites, their synthesis, physio-chemical properties and prospective applications in the area of advanced electronics, microwave devices, biotechnology as well as biomedical sciences. It presents an overview of spinel nanoferrites: synthesis, properties and applications for a wide audience: from beginners and graduate-level students up to advanced specialists in both academic and industrial sectors. There are 15 chapters organized into four main sections. The first section of the book introduces the readers to spinel ferrites and their applications in advanced electronics industry including microwave devices, whereas the second section mainly focus on the synthesis strategy and their physio-chemical properties. The last sections of the book highlight the importance of this class of nanomaterials in the field of biotechnology and biomedical sector with a special chapter on water purification.
Advanced Spinel Ferrite Nanocomposites for Electromagnetic Interference Shielding Applications
Advanced Spinel Ferrite Nanocomposites for Electromagnetic Interference Shielding Applications presents recent developments in advanced spinel ferrite nanocomposites for electromagnetic interference shielding, including microwave absorption applications. The book includes the basics of shielding mechanisms, synthesis of advanced nanocomposites, and characterization, as well as results analysis. It also discusses the relationship between nanocomposite structure and physical properties. The book systematically explores how spinel ferrite nanoparticle composites are utilized with polymer, carbon source materials (carbon nanotube, graphene, etc.), metal nanoparticles, metal oxide nanoparticles, ...
Electronic, Magnetic, and Thermoelectric Properties of Spinel Ferrite Systems
This book explores magnetic properties and critical temperatures in inverse ferrite Fe3+(M2+Fe3+)O4 spinels (e.g., Fe, Co, Ni). It calculates transition and Curie Weiss temperatures, providing insights into their thermodynamic behavior. Using the full potential linearized augmented plane wave (FP-LAPW) method, it investigates electrical and magnetic structures of spinel chromite, revealing magnetic moments in MnCr2S4. Seebeck coefficient and electrical conductivity are also calculated. Advanced techniques like Monte Carlo, DFT+U, and FLAPW analyze magnetic characteristics of LiMn1.5Ni0.5O4 and electronic/magnetic structures of Fe3O4. High-temperature series expansions calculate Néel temperature and critical exponents, while GFT determines thermal magnetization and susceptibility. The analysis exposes exchange interactions' effects on magnetic order and introduces asymmetric phases in ferrimagnetic spinel systems. This book serves as an invaluable resource for researchers, academics, and enthusiasts seeking a comprehensive understanding of magnetic properties and critical phenomena within diverse spinel materials.
