This book explores magnetic properties and critical temperatures in inverse ferrite Fe(MFe)O 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 MnCrS. Seebeck coefficient and electrical conductivity are also calculated. Advanced techniques like Monte Carlo, DFT+U, and FLAPW analyze magnetic characteristics of LiMn.Ni.O and electronic/magnetic structures of FeO. 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.

Features advanced techniques (Monte Carlo, DFT+U, FLAPW) for analyzing magnetic characteristics Offers a valuable resource for a deeper understanding of critical phenomena and magnetic order Presents a comprehensive exploration of magnetic properties and critical temperatures in Fe3+(M2+Fe3+)O4 spinels

Autorentext

Professor Rachid Masrour, from Morocco, is a research professor in the Faculty of Sciences at Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco. Dr. Rachid Masrour completed his Ph.D. in March 2006 at the same university. His research interests lie in the area of Condensed Matter Physics, Material Sciences, Materials for energy, and Magnetism. He has 340 articles published in the Web of Science and 10 book chapters published in international journals. He is the editor of 4 books and the author of 2 books with an h-index of 34. He participated in more than 100 Moroccan and international congresses. He's a referee for several articles and also an Editorial Board Member in different international journals. He has collaborated extensively with laboratories from abroad. He was honored with the International Association of Advanced Materials Young Scientist Medal in recognition of his contribution to "Magnetism, Electromagnetism, and Spintronics" and delivered a lecture at the Advanced Materials World Congress on October 11 - 14, 2022. He is one of the world's most cited top scientists in material physics (top 2%, Stanford University Ranking, US, 2020). He received the Best Oral Presentation Award for MCGPD-2021, by the Indian Association for Crystal Growth & Indian Science and Technology Association International Organization for Crystal Growth, July 5-8, 2021. He received the Outstanding Scientist Award (VDGOOD PROFESSIONAL ASSOCIATION, February 15, 2020, India). It was among the most critical in 2020 by Elsevier.

Inhalt

Exchange interactions types in magnetic materials.- Computational methods: Ab Initio calculations and Monte Carlo simulations.- Thermoelectric and spin-lattice coupling in a MnCr 2 S 4 ferrimagnetic spinel.- Magnetic properties of LiMn 1.5 Ni 0.5 O 4 spinel: Ab initio calculations and Monte Carlo simulation.