To learn the basics of Magnetic Nanoparticles, I recommend starting with fundamental textbooks that cover the relevant principles in solid-state physics and electromagnetism. Two highly regarded resources are:
"Introduction to Solid State Physics" by Charles Kittel, 8th Edition. This book provides a comprehensive introduction to the principles of solid-state physics, including the behavior of materials at the nanoscale. You can access the book through this link: Introduction to Solid State Physics.
"Introduction to Electrodynamics" by David J. Griffiths. Understanding electromagnetism is crucial for grasping the magnetic properties of materials, including magnetic nanoparticles. Griffiths' book offers a clear and concise introduction to the subject. You can find the book here: Introduction to Electrodynamics.
These resources provide a solid foundation for delving into the intricacies of magnetic nanoparticles and their behavior, making them essential reads for anyone venturing into this fascinating field of study.