Magnetic Nanostructures is the first reference source that compiles up-to-date coverage of the latest and emerging research activities in the field of magnetic nanostructures for a wide range of readers. The first edition of this book containing twelve chapters was very useful for scientists working in the field of magnetic nanomaterials. In the second edition of this book, seven new review chapters on emerging new research topics related to magnetic nanostructures were added. Now, second edition of this book contains nineteen state-of-the-art review chapters written by leading authorities from top-notch academic and industrial institutions worldwide. The objective of this book is to provide a highly coherent coverage of magnetic nanostructures ranging from materials to device applications. This book cover a highly useful overview of topics related to nanostructured magnetic materials, their preparative methods, processing into nanoscale multilayers, thin films, particles, wires and dots, spectroscopic characterization, micro/nanostructures, physical properties and potential industrial-oriented applications such as magnetic data storage, magnetic sensors, magnetic tunnel junctions, random access memories, spintronic devices, etc. This book contains approximately 5,000 bibliographic citations and hundreds of illustrations, figures, tables, and equations. Each chapter is fully cross-referenced, introducing some of the most important nanotechnologies under development today. The scientific community working in the field of magnetic nanomaterials and magnetism will benefit from the latest information provided in second edition of this book.