Research level monograph on commercially important materials, of which video tape is just one application.The aim of this book is to provide an overview of magnetic ceramics. Their structure, preparation techniques, magnetic properties and applications are all discussed in depth. The book is an important contribution to the rapidly developing field.The aim of this book is to provide an overview of magnetic ceramics. Their structure, preparation techniques, magnetic properties and applications are all discussed in depth. The book is an important contribution to the rapidly developing field.The purpose of the book is to provide an up-to-date overview of the relevant aspects of ferrites, which cover a wide range of magnetic properties and applications such as high-frequency transformer cores, permanent magnet cements, microwave telecommunication devices, magnetic recording media and heads. The author takes an interdisciplinary approach to describe the structure, preparation techniques, magnetic properties, and applications of iron-based oxides; metallic magnetic materials are also covered in depth.Preface; Symbols; 1. Introduction; 2. The crystal structure of magnetic ceramics; 3. Preparation of magnetic ceramics; 4. Magnetic properties of ferrites; 5. Applications of ferrites; 6. Other magnetic materials; Index. This book fills a gap in modernizing and coordinating the available information. It should be appreciated by a large range of users, from graduate students to industrial researchers. Paul Hagenmuller, Materials Research Bulletin