The popularity of the First Edition of this book has been very gratifying. It confirms that there is a genuine need for a text covering the magnetic bubble technology. We are pleased that the readers have found that this book satisfies that need. It has been used as a text for courses in both universities and industry, and as a reference manual by workers active in the field. To meet the need for more copies of the book it seemed preferable to publish a second edition rather than merely a second printing. There has been some significant progress, even in the short time since the initial printing, and we wanted to include that. At the same time we would like to provide the new copies at the lowest possible cost so that they are more easily obtained by students. For this reason the new edition is in soft cover and the recent progress has been described in a final chapter rather than incorporated into the original chapters. This eliminates the expense of resetting and repaging the original text. At the same time up-to-date references have been added and typographical errors have been corrected in the original chapters. It is our hope that this edition will be useful to those with an interest in the fascinating field of magnetic bubbles.

Inhalt

1. Introduction to Magnetic Bubbles.- 1.1 What Are Magnetic Bubbles?.- 1.2 Available Bubble Materials.- 1.3 How Can Bubbles be Manipulated?.- 1.4 Why Are Bubbles of Practical Interest?.- 1.5 A Typical Storage Device.- 1.6 Why Are Bubbles of Scientific Interest?.- 1.7 Scope and Organization of the Book.- 1.8 History.- 1.9 Summary.- 2. Static Properties of Magnetic Bubbles.- 2.1 Fundamental Characteristics of the Bubble Film.- 2.2 Bubble Domain Configurations.- 2.3 Summary.- 3. Dynamic Properties of Magnetic Bubbles.- 3.1 Motion of a Wall.- 3.2 Motion of a Bubble.- 3.3 Summary.- 4. Basic Permalloy-Bar Bubble Devices.- 4.1 Propagation.- 4.2 Other Functional Elements.- 4.3 Total Chip Performance.- 4.4 Device Scaling.- 4.5 Summary.- 5. Other Bubble Device Forms.- 5.1 Two-Level Permalloy Bar.- 5.2 Charged-Wall Bubble Devices.- 5.3 Bubble Lattice Devices.- 5.4 Current Sheet Devices.- 5.5 Summary.- 6. Bubble Materials.- 6.1 The General Approach to Tailoring the Properties of Bubble Materials.- 6.2 Garnets.- 6.3 Hexaferrites.- 6.4 Amorphous Materials.- 6.5 Orthoferrites.- 6.6 Summary.- 7. Device Chip Fabrication.- 7.1 Crystal Growth.- 7.2 Substrate Preparation.- 7.3 Film Growth.- 7.4 Fabrication of Device Structure.- 7.5 Summary.- 8. Chip Packaging.- 8.1 The Storage Unit.- 8.2 The Storage Module.- 8.3 Limitations on Module Size.- 8.4 Data Integrity.- 8.5 Module Testing.- 8.6 Summary.- 9. Applications.- 9.1 Useful Features of Bubble Devices.- 9.2 General Purpose Storage Units.- 9.3 Storage Hierarchies.- 9.4 Special Purpose Applications.- 9.5 Summary.- 10. Future Prospects.- 10.1 Dependencies of the Module Attributes.- 10.2 Constraints on Active Chip Area.- 10.3 Constraints on Device Cell Density.- 10.4 Constraints on Operating Frequency.- 10.5 Loop Length.- 10.6 Areas for FutureResearch.- 10.7 Summary.- 11. Recent Developments.- 11.1 Contiguous Disk Bubble Devices.- 11.2 Permalloy Bar Storage Chips.- 11.3 Garnet Uniaxial Anisotropy, Ku.- 11.4 Summary.- References.