Preface. Foreword. Table of Contents. List of Figures. Executive Summary. 1. Spin Electronics-Is It the Technology of the Future? S. von Molnár. Introduction. This Study. Spin Electronics: A Significant Field of Scientific Inquiry? Conclusions. Acknowledgements. References. 2. Materials for Semiconductor Spin Electronics; S. von Molnár. Discussion. Conclusions. References. 3. Fabrication and Characterization of Magnetic Nanostructures; M.L. Roukes. Background and Overview. Fabrication of Magnetic Nanostructures. Characterization of Magnetic Nanostructures. Near-term Perspective and Interim Conclusions. References. 4. Spin Injection, Spin Transport and Spin Transfer; R.A. Buhrman. Background and Overview. Research Activities in Japan. Research Activities in Europe. Concluding Comments. References. 5. Optoelectronic Manipulation of Spin in Semiconductors; D.D. Awschalom. Introduction. Optoelectronic Manipulation of Spin Coherence in Semiconductors and Nanostructures. Spin Transport in Heterostructures and Coherent Spintronics. Role of Disorder in Spin-based Electronics. Magnetic Doping in Semiconductor Heterostructures: Integration of Magnetics and Electronics. Optical Manipulation of Nuclear Spins. Artificial Atoms in the Solid State: Quantum Dots. Outlook and General Conclusions. References. 6. Magnetoelectronic Devices; J.M. Daughton. Overview of Issues for Magnetoelectronic Devices. Salient Features of Magnetoelectronics Research in Europe and Japan. Comparison of Japan and Europe Research with that in the United States. References. Appendices: Appendix A. Biographies of Team Members. Appendix B. SiteReports-Europe. Appendix C. Site Reports - Japan. Appendix D. Highlights of Recent U.S. Research and Development Activities. Appendix E. Glossary. Appendix F. Index of Sites.