Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published March 1, 1991 | public
Journal Article

Spin control in organic molecules

Abstract

Magnetism has fascinated and served humanity for almost 3000 years. Since the discovery of the lodestone (FeO-Fe_2O_3), many different magnetic materials have been developed, almost all based on transition metals and/or rare-earth elements. Technological application of magnetism also has a long history, from the compass to today's sophisticated magnetic memory systems. In contrast, the theory of magnetism has progressed more slowly, despite the efforts of great minds throughout history. The reason early theoretical models were not very valuable is now clear. Any viable theory of magnetism must be based on two inherently quantum mechanical concepts: electron spin and the Pauli exclusion principle. As such, only the 20th century has produced a competent model for magnetism, and that model continues to evolve. Studies over the last 20 years have revealed a bewildering array of new magnetic phenomena that continue to challenge our understanding of solid-state physics.

Additional Information

© 1991 American Chemical Society. I have been fortunate to have an outstanding group of graduate students and postdoctoral fellows as colleagues, and I gratefully acknowledge their substantial intellectual and experimental contributions to this work. I also thank the National Science Foundation for consistent support of our biradical projects and, more recently, the Office of Naval Research and the Caltech Consortium in Chemistry and Chemical Engineering (founding members: E. I. du Pont de Nemours and Co., Inc.; Eastman Kodak Company; and Minnesota Mining and Manufacturing Company) for support.

Additional details

Created:
August 19, 2023
Modified:
October 17, 2023