Magnetic Oxides
Magnetic Oxides offers a cohesive up-to-date introduction to magnetism in oxides. Emphasizing the physics and chemistry of local molecular interactions essential to the magnetic design of small structures and thin films, this volume provides a detailed vi
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Magnetic Oxides
Gerald F. Dionne
Magnetic Oxides
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Gerald F. Dionne Massachusetts Institute of Technology 244 Wood Street Lexington, MA 02420 [email protected]
ISBN 978-1-4419-0053-1 e-ISBN 978-1-4419-0054-8 DOI 10.1007/978-1-4419-0054-8 Springer New York Dordrecht Heidelberg London Library of Congress Control Number: 2009935694 c Springer Science+Business Media, LLC 2009 All rights reserved. This work may not be translated or copied in whole or in part without the written permission of the publisher (Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA), except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
The author dedicates this book to Rev. Hugh McPhee, S.J., former Dean of Science at Loyola College in Montreal, who once advised a liberal arts student that science could offer a clearer window on the world.
Preface
The inspirations for this book probably began in 1961 when I left a promising career as a semiconductor device engineer in the Rte 128 cauldron of the Boston area to pursue a new challenge at the McGill University Eaton Electronics Research Laboratory. Three years later I wrote a Ph.D. thesis on paramagnetic resonance and 3 years after I was adding to that experience as a Staff Member with MIT Lincoln Laboratory, where the scope of my obligations gradually broadened from microwave magnetic resonance to the physics and chemistry of ferrites and related magnetic oxide systems. At the time of this writing, I continue there as a resident consultant and also as a research affiliate with the MIT Department of Materials Science and Engineering. Magnetic resonance has played a vital role in the study of magnetism in oxides and other insulating compounds that began during World War II and flourished globally for a quarter century. During this halcyon period, texts on magnetism became abundant as many of the pioneers took pen in hand to leave a treasure of elegantly presented reference literature as the 1960s drew to a close. By the mid1970s, the once-fledgling field of semiconductor electronics that I had abandoned was overwhelming almost all competing technologies, including those with a magnetic component. For the better part of the two decades between the end of the Vietnam war and the discoveries of high-temperature superconductivity and giant magnetoresistance in transition-metal oxides in the early 1990s, fundamental investigations of magnetic compounds were nearly dormant. The content and
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