Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures
This book provides a comprehensive overview of the latest developments in the field of spin dynamics and magnetic damping. It discusses the various ways to tune damping, specifically, dynamic and static control in a ferromagnetic layer/heavy metal layer.
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Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures
Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures
Anjan Barman Jaivardhan Sinha •
Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures
123
Anjan Barman Department of Condensed Matter Physics and Material Sciences S. N. Bose National Centre for Basic Sciences Kolkata India
Jaivardhan Sinha Department of Condensed Matter Physics and Material Sciences S. N. Bose National Centre for Basic Sciences Kolkata India
ISBN 978-3-319-66295-4 ISBN 978-3-319-66296-1 https://doi.org/10.1007/978-3-319-66296-1
(eBook)
Library of Congress Control Number: 2017950039 © Springer International Publishing AG 2018 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Printed on acid-free paper This Springer imprint is published by Springer Nature The registered company is Springer International Publishing AG The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland
Preface
This book presents the recent development in the area of spin dynamics and magnetic damping. It is important to understand the basic physical phenomena that govern the spin dynamics in the ferromagnetic thin films and nanostructures along with its application potential in data storage, memory, and communication technology. One of the crucial parameters that govern the spin dynamics is magnetic damping. The book begins with introducing spin dynamics with a perspective of quantum mechanical approach. The phenomenological Landau–Lifshitz–Gilbert (LLG) equation describing magnetization dynamics and also where the Gilbert damping appears is introduced subsequently. Discussion about the origin and mechanism (e.g., intrinsic and extrinsic, local and non-local) of damping is included. Existing theoretical models, e.g., breathing Fermi surface model, s-d-exchange relaxation model, spin-f
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