Bland / Heinrich Ultrathin Magnetic Structures III

Fundamentals of Nanomagnetism
1. Auflage 2005
ISBN: 978-3-540-27163-5
Verlag: Springer Berlin Heidelberg
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 318 Seiten

The ability to understand and control the unique properties of interfaces has created an entirely new field of magnetism which already has a profound impact in technology and is providing the basis for a revolution in electronics. The last decade has seen dramatic progress in the development of magnetic devices for information technology but also in the basic understanding of the physics of magnetic nanostructures. This volume describes thin film magnetic properties and methods for characterising thin film structure topics that underpin the present 'spintronics' revolution in which devices are based on combined magnetic materials and semiconductors. Volume IV deals with the fundamentals of spintronics: magnetoelectronic materials, spin injection and detection, micromagnetics and the development of magnetic random access memory based on GMR and tunnel junction devices. Together these books provide readers with a comprehensive account of an exciting and rapidly developing field. The treatment is designed to be accessible both to newcomers and to experts already working in this field who would like to get a better understanding of this very diversified area of research.

Bret Heinrich: Professor Physics Department, Simon Fraser University, Director Surface Physics Laboratory , SFU; Fellow of American Physical Society; Associate member of Canadian Institute for Advanced Research CIAR); member of Canadian European Research Initiative on Nanostructures (CERION II); a fellow of Alexander von Humboldt Foundation, member of Advisory Committee, Annual Conference on Magnetism and Magnetic Materials (MMM), American Institute of Physics; member of International Advisory Committee, International Colloquium on Thin Films and Surfaces (ICMFS). Anthony Bland: Professor at the Cavendish Laboratory, Cambridge University, Fellow of the Institute of Physics (UK), and Fellow of Selwyn College has directed the Thin Film Magnetism group at the Cavendish Laboratory since 1989. He frequently serves as an advisory committee member (Rutherford Laboratory, UK and various international conferences) and was awarded the Wohlfarth prize by the Institute of Physics and the Institute of Electrical Engineers in 1999.

Autoren/Hrsg.

Heinrich, Bretislav

Bland, J. A. C.

Inhaltsverzeichnis

1;Preface;5
2;Contents;7
3;Contributors;11
4;Acronyms;13
5;1 Introduction;15
6;2 Electron Transport in Magnetic Multilayers;18
6.1;2.1 Introduction;18
6.2;2.2 Transport Theory for Inhomogeneous Materials;19
6.3;2.3 Free Electrons with Random Point Scatterers;20
6.4;2.4 The Semiclassical Approach to Transport;27
6.5;2.5 Electronic Structure;33
6.6;2.6 Transport in Layered Systems;39
6.7;2.7 Giant Magnetoresistance;50
6.8;2.8 Landauer Approach to Ballistic Transport;56
6.9;2.9 Spin-Dependent Tunnelling;58
6.10;References;62
7;3 Spin Polarized Electron Tunneling;64
7.1;3.1 Tunneling Between Two Free-Electron Metals;65
7.2;3.2 Role of the Density of States in Tunneling;67
7.3;3.3 The Beginnings of Spin Dependent Tunneling;70
7.4;3.4 Fabrication and Characterization of FM- Al2O3- FM Junctions;78
7.5;3.5 Hallmark Features of MTJs;81
7.6;3.6 Recent Magnetic Tunnel Junction Experiments;90
7.7;3.7 Outlook and Conclusions;103
7.8;References;105
8;4 Interlayer Exchange Coupling;111
8.1;4.1 Introduction;111
8.2;4.2 Experiment;115
8.3;4.3 Physical Mechanism for Bilinear Coupling;119
8.4;4.4 Other Coupling Mechanisms;130
8.5;4.5 Specific Systems;140
8.6;4.6 Summary;147
8.7;References;148
9;5 Spin Relaxation in Magnetic Metallic Layers and Multilayers;155
9.1;5.1 Introduction;155
9.2;5.2 Magnetic Equations of Motion;156
9.3;5.3 FMR Linewidth;161
9.4;5.4 Intrinsic Damping in Metals, Theory;164
9.5;5.5 Magnetic Relaxations in Multilayers;183
9.6;5.6 Non-local Damping: Experiment;198
9.7;5.7 Extrinsic Damping;205
9.8;References;218
10;6 Nonequilibrium Spin Dynamics in Laterally Defined Magnetic Structures;223
10.1;6.1 Introduction;223
10.2;6.2 Experimental Methods;225
10.3;6.3 Experimental Results for Magnetization Reversal Dynamics;234
10.4;6.4 Conclusion and Outlook;241
10.5;References;242
11;7 Polarised Neutron Reflection Studies of Thin Magnetic Films;245
11.1;7.1 Introduction;245
11.2;7.2 Theoretical Basis;247
11.3;7.3 Polarised Neutron Reflection Magnetometry;266
11.4;7.4 Conclusions;286
11.5;References;287
12;8 X-ray Scattering Studies of Ultrathin Metallic Structures;297
12.1;8.1 Introduction;297
12.2;8.2 Reflectivity Measurements of Interfacial Structure;299
12.3;8.3 Wide-angle Diffraction Measurements of Layered Structures;313
12.4;8.4 Outlook;321
12.5;References;322
13;Subject Index;326