Preface ......................................................... v
Chapter 1. Overview ............................................. 1
Teruya Shinjo
1 Introduction ................................................. 1
2 Discovery of GMR ............................................. 3
3 Development of GMR Studies ................................... 6
4 Further Progress in MR Experiments ........................... 9
5 The Scope of this Book ...................................... 11
Chapter 2. GMR, TMR and BMR .................................... 15
Jun-ichiro Inoue
1 Introduction ................................................ 16
2 Spin-Dependent Transport in Ferromagnetic Metals ............ 18
3 Microscopic Theory of Electrical Conductivity: Linear
Response Theory ............................................. 24
4 Giant Magnetoresistance ..................................... 30
5 Tunnel Magnetoresistance .................................... 45
6 Ballistic Magnetoresistance ................................. 70
7 Other MR Effects: Normal MR, AMR and CMR .................... 75
8 Spin-Orbit Interaction and Hall Effects ..................... 79
9 Perspective ................................................. 85
Acknowledgements ............................................... 85
Chapter 3. Spin-Injection Phenomena and Applications ........... 93
Yoshishige Suzuki, Ashwin A. Tulapurkar, and
Claude Chappert
1 Spin Injection and Torque ................................... 94
2 Spin-Injection Magnetization Reversal ...................... 111
3 High-Frequency Phenomena ................................... 129
4 From Spin-Transfer Torque RAM to Magnetic Logic ............ 139
Acknowledgements .............................................. 147
Chapter 4. Dynamics of Magnetic Domain Walls in Nanomagnetic
Systems ............................................ 155
Teruo Ono and Teruya Shinjo
1 Introduction ............................................... 156
2 Field-Driven DW Motions .................................... 157
3 Current-Driven DW Motions .................................. 167
4 Topics on Nanodot Systems .................................. 175
Acknowledgements .............................................. 185
Chapter 5. Theoretical Aspects of Current-Driven
Magnetization Dynamics ............................. 189
Hiroshi Kohno and Gen Tatara
1 Introduction ............................................... 190
2 Dynamics of a Rigid Domain Wall ............................ 191
3 Microscopic Calculation of Spin Torques .................... 208
4 Related Topics ............................................. 221
5 Prospects .................................................. 226
Acknowledgements .............................................. 226
Chapter 6. Micromagnetics of Domain-Wall Dynamics in Soft
Nanostrips ......................................... 231
Andre Thiaville and Yoshinobu Nakatani
1 Introduction ............................................... 232
2 Field Dynamics of Domain Walls ............................. 239
3 Domain-Wall Motion by Spin-Polarized Current ............... 248
4 Dynamics Under Combined Field and Current .................. 269
5 Conclusions and Outlook .................................... 273
Acknowledgements .............................................. 274
Chapter 7. Ill-V-Based Ferromagnetic Semiconductors ........... 277
Fumihiro Matsukura and Hideo Ohno
1 Introduction ............................................... 278
2 Molecular Beam Epitaxy ..................................... 279
3 Structural and Magnetic Properties ......................... 281
4 Electrical and Optical Properties .......................... 287
5 The sp-d Exchange Interaction .............................. 294
6 The p-d Zener Model of Ferromagnetism ...................... 296
7 Properties Revealed by Device Structures ................... 297
8 Prospects .................................................. 306
Acknowledgement ............................................... 307
Author Index .................................................. 317
Subject Index ................................................. 337
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