The basics of electron transport in spintronics

Foreword................................................... III

Preface..................................................... V

CHAPTER 1

Introduction .................................................1

CHAPTER 2

First Notions About Electron and Spin Transport– CIP-GMR, IEC, AMR . 7

2.1 Types of Model.......................................... 7

2.2 Two-Current Model, Ohm’s Law,Spin-Dependent Mean Free Path ... 9

2.3 Band Structures, Spin-Dependent Fermi Surface & Density of State . . 12

2.4 Spin-Dependent Scattering, the sd Model...................... 15

2.5 From Impurity Scattering to Heterostructures – CIP-GMR, IEC ..... 17

2.6 Spin Mixing and Spin-Orbit Interactions –AMR................. 24

CHAPTER 3

Spin Accumulation – CPP-GMR................................. 31

3.1 Spin-Dependent Spin-Flip Scattering.......................... 32

3.2 Drift-Diffusion Model, Spin-Coupled Resistance & Mismatch ........ 33

3.3 Heterostructures – CPP-GMR.............................. 40

3.4 Interface Scattering, Spin Memory Boost, and Spin Memory Loss .... 42

3.5 Non-Collinearity and Non-Uniformity (Geometric and Magnetic) .... 45

CHAPTER 4

Transfer of Angular Momentum – STT, Spin Pumping, SOT ............ 49

4.1 (sd-)Coupling, Spin Transfer Torques – STT.................... 49

4.2 Toy Quantum Mechanical Model for STT, Angular Momentum Flow . 52

4.3 STT in CPP Transport Equations............................ 59

4.4 STT in Magnetization Dynamics Equations, Reciprocal Spin Pumping. 61

4.5 STT in Magnetic Textures................................. 66

4.6 Magnetoelectronic Circuit Theory............................ 67

4.7 Spin-Orbit Torques – SOT................................. 70

CHAPTER 5

Berry Curvature, Parity and Time Symetries –Intrinsic AHE, SHE, QHE . 79

5.1 Berry Curvature, Berry Phase............................... 79

5.2 Unquantized Hall Effects – Intrinsic AHE,SHE ................. 82

5.3 Quantum Hall Effect – QHE................................ 89

5.4 Parity and Time Reversal Symetries – P, T................... 91

5.5 Thermal Nernst Counterparts............................... 96

CHAPTER 6

Exercises and Solutions......................................... 101

6.1 Anisotropic Magnetoresistance (AMR) –chapter 2 ............... 101

6.2 Domain Wall Anisotropic Magnetoresistance(DWAMR) – chapter 3. . 106

6.3 Drift-Diffusion Equation for Spin Accumulation (μs) – chapters 3–5 . . 106

6.4 Spin Conductivity Mismatch (CPP-GMR) –chapter 3 ............ 110

6.5 Intra-Band Scattering – Intrinsic Damping(α0) – chapters 2 and 4 ... 112

6.6 Spin Pumping (SP) and Inverse Spin Hall Effect (ISHE)– chapters 4 and 5....................................... 114

6.7 Spin Pumping (SP) – Additional Damping (αp)– chapter 4 ........ 121

6.8 Spin Hall Magnetoresistance (SMR) –chapters 2–4 ............... 125

6.9 Harmonic Analysis of the Anomalous Hall Voltage (Vx xy ; V2x xy ) – chapters 4 and 5....................................... 133

6.10 Intrinsic Anomalous Hall and Nernst Effects (AHE, ANE) – chapter 5 136

CHAPTER 7

Conclusion.................................................. 143

Index of Key Concepts......................................... 147

Abbreviations, Symbols and Units................................ 149

Langue(s) : Anglais

Public(s) : Professionnels, Recherche, Etudiants

Editeur : EDP Sciences & Science Press

Collection : Current Natural Sciences

Publication : 25 mai 2023

Référence Livre papier : L29170

Référence eBook [PDF] : L29187

EAN13 Livre papier : 9782759829170

EAN13 eBook [PDF] : 9782759829187

Intérieur : Couleur

Format (en mm) Livre papier : 16 x 24

Nombre de pages Livre papier : 168

Nombre de pages eBook [PDF] : 168

Taille(s) : 19,1 Mo (PDF)