微磁学中的弛豫过程

Preface vii

Notations and conventions xvii

1 The Classical Magnetization Field

1.1 Introduction

1.2 Equations of motion

1.2.1 Damping

1.3 Approaching the Curie temperature

2 Small motions of the Magnetization

2.1 Introduction

2.2 Models of small motions

2.2.1 Distributive damping

2.2.2 Instabilities and spin wave condensates

3 Intrinsic Damping

3.1 Introduction

3.2 Magnetostrictive coupling

Preface vii

Notations and conventions xvii

1 The Classical Magnetization Field

1.1 Introduction

1.2 Equations of motion

1.2.1 Damping

1.3 Approaching the Curie temperature

2 Small motions of the Magnetization

2.1 Introduction

2.2 Models of small motions

2.2.1 Distributive damping

2.2.2 Instabilities and spin wave condensates

3 Intrinsic Damping

3.1 Introduction

3.2 Magnetostrictive coupling

3.2.1 Small samples

3.2.2 Large, homogeneous samples

3.3 Loss torque in magnetic metals

3.3.1 Eddy current damping

3.3.2 Direct coupling of conduction electrons to the

magnetization field

3.4 Fluctuations in medium properties

3.5 Relaxation due to weakly coupled magnetic impurities

3.5.1 Slow relaxation

3.5.2 Corrections to the adiabatic limit

3.6 Appendix 3A. Inclusion of displacement current in

Section 3.3.1

4 Fluctuations

4.1 Introduction

4.2 Fluctuation-dissipation theorem

4.3 Langevin equation, and generalized Langevin equation

4.4 Fokker-Planck equation-cartesians

4.4.1 Fokker-Planck equation in polar angles

4.4.2 Fokker-Planck equation in the absence of well-defined

canonical variables

5 Magnetization Reversal in a Very Dilute Array of Small

Particles

5.1 Introduction

5.2 General observations

5.3 Reversal in 2d

5.3.1 Reversal in the long time limit

5.3.2 Intermediate time scales

5.3.3 Applied field and anisotropy axis misaligned

5.3.4 Relation to first-passage type theories

5.4 Rotation in 3d

6 Magnetization Reversal in Arrays of Particles and

Continuous Media

6.1 Introduction

6.2 Relaxation due to magnetic moment interaction in

a sparse medium

6.2.1 Equations of motion for dipolar interaction

6.2.2 A single pair

6.3 More dense arrays of many interacting particles

6.3.1 The Arnold web

6.3.2 Relevance to magnetic relaxation and reversal

6.3.3 Effective single-variable relaxation from causes other than

chaos

6.4 Magnetization reversal and the magnetization process in

large, dense systems

6.4.1 Simple model of magnetization reversal by domain wall

motion

6.4.2 Motion of a Bloch domain wall

6.4.3 Magnetostatics and the magnetization process.

Pre-existing domain walls

6.5 Appendix 6A: Vortex solutions in cylinder and disc: stability

considerations

References

Subject Index

《微磁学中的弛豫过程(英文影印版)》讲述了微磁学的相关概念。特别地，本书对弛豫过程中的一些现象进行了深入探讨。并且，本书对弛豫的理论分析也给与了详细介绍。本书适合凝聚态物理、固体物理和材料物理领域的研究者参考。

弛豫过程是普遍存在与物理现象中的。在微磁学中，弛豫过程更是必须考虑的对象。国内系统讲述这方面理论的图书非常罕见，《微磁学中的弛豫过程(英文影印版)》的引进对国内的相关研究人员会很有帮助。