List of Figures ............................................... iii
List of Tables .................................................. v
List of Abbreviations .......................................... vi
List of Symbols .............................................. viii
1 Introduction ................................................. 1
2 Theory of Generalized Ellipsometry ........................... 5
2.1 Spectroscopic Ellipsometry .............................. 5
2.1.1 Jones Matrix Presentation ........................ 6
2.1.2 Mueller Matrix Presentation ...................... 7
2.1.3 Standard and Generalized Ellipsometry ............ 9
2.1.4 4 × 4 Matrix Method ............................. 10
2.2 Magneto-optical Generalized Ellipsometry ............... 14
2.2.1 Magneto-optical Dielectric Tensor ............... 15
2.2.2 Magneto-optical Effects ......................... 16
3 Vector-Magneto-Optical Generalized Ellipsometry ............. 18
3.1 Octupole Magnet ........................................ 18
3.2 Mueller Matrix Ellipsometry ............................ 21
3.3 3D Vector Magnetic Field Control ....................... 22
3.4 VMOGE Coordinate System ................................ 23
3.5 Data Acquisition ....................................... 25
3.6 Data Analysis .......................................... 27
4 Experimental Techniques ..................................... 30
4.1 Electron Beam Physical Vapor Evaporation ............... 30
4.2 Transmission Electron Microscopy (ТЕМ) ................. 32
4.3 Atomic Force Microscopy (AFM) .......................... 33
4.4 Rutherford Backscattering Spectroscopy (RBS) ........... 33
4.5 Superconducting Quantum Interference Device (SQUID) .... 34
4.6 Spectroscopic Ellipsometry ............................. 35
5 Standard Characterizations .................................. 37
5.1 Structural Properties .................................. 37
5.1.1 Cross-sectional ТЕМ ............................. 37
5.1.2 AFM Surface Topology ............................ 41
5.2 NixFe100-z Alloy Compositions .......................... 41
5.3 Magnetization .......................................... 41
5.4 Effective Dielectric Tensor ............................ 45
5.5 Zero Magnetic Field Mueller Matrix ..................... 47
6 VMOGE Results ............................................... 48
6.1 VMOGE Dispersion Mode .................................. 48
6.2 Magneto-optical Dielectric Tensor and Coupling
Constant ............................................... 49
6.3 Comparison with Magneto-optical Conductivity ........... 51
6.4 Angle of Incidence ..................................... 53
6.5 Thickness Independent Q ................................ 54
6.6 Identifying Magnetization Orientations ................. 55
6.7 Hysteresis and Field-orbit Modes ....................... 57
7 Summary and Outlook ......................................... 71
A Sample List ................................................. 74
B Physical Properties of Fe, Co, Ni, and NixFe100-z Alloys .... 75
С Own Publications ............................................ 82
References ..................................................... 85
|