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TITLE
DEDICATION
CERTIFICATE 1
CERTIFICATE-2
DECLARATION
ACKNOWLEDGEMENT
CONTENTS
PREFACE
1 A BRIEF REVIEW OF THE SEMICONDUCTING COMPOUNDS AND INTRODUCTION TO THE THEORY OF ELASTICITY AND THERMAL EXPANSION
1.1 Introduction
1.2 Zinc Sulphide (ZnS)
1.3 Zinc Selenide (ZnSe)
1.4 Zinc Telluride (ZnTe)
1.5 Gallium Arsenide (GaAs)
1.6 Finite Strain Theory of Elasticity
1.7 Quasi-harmonic Theory of Thermal Expansion
References
2 INTERLATTICE DISPLACEMENTS OF ZnS, ZnSe, ZnTe and GaAs
2.I Introduction
2 2 Theory
2.3 Interlattice Displacements of Zinc Sulphide (ZnS)
2.4 Results and Discussion
2.5 lnterlattice displacements of Zinc Selenide (ZnSe)
2.6 Results and Discussion
2.7 Interlattice Displacements of Zinc Telluride (ZnTe)
2.8 Results and Discussion
2.9 Interlattice Displacements of Gallium Arsenide (GaAs)
2.10 Results and Discussion
References
3 SECOND-ORDER ELASTIC CONSTANTS OF ZnS, ZnSe, ZnTe And GaAs
3.1 Introduction
3.2 Theory
3.3 Second-order Elastic Constants of Zinc Sulphide (ZnS)
3.4 Second order Elastic Constants of Zinc Selenide ZnSe)
3.5 Second-order Elastic Constants of Zinc Telluride (ZnTe)
3.6 Second--order Elastic Constants of Gallium Arsenate (GaAs)
3.7 Results and Discussion
References
4 THIRD-ORDER ELASTIC CONSTANTS OF ZnS, ZnSe, ZnTe AND GaAs
4.1 Introduction
4.2 Theory
4.3 Third-order Elastic Constants of Zinc Sulphide (ZnS)
4.4 Third-order Elastic Constants of Zinc Solenoid (ZnSe)
4.5 Third-order Elastic Constants of Zinc Telluride (ZnTe)
4.6 Third-order Elastic Constants of Gallium Arsenate (GaAs)
4.7 Results and Discussion
References
5 PRESSURE DERIVATIVES OF THE SECOND-ORDER ELASTIC CONSTANTS OF ZnS, ZnSe, ZnTe and GaAs
5.1 Introduction
5.2 Theory
5.3 Pressure Derivatives of Zinc Sulphate (ZnS)
5.4 Pressure Derivatives of Zinc Solenoid (ZnSe)
5.5 Pressure Derivatives of Zinc Telluride (ZnTe)
5.6 Pressure Derivatives of Gallium Arsenate (GaAs)
5.7 Results and Discussion
References
6 LOW TEMPERATURE THERMAL EXPANSION OF Ins, ZnSe, ZnTe AND GaAs
6.1 Introduction
6.2 Procedure to Obtain the Low Temperature Limit of Lattice Thermal Expansion
6.3 Low temperature Limit of the Lattice Thermal Expansion of Zinc Sulphide (ZnS)
6.4 Low Temperature Limit of the Lattice Thermal Expansion Of Zinc Solenoid (ZnSe)
6.5 I ow Temperature Limit of the Lattice Thermal Expansion of Zinc Telluride (ZnTe)
6.6 Low Temperature Limit of the Lattice Thermal Expansion of Gallium Arsenate (GaAs)
6.7 Results and Discussion
References
7 SUMMARY AND CONCLUSION
APPENDICES
APPENDIX I Position Co-ordinates of the Various Nearest Neighbours of the Different Atoms in the Unit Cell of ZnS
APPENDIX II Position Co-ordinates of the Various Nearest Neighbours of the Different Atoms in the Unit Cell of ZnSe
APPENDIX III Position Co-ordinates of the Various Nearest Neighbours of the Different Atoms in the Unit Cell of ZnTe
APPENDIX IV Position Co-ordinates of the Various Nearest Neighbours of the Different Atoms in the Unit Cell of GaAs