Ebook: Properties of Impurity States in Superlattice Semiconductors

A NATO workshop on "The Properties of Impurity States in Semiconductor Superlattices" was held at the University of Essex, Colchester, United Kingdom, from September 7 to 11, 1987. Doped semiconductor superlattices not only provide a unique opportunity for studying low dimensional electronic behavior, they can also be custom-designed to exhibit many other fascinating el~ctronic properties. The possibility of using these materials for new and novel devices has further induced many astonishing advances, especially in recent years. The purpose of this workshop was to review both advances in the state of the art and recent results in various areas of semiconductor superlattice research, including: (i) growth and characterization techniques, (ii) deep and shallow im­ purity states, (iii) quantum well states, and (iv) two-dimensional conduction and other novel electronic properties. This volume consists of all the papers presented at the workshop. Chapters 1-6 are concerned with growth and characterization techniques for superlattice semiconductors. The question of a-layer is also discussed in this section. Chapters 7-15 contain a discussion of various aspects of the impurity states. Chapters 16- 22 are devoted to quantum well states. Finally, two-dimensional conduction and other electronic properties are described in chapters 23-26.

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Content:
Front Matter....Pages i-xi
Front Matter....Pages xiii-xiii
Doping in Two Dimensions: The ?-Layer....Pages 1-9
Optical Measurements of Acceptor Concentration Profiles at GaAs/GaAlAs Quantum Well Interfaces....Pages 11-18
Molecular Beam Epitaxy of Ga0.99Be0.01As for very high Speed Heterojunction Bipolar Transistors....Pages 19-28
Progress Report on Molecular Beam Epitaxy of III–V Semiconductors — From Fibonacci to Monolayer Superlattices....Pages 29-41
Interface Characterization of GaInAs-InP Superlattices Grown by Low Pressure Metalorganic Chemical Vapor Deposition....Pages 43-61
Structural and Chemical Characterization of Semiconductor Interfaces by High Resolution Transmission Electron Microscopy....Pages 63-74
Front Matter....Pages 75-75
Deep Level Behaviour in Superlattice....Pages 77-84
Role of the Si Donors in Quantum and Ultraquantum Transport Phenomena in GaAs-GaAlAs Heterojunctions....Pages 85-106
Defects Characterization in GaAs-GaAlAs Superlattices....Pages 107-120
Studies of the DX Centre in Heavily Doped n+GaAs....Pages 121-134
Shallow and Deep Impurity Investigations: The Important Step Towards a Microwave Field-Effect Transistor Working at Cryogenic Temperatures....Pages 135-146
Electronic States in Heavily and Ordered Doped Superlattice Semiconductors....Pages 147-158
Properties of Impurity States In n-i-p-i Superlattice Structures....Pages 159-174
Deep Impurity Levels in Semiconductors, Semiconductor Alloys, and Superlattices....Pages 175-187
“Pinning” of Transition-Metal Impurity Levels....Pages 189-191
Front Matter....Pages 193-193
Theory of Impurity States in Superlattice Semiconductors....Pages 195-218
Effective-Mass Theory of Electron States in Heterostructures and Quantum Wells....Pages 219-228
Hot Electron Capture in GaAs MQW: NDR and Photo-Emission....Pages 229-244
In-Plane Electronic Excitations in GaAs/GaAlAs Modulation Doped Quantum Wells....Pages 245-254
Resonant Tunneling in Double Barrier Heterostructures....Pages 255-269
Front Matter....Pages 193-193
Extrinsic Photoluminescence in Unintentionally and Magnesium Doped GaInAs/GaAs Strained Quantum Wells....Pages 271-283
Magneto-Optics of Excitons in GaAs-(GaAl) As Quantum Wells....Pages 285-294
Front Matter....Pages 295-295
The Influence of Impurities on the Shubnikov-De Haas and Hall Resistance of Two-Dimensional Electron Gases in GaAs/AlxGa1-xas Heterostructures Investigated by Back-Gating and Persistent Photoconductivity....Pages 297-305
Cyclotron Resonance of Polarons in Two Dimensions....Pages 307-318
Structure and Electronic Properties of Strained Si/Ge Semiconductor Superlattices....Pages 319-331
Theory of Raman Scattering from Plasmons Polaritons in GaAs/AlxGa1-xAs Superlattices....Pages 333-346
Back Matter....Pages 347-351

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Content:
Front Matter....Pages i-xi
Front Matter....Pages xiii-xiii
Doping in Two Dimensions: The ?-Layer....Pages 1-9
Optical Measurements of Acceptor Concentration Profiles at GaAs/GaAlAs Quantum Well Interfaces....Pages 11-18
Molecular Beam Epitaxy of Ga0.99Be0.01As for very high Speed Heterojunction Bipolar Transistors....Pages 19-28
Progress Report on Molecular Beam Epitaxy of III–V Semiconductors — From Fibonacci to Monolayer Superlattices....Pages 29-41
Interface Characterization of GaInAs-InP Superlattices Grown by Low Pressure Metalorganic Chemical Vapor Deposition....Pages 43-61
Structural and Chemical Characterization of Semiconductor Interfaces by High Resolution Transmission Electron Microscopy....Pages 63-74
Front Matter....Pages 75-75
Deep Level Behaviour in Superlattice....Pages 77-84
Role of the Si Donors in Quantum and Ultraquantum Transport Phenomena in GaAs-GaAlAs Heterojunctions....Pages 85-106
Defects Characterization in GaAs-GaAlAs Superlattices....Pages 107-120
Studies of the DX Centre in Heavily Doped n+GaAs....Pages 121-134
Shallow and Deep Impurity Investigations: The Important Step Towards a Microwave Field-Effect Transistor Working at Cryogenic Temperatures....Pages 135-146
Electronic States in Heavily and Ordered Doped Superlattice Semiconductors....Pages 147-158
Properties of Impurity States In n-i-p-i Superlattice Structures....Pages 159-174
Deep Impurity Levels in Semiconductors, Semiconductor Alloys, and Superlattices....Pages 175-187
“Pinning” of Transition-Metal Impurity Levels....Pages 189-191
Front Matter....Pages 193-193
Theory of Impurity States in Superlattice Semiconductors....Pages 195-218
Effective-Mass Theory of Electron States in Heterostructures and Quantum Wells....Pages 219-228
Hot Electron Capture in GaAs MQW: NDR and Photo-Emission....Pages 229-244
In-Plane Electronic Excitations in GaAs/GaAlAs Modulation Doped Quantum Wells....Pages 245-254
Resonant Tunneling in Double Barrier Heterostructures....Pages 255-269
Front Matter....Pages 193-193
Extrinsic Photoluminescence in Unintentionally and Magnesium Doped GaInAs/GaAs Strained Quantum Wells....Pages 271-283
Magneto-Optics of Excitons in GaAs-(GaAl) As Quantum Wells....Pages 285-294
Front Matter....Pages 295-295
The Influence of Impurities on the Shubnikov-De Haas and Hall Resistance of Two-Dimensional Electron Gases in GaAs/AlxGa1-xas Heterostructures Investigated by Back-Gating and Persistent Photoconductivity....Pages 297-305
Cyclotron Resonance of Polarons in Two Dimensions....Pages 307-318
Structure and Electronic Properties of Strained Si/Ge Semiconductor Superlattices....Pages 319-331
Theory of Raman Scattering from Plasmons Polaritons in GaAs/AlxGa1-xAs Superlattices....Pages 333-346
Back Matter....Pages 347-351
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