THE SOLID STATES

• Topics
• Introduction
• Characteristics of solid state
• Amorphous Solids
• Crystalline Solids
• Molecular Solids
• Ionic Solids
• Metallic Solids
• Covalent solids
• Crystal Lattices
• Unit Cells
• Primitive & Centered Unit Cells
• Number of atoms per unit cell : Primitive Cubic Unit Cell
• Number of atoms per unit cell in Body Centered Cubic Unit Cell
• Number of atoms per unit cell in Face Centered Cubic Unit Cell
• Close Packing in One Dimension
• Close Packing in Two Dimensions
• Close Packing in Three Dimensions
• Three dimensional close packing from two dimensional square
• Three dimensional close packing from two dimensional hexagon
• Placing second layer over the first layer
• Placing third layer over the second layer , Covering Tetrahedral void
• Placing third layer over the second layer , Covering Octahedral void
• Formula of a Compound and Number of Voids Filled
• Locating Tetrahedral Voids
• Locating Octahedral Voids
• Packing Efficiency in hcp and ccp Structures
• Efficiency of Packing in Body Centered Cubic Structures
• Packing Efficiency in Simple Cubic Lattice
• Calculations Involving Unit Cell Dimensions
• Imperfections in Solids
• Stoichiometric Defects
• Impurity defect
• Non-Stoichiometric Defects
• Electrical Properties of soilds
• Conduction of Electricity in Metals
• Conduction of Electricity in Semiconductors
• Doping
• Electron rich impurities
• Electron deficit impurities
• Application of Semiconductors
• Magnetic Properties
• Paramagnetism
• Diamagnetism
• Ferromagnetism
• Ferrimagnetism