Solid State Physics-1 by Hand notes of Mrs.Saira Dildar (MSc Physics) |
COURSE CONTENTS:
v Crystal Structure
v Solids:
The solids are the forms of matter in which atoms and molecules
are strongly bound and maintain definite volume and shape unless changed by
applying external forces.
v Solid -state physics
v Classification of
solids
v Crystalline Solids
v Classification of
crystalline solids
v Single crystal
v Polycrystal
v Grains and grains
boundaries:
The polycrystals, the small crystalline are called grains and
the boundaries are grain boundaries.
v Non-crystalline
solids
v Crystallography:
The science which deals with the study of geometrical forms
structure and physical properties of crystalline solids is called
crystallography.
v Crystals
v Crystal Lattice
v Plane Lattice
v Space Lattice
v Lattice Points
v Lattice translation
vector
v Primitive
v In non-primitive
v Unit Cell
v Primitive unit cell
v Non-primitive unit
cell
v Simple cubic
v Face cubic
v Body-centered cubic
v Wigner Seitz Cell
The smallest volume
occupied by normal is the required primitive cell, called Wigner Seitz Cell.
v Basis
v Crystal structure
v Symmetry Operations
v Translation Symmetry
v Rotations
v Why does 5-fold
rotational symmetry no exist?
v Reflections
v Inversion
v Point group
v Bravais Lattice
v Fundamental types of
lattice
v Miller indices
v Family of planes
cube
v Family of diagonal
planes
v Inter planar spacing
v Packing fraction:
The packing fraction is defined as the ratio b/w the volume
occupied by the atoms in the unit cell to the total volume of the unit cell.
v Atomic packing
factor
v Coordination number
v Closed packed
structure
v Effective number
v Loose packed
structure
v Cscl structure
v NaCl structure
v Structure of diamond
v Some problems
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