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SOLID STATE PHYSICS, LUA YU HUI A19SC0158 - Coggle Diagram
SOLID STATE PHYSICS
UNIT CELL
DEFINING A CRYSTAL
BASIS / MOTIF
STRUCTURE
LATTICE
7 CRYSTAL SYSTEM
SHAPES FILL ALL SPACE ( NO HOLES )
TETRAGONAL
ORTHORHOMBIC
RHOMBOHEDRAL
MONOCLINIC
6.HEXAGOANL
TRICLINIC
CUBIC
CRYSTAL LATTICE
BRAVAIS LATTICE
SAME KIND ATOMS
ALL LATTICE POINTS ARE EQUIVALENT
NON-BRAVAIS LATTICE
DIFFERENT KIND ATOMS
SOME LATTICE POINTS ARE NON EQUIVALENT
5 BL IN 2D
CENTERED RECTANGULAR
HEXAGONAL
RECTANGULAR
SQUARE
OBLIQUE
14 BL IN 3D
SMALLEST REPEATING UNIT
DEFINED BY LATTICE PARAMETERS
3 COMMON UNIT CELLS
SIMPLE CUBIC
APF = 0.52
COORDINATION NUMBER = 6
NUMBER OF ATOMS = 1
CLOSED PACKED DIRECTION = CUBE EDGES
BODY CENTERED CUBIC
APF = 0.68
COORDINATION NUMBER = 8
CLOSED PACKED DIRECTION = BODY DIAGONAL
NUMBER OF ATOMS = 2
FACE CENTERED CUBIC
APF = 0.74
COORDINATION NUMBER = 12
CLOSED PACKED DIRECTION = FACE DIAGONAL
NUMBER OF ATOMS = 4
PRIMITIVE UNIT CELL & NON PRIMITIVE UNIT CELL
PRIMITIVE UNIT CELL
WIGNER SEITZ CELL
2D CONSTRUCTION
DRAW LINE ALINE FROM POINT TO NEIGHBOUR LATTICE
DRAW ON EACH LINE A PLANE PERPENDICULAR TO EACH LINE
CHOOSE ONE LATTICE POINT AT THE CENTER
DIVIDE INTO HALF
SMALLEST SHAPE BOUNDARIED BY PLANE & CENTERED BY LATTICE POINTS
3D
NON-PRIMITIVE UNIT CEL
SYMMETRY OPERATION
IMPORTANT
SET OF SYMMETRY OPERATION
POINT OPERATION
REFLECTION / MIRROR, σ
INVERSION , i
IDENTITY, E
ROTATION, Cn
NON - STANDARD ROTATION Sn
n - FOLD SYMMETRY
2 - FOLD
3 - FOLD
4 - FOLD
6 - FOLD
AXIS OF ROTATION
TRANSLATIONAL OPERATION
COMBINED OPERATION
ELEMENTS OF SYMMETRY
IN CUBIC CRYSTALS
DIAGONAL PLANE
6
RECTANGULAR PLANE
3
CENTER OF SYMMETRY
1
CRYSTAL SYMMETRY
LAW OF RATIONAL INDICES
LAW OF CONSTANCY OF SYMMETRY
AXES
13
CENTRE
1
PLANE
9
INTRODUCTION CRYSTAL STRUCTURE
SOLID MATERIALS
POLYCRYSTALLINE
AMORPHOUS (NON-CRYSTALLINE)
CRYSTALLINE
CRYSTAL STRUCTURE
CRYSTAL
LATTICE
BASIS
STUDY OF MATERIALS IN SOLID FORM
POSITION, DIRECTION & PLANE IN CRYSTALS
MILLER INDICES
FOR PLANE
IDENTIFY COORDINATE PLANES
TAKE RECIPROCALS
CLEAR FRACTIONS
IN PARENTHESES
FAMILY OF DIRECTIONS
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PLANES EQUIVALENT TO PLANE ( HKL )THROUGH ROTATIONAL SYMMETRY
[ ]
FOR DIRECTIONS
HCP
MILLER BRAVAIS INDICES
SYSTEM & TYPES OF LATTICES
LATTICE PARAMETERS
ANGLES BETWEEN SIDES
LENGTH IN NANOMETERS OR ANGSTROM
THEORETICAL DENSITY
LUA YU HUI A19SC0158
