Solid State Physics-1 by hand notes of GPCJ free download

COURSE CONTENTS:

Ø Crystal structure

Matter consists of one or more elements or their chemical compounds exist in nature in solid, liquid, and gaseous states.

In solids atoms and molecules are attached with one another by strong forces of attraction.

“The solid-state physics is the branch of physics dealing with physical properties of solids especially the behaviors of an electron in crystals.”

There are about twenty thousand crystalline substances in the crystal kingdom.

Ø Lattice

A set of Geometrical points that defines the position of atoms, ions, or molecules is called Lattice.

Ø Bravais Lattice

The lattice in which all lattice points are equivalent is called Bravais lattice.

Ø Non-Bravais Lattice

The lattice in which some of the lattice points are non-equivalent is called the Non-Bravais lattice.

Ø Basis

A group of atoms, molecules, or ions attached to each lattice is called a basis.

Ø Crystal

A crystal is a solid in which the atoms are arranged periodically.

Ø Types of Lattice

I. Simple lattice or simple cubic lattice (s.c)

II. Body Central Lattice (b.c.c)

III. Face Central lattice (f.c.c)

Ø Base Centered Lattice

Ø Types of Bravais Lattices

Also read :Solid State Physics-1 Chapter No.5 complete notes for free download

Ø Two dimensional (2D) Bravais Lattice

Ø Square Lattice

Ø Rectangular Lattice

Ø Central Rectangular Lattice

Ø Oblique lattice

Ø Hexagonal lattice

Ø Primitive Unit Cell

It is the basic unit of crystal Lattice. “A cell which contains minimum area in two dimensions and minimum volume in three dimensions is known as primitive Unit Cell.”

Ø Conventional Cell

Ø Wigner Seitz Primitive Cell

Ø Lattice Constants

Ø Fundamental Translational Vectors

Ø Translational Vectors

Ø Number of Lattice Point per unit cell

Ø Simple cubic

Ø Body-Centered Cubic (bcc) Cell

Ø Face Centered Cubic (Fcc) Cell

Ø Symmetry Planes of a cube

Ø Parallel Plane of Symmetry

Ø Diagonal Planes

Ø Index system for Crystal planes or Miller Indices for Crystal Planes

Ø Notable points about Miller Indices

Ø General Formulas

Ø Simple Crystal structure

Ø Structure of Sodium Chloride

Also read :Solid State physics-1 Chapter No.4 complete notes for free download

Ø Cesium Chloride Structure

Ø Diamond

Ø Atomic packing Fraction

The packing fraction tells elements of an atom in a crystal.

The fraction of space is occupied by the atom in the unit cell.

The maximum portion of the unit cell occupied by the atom

Ø Packing Fraction of Simple Cube

Ø Packing Fraction of simple Cube (SC)

Ø Packing Fraction of body-centered cubic Cell

Ø Packing fraction of face-centered cubic crystal

Ø Interplanar Distance

The perpendicular distance b/w two parallel planes are known as interplanar distance.

Ø Symmetry Operations

The symmetry operation is defined as the operation which leaves the crystal and its environment invariant.

If the operation exchanges the lattice point and the resultant lattice is identical in symmetry of the arrangement of point to the first lattice before the operation.

Ø There are following symmetric operations

I. Translation

II. Rotation

III. Reflection

IV. Inversion

V. Glide (Reflection + Translation)

VI. Screw (Rotation + Translation)

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