# Applied Physics - II

Below is the syllabus for Applied Physics – II:-

## UNIT-I

Crystal Structure: Crystalline and Amorphous solids, Crystal Structures: lattice translation vector, symmetry operations, space lattice, basis; Unit cell and Primitive cell, Fundamental types of lattice: two-dimensional and three-dimensional Bravais lattices; Characteristics of Unit cells: Simple Cubic (SC), Body-Centered Cubic (BCC), Face Centred Cubic (FCC), Hexagonal Close Packed (HCP) structure; Simple crystal structures; Sodium Chloride, Cesium Chloride, Diamond, Cubic Zinc Sulfide; Miller Indices, Bonding in Solids, Point defects in crystals: Schottky and Frenkel defects.

## UNIT–II

Quantum Theory: Need and origin of Quantum concept, Wave-particle duality, Phase velocity, and group velocity, Uncertainty Principle and Applications; Schrodinger’s wave equation: time-dependent; Physical Significance of wave function

## UNIT–III

Free Electron Theory: Classical free electron theory: electrical conductivity in metals, thermal conductivity in metals, Wiedemann-Franz law, success and drawbacks of free electron theory; Quantum free electron theory: wave function, eigenvalues; Fermi-Dirac distribution function, Density of states, Fermi energy, and its importance, Thermionic Emission (qualitative).
Band Theory of SolidsBloch theorem, Kronig-Penney Model (qualitative), E versus k diagram, Brillouin Zones, Concept of the effective mass of the electron, Energy levels and energy bands, Distinction between metals, insulators and semiconductors, Hall effect and its Applications.

## UNIT-IV

SuperconductivityIntroduction, General features of Superconductors, Meissner effect, Types of superconductors, Elements of BCS theory, London equations, Applications of Superconductivity.
Nanomaterials: Introduction, Synthesis of nanomaterials: Top-down and Bottom-up approach, Sol-Gel and Ball Milling methods, Properties of Nanomaterials, Application of Nanomaterials.

## TEXTBOOKS:

1. P. K. Diwan, Applied Physics for Engineers, Wiley India Pvt. Ltd.
2. S. P. Taneja, Modern Physics for Engineers, R. Chand & Co.

## REFERENCE BOOKS:

1. C. Kittel, Introduction to Solid State Physics, John Wiley & Sons.
2. Arthur Beiser, Concepts of Modern Physics, Tata McGraw-Hill Publishing Company Limited.
3. S. O. Pillai, Solid State Physics, New Age International (P) Limited.
4. C. P. Poole, F. J. Owens, Introduction to Nanotechnology, John Wiley & Sons (Aisa) Pte. Ltd.