PH8203 Syllabus APPLIED PHYSICS Regulation 2017 Anna University

PH8203 Syllabus OBJECTIVES:

To illustrate, with suitable examples, the functioning of conductors, semiconductors, dielectric, magnetic and superconducting materials.
To make the students familiarize with the optical properties of materials.

PH8203 Syllabus UNIT I ELECTRICAL PROPERTIES OF MATERIALS

Classical free electron theory – Expression for electrical conductivity – Thermal conductivity, expression – Wiedemann-Franz law – Success and failures – Quantum free electron theory – Particle in a finite potential well – Tunneling- Particle in a three dimensional box – degenerate states – Fermi- Dirac statistics – Density of energy states – Electron in periodic potential – Energy bands in solids – tight binding approximation – Electron effective mass – effective number of free electrons – concept of hole.

PH8203 Syllabus UNIT II SEMICONDUCTOR PHYSICS

Intrinsic Semiconductors – Energy band diagram – direct and indirect band gap semiconductors – Carrier concentration in intrinsic semiconductors – extrinsic semiconductors – Carrier concentration in N-type & P-type semiconductors – Variation of carrier concentration with temperature – Carrier transport in Semiconductors: Drift, mobility and diffusion – four-probe and Hall effect and devices – Ohmic contacts – Schottky diode.

PH8203 Syllabus UNIT III DIELECTRICS AND FERROELECTRICS

Macroscopic description of the static dielectric constant. The electronic and ionic polarizabilities of molecules – orientational polarization – Measurement of the dielectric constant of a solid. The internal field – Lorentz, Clausius-Mosotti relation. Behaviour of dielectrics in an alternating field, elementary ideas on dipole relaxation, – Piezo, pyro and ferroelectric properties of crystals -classification of ferroelectric crystals – BaTiO3 and KDP.

PH8203 Syllabus UNIT IV MAGNETISM AND SUPERCONDUCTIVITY

Atomic magnetic moment – classification of magnetic materials: diamagnetism, paramagnetism, ferromagnetism, antiferromagnetism and ferrimagnetism – Ferromagnetism: saturation magnetization and Curie temperature – exchange interaction – Domain theory – M versus H behavior – soft and hard magnetic materials -. Quantum Hall effect – Superconductivity – Zero resistance and the Meissner effect – Type I and Type II superconductors – critical current density – BCS theory of superconductivity – Elements of high temperature superconductivity (basic concepts only).

PH8203 Syllabus UNIT V OPTICAL PROPERTIES OF MATERIALS

Light waves in a homogeneous medium – refractive index – dispersion: refractive index-wave-length behaviour – group velocity and group index – NLO materials – phase matching – SHG, sum frequency generation, parametric oscillations – difference frequency generation (qualitative)- applications- – complex refractive index and light absorption – Luminescence, phosphors and white LEDs – polarization – optical anisotropy: uniaxial crystals, birefringence, dichroism – electro-optic effect and amplitude modulators- electro-absorption.

TOTAL : 45 PERIODS

PH8203 Syllabus OUTCOMES:

At the end of the course, the students will able to

Gain knowledge on classical and quantum electron theories, and energy band structures,
Acquire knowledge on basics of semiconductor physics and its applications in various devices,
Get knowledge on the functioning of dielectric and ferroelectric materials,
Have the necessary understanding on magnetic and superconducting properties of materials,
Understand the basics of nonlinear optical materials and their applications in optical modulators.

PH8203 Syllabus TEXT BOOKS:

Kasap, S.O. ―Principles of Electronic Materials and Devices‖, McGraw-Hill Education, 2007.
Umesh K Mishra & Jasprit Singh, ―Semiconductor Device Physics and Design‖, Springer, 2008.
Wahab, M.A. ―Solid State Physics: Structure and Properties of Materials‖. Narosa Publishing House, 2009.

PH8203 Syllabus REFERENCES:

1. Askeland, D. ―Materials Science and Engineering‖. Brooks/Cole, 2010.

2. Smith, W.F., Hashemi, J. & Prakash, R. ―Materials Science and Engineering‖. Tata McGraw Hill Education Pvt. Ltd., 2014.

3. Balasubramaniam, R. ―Callister’s Materials Science and Engineering‖. Wiley India Pvt. Ltd., 2014.

Subject Name	APPLIED PHYSICS
Subject Code	PH8203
Regulation	2017
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