Page 27 - CatalogNEP-PS

Langevin Theory of dia– and Paramagnetic Domains. Quantum Mechanical Treatment of
Paramagnetism. Curie‟s law, Weiss‟s Theory of Ferromagnetism and Ferromagnetic Domains, B-
H Curve. Hysteresis, soft and hard material and Energy Loss.
Superconductivity: Experimental Results. Critical Temperature. Critical magnetic field.
Meissner effect. Type I and type II Superconductors, London‟s Equation and Penetration Depth.
Isotope effect. Idea of BCS theory (No derivation)
UNIT-V (10 Hours)

Dielectric Properties of Materials: Polarization. Local Electric Field at an Atom. Depolarization
Field. Electric Susceptibility. Polarizability. Clausius Mosotti Equation. Classical Theory of
Electric Polarizability. Normal and Anomalous Dispersion. Cauchy and Sellmeir relations.
Langevin-Debye equation. Complex Dielectric Constant.
Ferroelectric Properties of Materials: Classification of crystals, Piezoelectric effect,
Pyroelectric effect, Ferroelectric effect, Electrostrictive effect, Curie-Weiss Law, Ferroelectric
domains, PE hysteresis loop.

PRACTICAL(30 Hours)

Every student must perform at least 6 experiments from the following list.
1. Measurement of susceptibility of paramagnetic solution (Quinck`s Tube Method)
2. To measure the Magnetic susceptibility of Solids.
3. To determine the Coupling Coefficient of a Piezoelectric crystal.
4. To measure the Dielectric Constant of a dielectric Materials with frequency.
5. To determine the complex dielectric constant and plasma frequency of metal using Surface
Plasmon resonance (SPR) technique.
6. To determine the refractive index of a dielectric using SPR technique.
7. To study the PE Hysteresis loop of a Ferroelectric Crystal.
8. To draw the BH curve of Fe using Solenoid & determine energy loss from Hysteresis.
9. To measure the resistivity of a semiconductor (Ge) with temperature (up to 150oC) by
four-probe method and to determine its band gap.
10. To determine the Hall coefficient of a semiconductor sample.
11. To measure the resistivity of a semiconductor (Ge) with temperature by two-probe method
and to determine its band gap.
12. Analysis of X-Ray diffraction data in terms of unit cell parameters and estimation of
particle size.
13. Measurement of change in resistance of a semiconductor with magnetic field.

SUGGUESTED READINGS:

1. Introduction to Solid State Physics, Charles Kittel, 8th Edn., 2004, Wiley India Pvt. Ltd.
2. Elements of Solid State Physics, J.P. Srivastava, 2nd Edn., 2006, Prentice-Hall of India.
3. Introduction to Solids, Leonid V. Azaroff, 2004, Tata Mc-Graw Hill.
4. Solid State Physics, N.W. Ashcroft and N.D. Mermin, 1976, Cengage Learning.
5. Solid-state Physics, H.Ibach and H. Luth, 2009, Springer.
6. Solid State Physics, Rita John, 2014, McGraw Hill
7. Solid State Physics, M.A. Wahab, 2011, Narosa Publications.
8. Advanced Practical Physics for students, B.L. Flint and H.T. Worsnop, 1971, Asia
Publishing House.
9. A Text Book of Practical Physics, I.Prakash& Ramakrishna, 11th Ed., 2011, Kitab Mahal
10. Elements of Solid State Physics, J.P. Srivastava, 2nd Ed., 2006, Prentice-Hall of India.

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