SOLID STATE PHYSICS

Paper Code: 
PHY 421
Credits: 
4
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 

This course will enable the students to –

1.     To provide an information about dynamic (lattice vibrations) arrangements of atoms, Semiconductors, Defects in materials, Magnetism & Superconductivity.

2.     To develop an understanding of  the phenomena related to Characteristics of solids ,which will help him/her to take advanced studies or research in this area.

Course outcomes (COs):

                     Course

Learning outcome (at course level)

Learning and teaching strategies

Assessment Strategies

Paper Code

Paper Title

PHY 421

Solid  State Physics

(Theory)

The students will be able to –

CO 123:  Learn about the Lattice Dynamics and Optical Properties of Solids.

CO 124: Understand the physics of insulators, semiconductor and conductors.

CO 125: Knowledge of different kind of defects in crystals.

CO 126:  Knowledge of different types of magnetism from diamagnetism to ferromagnetism.

CO 127:  Understand the basic idea of the theory of superconductors and their properties in the frame of BCS theory.

 

Approach in teaching:

Interactive Lectures, Discussion, Tutorials, , Demonstration, Problem Solving in tutorials.

 

 

 

 

 

 

Learning activities for the students:

Self learning assignments, Effective questions,  Seminar presentation, Solving numerical

Class test, Semester end examinations, Quiz, Solving problems, Assignments, Presentations

 

13.00
Unit I: 
Lattice Dynamics and Optical Properties of Solids
 Interatomic forces and lattice dynamics, simple metals, ionic and covalent crystals, optical phonons and dielectric constants, inelastic neutron scattering, Mossbauer effect. Debye-Waller factor, Anharmonicity, thermal expansion and thermal conductivity, Interaction of electrons and phonons with photons, Direct and indirect transitions, Absorption in insulators, Polarities, one-phonon absorption, optical properties of metals, skin effect and anomalous skin effect. 
 
13.00
Unit II: 
Semiconductors
Semiconductors: Law of mass action, calculation of impurity conductivity, ellipsoidal energy surfaces in Si and Ge, Hall Effect, recombination mechanism, optical transitions and Schockely-Read theory, excitations, photoconductivity, photo-luminescence. Point’s line, planar and bulk defects, colour centres, F-centre and aggregate centres in alkali halides. 
 
13.00
Unit III: 
Magnetism
Magnetism: Larmor diamagnetism. Paramagnetism, Curie-Langevin and Quantum theories, Susceptibility of rare earth and transition metals, Ferromagnetism: Domain theory, Weiss molecular field and exchange, spin waves: dispersion relation and its experimental determination by inelastic neutrons scattering, heat capacity. Nuclear Magnetic resonance: Conditions of resonance, Bloch equations, NMR- experiment and characteristics of an absorption line. 
 
11.00
Unit IV: 
Superconductivity

Superconductivity : Experimental Results : Meissner effect, heat capacity, microwave and infrared properties, isotope effect, flux quantization, ultrasonic attenuation, density of states, nuclear spin relaxation, Giaver and AC and DC Josephson tunnelings.

 
10.00
Unit V: 
V
Cooper pairs and derivation of BCS Hamiltonian, results of BCS Theory (no derivation), High Tc superconductivity, introduction to theories of High Tc superconductors.
 
 
 
 
 
 

BOOKS RECOMMENDED:

  • Kittel - Introduction to Solid State Physics, 5th Edition (John Wiley).
  • Levy-Solid State Physics.
  • Patterson - Solid State Physics.
  • Mckelvy - Solid State and Semi-conductor Physics.

 

References: 
 
 
Academic Year: 
2020-2021
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