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 the 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 outcomes

(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:

CO103: get the knowledge about the Lattice Dynamics and Optical Properties of Solids.

CO104: understand the basics theory of conductors, semiconductors and get the idea of photoconductivity, photo-luminescence.

CO105: get the knowledge of different kind of defects in crystals like Point’s line, planar and bulk defects, colour centres, F-centre and aggregate centres in alkali halides.

CO106:  get to the knowledge of different types of magnetism from diamagnetism to ferromagnetism and domain theory.

CO107:  understand the basic idea of the theory of superconductivity 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:

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:

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 :

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.

 

References: 
  • 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.

 

Academic Year: 
2021-2022
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