Statistical and Solid State Physics (Theory)

Paper Code: 
24DPHY813
Credits: 
06
Contact Hours: 
90.00
Max. Marks: 
100.00
Objective: 
Course Objectives:
This course will enable the students to– 
• provide knowledge of Partition functions, Statistics, Band Theory  of solids to solve to various types of applications and problems
• make students able to apply knowledge acquired from this paper to realistic problems of Condensed Matter and Solid State Physics.
 
Course Outcomes: 

Course outcomes (COs):

Course

Learning outcomes

(at course level)

Learning and teaching strategies

Assessment

Strategies

Course Code

Course Title

 

 

 

24DPHY813

 

 

 

Statistical and Solid State Physics

 (Theory)

 

 

 

CO197: Discuss the basic principles of Canonical, Grand Canonical ensembles and apply to solve different applications.

CO198: Develop the basic knowledge of Partition functions, Statistics, partition function for an ideal gas and determine thermodynamic quantities and Specific heat of an ideal diatomic gas.

CO199: Explain the quantum distribution functions like Bose Einstein and Fermi-Dirac statistics and apply them to solve Planck's formula, Bose Einstein condensation and know about quantization of harmonic oscillator and Fermion operators, creation and annihilation of phonon operators.

CO200: Build the basic idea about Theory of Metals, use of Fermi-Dirac statistics in the calculation to solve thermal conductivity and electrical conductivity, Drude theory of light, absorption in metals.

CO201: Develop basic knowledge of band theory, Bloch theorem, K.P. model, NFE model, tight binding method and pseudo-potential method.

CO202: Contribute effectively in Course specific interaction.

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 numericals.Additional learning through online videos and MOOC courses.

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

 

18.00
Unit I: 
Basic Principles, Canonical and Grand Canonical ensembles :
Concept of statistical distribution, phase space, density of states ,Liouville's theorem, systems and ensemble, entropy in statistical mechanics, Connection between thermodynamic and statistical quantities, micro canonical ensemble, equation of state, specific heat and entropy of a perfect gas using microcanonical ensemble.
Canonical ensemble, thermodynamic functions for the canonical ensemble, calculation of mean value, energy fluctuation in a gas, grand canonical ensemble, thermodynamic functions for the grand canonical ensemble, density fluctuations.
18.00
Unit II: 
Partition functions and Statistics :

 Partition functions and properties, partition function for an ideal gas and calculation of thermodynamic quantities, Gibbs Paradox, validity of classical approximation, determination of translational, rotational and vibration contributions to the partition function of an ideal diatomic gas. Specific heat of a diatomic gas, ortho and para hydrogen.

18.00
Unit III: 
Identical particles:
Identical particles and symmetry requirement, difficulties with Maxwell-Boltzmann statistics, quantum distribution functions, Bose Einstein and Fermi-Dirac statistics and Planck's formula, Bose Einstein condensation, liquid He4 as a Boson system, quantization of harmonic oscillator and creation and annihilation of phonon operators, quantization of fermion operators.
 
18.00
Unit IV: 
Theory of Metals:

Fermi-Dirac distribution function, density of states, temperature dependence of Fermi energy, specific heat, use of Fermi-Dirac statistics in the calculation of thermal conductivity and electrical conductivity, Drude theory of light, absorption in metals. 

18.00
Unit V: 
Band Theory:

Bloch theorem, Kroning Penny model, effective mass of electrons, Wigner-Seitz approximation, NFE model, tight binding method and calculation of density for a band in simple cubic lattice, pseudo potential method.

Essential Readings: 
• “Elementray statistical mechanics”, Kittle.
• “Introduction to solid state physics”. Kittle.
 
References: 
• ” Fundamentals of Statistical and Thermodynamical Physics”, Reif.
• “Statistical mechanics and Thermal Physics”, Rice.
• “Statistical Mechanics “,Huag.
• “Solid State Physics”. Palteros.
• “Solid State Physics.” Levy.
 
E - content:
 
Academic Year: 
2024-2025
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