Condensed Matter Physics and Devices

Paper Code: 
PHY-412
Credits: 
03
Contact Hours: 
45.00
Max. Marks: 
100.00
Objective: 

This course will enable the students to - 

To familiarize the students with the basics of condensed matter physics which form the basis for further studies in condensed matter physics. The students get acquainted with the crystal structure, properties of solids, superconductivity and magnetism which strengthens the theoretical base for research in contemporary fields of condensed matter physics, like imperfect solids and nano particle physics. The students acquire abilities to undergo research or involve in business related to material science.

 

Course Outcomes (COs):

 

Course

Learning outcome (at course level)

Learning and teaching strategies

Assessment Strategies

Paper Code

Paper Title

PHY 412

Condensed Matter Physics And Devices (Theory)

 

This course will enable the students to -

 

CO100: A brief idea about crystalline and amorphous substances, about lattice, unit cell, miller indices, Crystal structure, diffraction of X-rays by crystalline materials.

 

CO101: Knowledge of lattice vibrations, phonons and in depth of knowledge of Einstein and Debye theory of specific heat of solids.

 

CO102: Understanding of the band theory of solids and must be able to differentiate between  insulators, conductors and semiconductors. 

 

CO103: Knowledge about experimental techniques to measure electrical conductivity .and the hall set up to determine the hall coefficient of a semiconductor.

 

CO104: Comprehend the basic theory of superconductors, Type I and II superconductors, their properties and physical concept of BCS theory.

CO105.                 Acquire knowledge of different types of magnetism from diamagnetism to ferromagnetism and hysteresis   loops and energy loss.

 

CO106: Understanding of working of LEDs, photodiode and solar cells.

 

CO107: Knowledge of Operational amplifiers , its characteristics and various applications

Approach in teaching:

Interactive Lectures, Discussion, Tutorials, Power point presentation, Problem Solving

 

 

Learning activities for the students:

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

 

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

 

9.00
Unit I: 
I

Crystal structure: Symmetry elements in crystal, Unit cell, Wigner Seitz cell, fundamental lattice system and types, Miller indices, crystal structures of simple cubic, FCC, BCC, HCP, diamond.

Crystal Diffraction: Bragg’s law, X-ray and neutron diffraction, Rotating crystal method, laue Method and Powder method.

9.00
Unit II: 
II

Thermal Properties of solids: Concepts of thermal energy and Phonons, Einstein theory of specific heat, Debye model of lattice specific heat.

Band theory of solids: Formation of bands, distinction between metals, insulators and semiconductors, periodic potential of a solid, wave function in a periodic lattice and Bloch theorem, Physical origin of effective mass,negative effective mass and holes.

9.00
Unit III: 
III

Electrical conductivity: Drude Lorentz theory of electrical conductivity. Sommerfield theory of conduction in metals, Mathiessen’s Rule, Thermal conductivity and Wiedemann – Franz law, The Hall effect.

Superconductivity: Zero resistivity, Critical temperature, critical magnetic field, Meissner effect, Type I and type II superconductors, BCS theory (Basic idea),High Tc superconductors.

9.00
Unit IV: 
IV

Magnetic Properties: Classification of magnetic material, Diamagnetism, Paramagnetism due to free ions and conduction electrons, Curie’s law, ferromagnetism

Nature and Origin of Weiss molecular field. Domains, hysterisis loop, outline of antiferromagnetism and ferrimagnetisms, ferrites.

9.00
Unit V: 
V

Solid State Devices: Light emitting diode (LED) and its application, Solar cell, SCR.

Operational amplifier: Differential amplifiers, differential gain and CMRR, inverting and non-inverting configurations Applications of op-amp: adder, subtractor, differentiator and integrator.

Field affect Transistor (FET): Classification of various types of FET, constructional details of FET, drain characteristics and baising of FET, operating regions, pinch-off voltage, idea of metal oxide semiconductor field effect transistor (MOSFET).

 

 

 

BOOKS RECOMMENDED

  • “Introduction to Solid State Physics”, C. Kittel, Wiley Eastern, New Delhi, Seventh Edition.
  • “Solid State Physics”, S.O. Pillai, 3rd edition 1999, New Age International, New Delhi.
  • “ElectronicDevices&Circuit Theory”,Boylestad&Nashelsky , Prentice Hall of India.
  • “Solid state physics”, A.J Dekker ,Macmilan India Ltd.
  • “Solid state Physics”, R.L. Singhal, KedarNath Ram Nath Publishers, 2001.
  • “Theory of solids”, L. Azaraf, Tata Mc.Graw Hill Publishing Co.
  •  “Solid State Physics”, S.L. Gupta and V.Kumar, KedarNathRamNath& Co., Meerut
  •  “Electronic Devices and Circuits” ,Soni,Gupta , Dhanpat Rai and Sons.
  • “Elements of Solid State Physics”, J.P.Srivastava, Prentice Hall of India, New Delhi.
Academic Year: 
2020-2021
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