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SOLID STATE PHYSICS [1]

Paper Code: 
PHY 421
Credits: 
04
Contact Hours: 
60.00
Max. Marks: 
100.00
12.00
Unit I: 
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. 
 
12.00
Unit II: 
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. 

 
12.00
Unit III: 
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. 
 
12.00
Unit IV: 
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.
 
12.00
Unit V: 
UNIT 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: 
1. Kittel - Introduction to Solid State Physics, 5th Edition (John Wiley). 
2. Levy-Solid State Physics. 
3. Patterson - Solid State Physics. 
4. Mckelvy - Solid State and Semi-conductor Physics. 
 
 
 
 
 
Academic Year: 
2017-2018 [2]

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[1] https://physics.iisuniv.ac.in/courses/subjects/solid-state-physics-1
[2] https://physics.iisuniv.ac.in/academic-year/2017-2018