Details of PH4101 (Autumn 2019)
Level: 4  Type: Theory  Credits: 4.0 
Course Code  Course Name  Instructor(s) 

PH4101  Basic Condensed Matter Physics  Goutam Dev Mukherjee 
Preamble 

This course provides an introduction to a bunch of basic phenomena that collectively define Condensed Matter Physics or Solid State Physics. Emphasis will be given on developing a coherent path for understanding the set of rather diverse phenomena.

Syllabus 

(1) Introduction and motivation for Condensed Matter Physics (CMP)
Review of Qtm. & Stat. Mech (if required) Discussion of energy scales of CMP The BornOppenheimer Approximation (2) Free (independent) electron gas: Quantum mechanics of FEG (T=0) Thermodynamics of FEG (T/=0), observables Cv, DOS etc. (3) Perfect Lattice and its vibration: Linear chain in 1D, phonons and Hamiltonian describing lattice vibration. Thermodynamics of 1D chain, phonon contribution to Cv, DOS etc. Vibrational modes for linear chain with basis and in higher dimensions (4) Ionic/Nuclear perfect Lattices: 2 and 3D Bravais lattices, unit cells Reciprocal lattice, lattice planes, X'tal directions, diffraction Xray study of X'tals (5) Independent electrons on Periodic Lattice: Free electrons on a perfect lattice  Bloch's theorem Concept of energy bands Free electrons weakly bound to lattice  Perturbation theory Free electrons tightly bound to lattice  tight binding model Free electrons versus Bloch electrons Physical examples: conductivity, Hall Effects etc for Bloch electrons. (7) Semiconductors: Introduction from Band theory  electron & hole density in eqlbm Intrinsic and extrinsic semiconductors dopants, poplation of dopant levels  importance for technology (8) Magnetism with nonint el/atoms: Magnetic dipole moment, dynamics of classical mag dipole in field magnetic susceptibility and classifications e.g. para, dia, ferro antiferromagnets Larmor/Langevin diamagnetism, Landau levels  Landau diamagnetism Atomic magnetism  Hund's rule 1, 2 and 3. Curie Law Magnetism of metals  Pauli paramagnetism (9) Basic Phenomenology of Superconductivity: Meissner Effect, Energy gap, London's theory, and the experimental observations that collectively define superconductivity. 
Prerequisite 

Quantum and Statistical Mechanics courses from Level 3

References 

Long List of References:
(1) Solid State Physics, N. W. Ashcroft and N. D. Mermin, Saunders College Publishing, 1976. (2) Introduction to Solid State Physics, 8th Ed., C. Kittel, John Wiley & Sons, Inc., 2005. (3) Condensed Matter Physics, M. P. Marder, John Wiley & Sons, Inc. 2000. (4) SolidState Physics, H. Ibach and H. Luth, Springer, 2009 (5) Band Theory and Electronic Properties of Solids, John Singleton, Oxford Univ Press, 2001. Short List of References: (1) Solid State Physics, N. W. Ashcroft and N. D. Mermin, Saunders College Publishing, 1976. (2) Introduction to Solid State Physics, 8th Ed., C. Kittel, John Wiley & Sons, Inc., 2005.] 
Course Credit Options
Sl. No.  Programme  Semester No  Course Choice 

1  IP  1  Not Allowed 
2  IP  3  Core 
3  IP  5  Not Allowed 
4  MR  1  Elective 
5  MR  3  Not Allowed 
6  MS  7  Core 
7  RS  1  Elective 
8  RS  2  Elective 