NOC:Concepts in Magnetism and Superconductivity

Media Storage Type : 32 GB USB Stick

NPTEL Subject Matter Expert : Prof. A Taraphder

NPTEL Co-ordinating Institute : IIT Kharagpur

NPTEL Lecture Count : 40

NPTEL Course Size : 3.4 GB

NPTEL PDF Text Transcription : Available and Included

NPTEL Subtitle Transcription : Available and Included (SRT)

Lecture Titles:

Lecture 1 - Introduction: Magnetism and superconductivity as macroscopic quantum phenomena
Lecture 2 - Bohr magneton, BvL theorem
Lecture 3 - An electron in a magnetic field, magnetism of isolated atoms
Lecture 4 - Magnetism of isolated atoms (Continued...), Diamagnetism
Lecture 5 - Magnetism of atoms-dia and paramagnetic susceptibilities. Hund's rules,Van Vleck paramagnetism
Lecture 6 - Van Vleck paramagnetism (Continued...), Paramagnetism
Lecture 7 - Curie's law for arbitrary J, adiabatic demagnetization
Lecture 8 - Paramagnetism of conduction electrons - Pauli paramagnetism
Lecture 9 - Ions in a solid: crystal field, orbital quenching, Jahn-Teller effect
Lecture 10 - Jahn-Teller effect (Continued...), Magnetic resonance techniques NMR, ESR
Lecture 11 - Resonance techniques (Continued...), Recapitulation and overview
Lecture 12 - Recapitulation, interacting moments and long range order, dipolar exchange
Lecture 13 - Interacting moments, 2-electron system, origin of exchange and spin Hamiltonian
Lecture 14 - Spin Hamiltonian, Heisenberg model, Exchange interactions: direct
Lecture 15 - GMR, spin model and mean-field theory, Ising model
Lecture 16 - Ising model and its properties
Lecture 17 - Ising model and its properties (Continued...), absence of LRO in d=1, mean-field theory
Lecture 18 - Ising model recap, applications, exact solutions
Lecture 19 - Exact solution of Ising model in d=1, exact results in d=2. Mermin-Wagner theorem
Lecture 20 - Recap - Exact solution of Ising model. Mermin-Wagner theorem on the absence
Lecture 21 - Ferromagnetic Heisenberg model ground state
Lecture 22 - Ferromagnetic Heisenberg model, spin-waves and magnons
Lecture 23 - Antiferromagnetic Heisenberg model, AF magnetic structures
Lecture 24 - AF magnetic structures, susceptibility and excitations
Lecture 25 - Antiferromagnets and frustration, spin glass
Lecture 26 - Superconductivity: discovery, properties
Lecture 27 - Superconductivity: Meissner effect, London Equation
Lecture 28 - Electron-phonon interaction, Cooper problem
Lecture 29 - Cooper problem, setting up the BCS theory
Lecture 30 - BCS wave function, the Superconducting state and calculations of various properties
Lecture 31 - BCS theory (Continued...), energy gap, transition temperature
Lecture 32 - Consequences of BCS theory, gap vs T, Transition temperature, specific heat, tunnelling
Lecture 33 - Transition temperature, specific heat, tunnelling
Lecture 34 - Andreev reflection, Ginzburg-Landau Theory and electrodynamics of superconductors
Lecture 35 - Ginzburg-Landau theory, coherence length and Type I and II superconductors
Lecture 36 - Flux lattice, Flux quantization, Josephson junctions
Lecture 37 - Josephson effect and Josephson junctions
Lecture 38 - SQUID, Quantum computers and Josephson junction Qubits
Lecture 39 - High-Temperature Superconductivity: an enduring enigma
Lecture 40 - Overview and conclusion