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Lecture 20 of 66WEEK 4

Lecture 20 : Energy spectrum (Contd.)

Prof. Arghya Taraphder · IIT Kharagpur

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Electronic Theory of Solids, IIT Kharagpur (at NPTEL)
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All the lectures

  1. Lecture 01: Free electrons: Drude Theory Video
  2. Lecture 02: Weidemann Franz Law Video
  3. Lecture 03: Drude Model continued: Hall Effect Video
  4. Lecture 04: Schrodinger Equation: Boundary Conditions Video
  5. Lecture 05: Density of States Video
  6. Lecture 06: "Properties of Degenerate Fermi Gas " Video
  7. Lecture 07: Statistics Fermi-Dirac distribution and Maxwell-Boltzmann Distribution: comparison and Specific Heat Video
  8. Lecture 08: Sommerfeld Expansion & Band Formation: Temperature dependent densities, Chemical Potential, Specific Heat Video
  9. Lecture 09: Bonding and Band Formation: N=2 solid Molecular Orbitals, Linear combinations of Atomic Orbitals(LCAO) Video
  10. Lecture 10: Variational Method: Molecular Orbitals, Bonding and anti-bonding Orbitals Video
  11. Lecture 11 : Bonding and Band Formation(LCAO) Video
  12. Lecture 12 : Bonding and Band Formation(LCAO) (Contd.) Video
  13. Lecture 13 : Bloch's Theorem Video
  14. Lecture 14 : Proof of Bloch's Theorem Video
  15. Lecture 15 : N atoms Solid Video
  16. Lecture 16 : Brillouin Zones Video
  17. Lecture 17 : Tight binding: lattice with a basis Video
  18. Lecture 18 : Fermi Surfaces Video
  19. Lecture 19 : Lattice with basis:Energy Spectrum Video
  20. Lecture 20 : Energy spectrum (Contd.) Video
  21. Lecture 21 : Graphene and Fermi Surfaces Video
  22. Lecture 22 : Fermi Surfaces Instabilities Video
  23. Lecture 23 : Low Dimensional Systems Video
  24. Lecture 24 :Integer Quantum Hall Effect (IQHE) Video
  25. Lecture 25 : Integer Quantum Hall Effect Continued Video
  26. Lecture 26 : Electron in a Strong Magnetic Field and IQHE Video
  27. Lecture 27 : Spintronics: Introduction and Applications Video
  28. Lecture 28 : Magnetism Video
  29. Lecture 29 : Magnetism: Quantum Theory Video
  30. Lecture 30 : Hund's Rule Video
  31. Lecture 31 : Curie's Law and Van Vleck Paramagnetism Video
  32. Lecture 32 : Curie's law for any J, Susceptibility Video
  33. Lecture 33 : Susceptibility and Thermal Properties Video
  34. Lecture 34 : Adiabatic Demagnetisation Video
  35. Lecture 35 : Pauli Paramagnetism Video
  36. Lecture 36: Paramagnetism of metals Video
  37. Lecture 37: Exchange interaction for 2 electrons Video
  38. Lecture 38: Exchange interactions of different types Video
  39. Lecture 39: Magnetic Order Video
  40. Lecture 40: Magnetic Order of different types & Heisenberg model Video
  41. Lecture 41: Ising Model Video
  42. Lecture 42: Mean Field Theory Video
  43. Lecture 43: Spontaneous magnetisation & 1D Ising Model Video
  44. Lecture 44: Symmetries of Ising model, Exact Solution Video
  45. Lecture 45: Ferromagnetic Heisenberg Model Video
  46. Lecture 46: Ground State & Magnons/Excitations Video
  47. Lecture 47: Superconductivity Video
  48. Lecture 48: London Equation Video
  49. Lecture 49: Meisner Effect from London Equation Video
  50. Lecture 50: Cooper problem Video
  51. Lecture 51: Instability of the Fermi Surface Video
  52. Lecture 52: Ground state of cooper problem, BCS Ground state, Video
  53. Lecture 53: BCS Theory, Excitation Spectrum Video
  54. Lecture 54: BCS Video
  55. Lecture 55: Tunneling and Ginzberg Landau Theory Video
  56. Lecture 56: Electrodynamics of Superconductivity Video
  57. Lecture 57: Type II superconductors Video
  58. Lecture 58: Josephson junction Video
  59. Lecture 59: Vortices, SQUID, Quantum Supremacy & Qubits Video
  60. Lecture 60: Topological state of matter, XY Model, Topological Insulators Video
  61. Live Session 08-02-2021 Video
  62. Live Session 10-03-2021 Video
  63. Live Session 31-03-2021 Video
  64. Live Session 17-02-2020 Video
  65. Live Session 03-09-2022 Video
  66. Live Session 17-02-2025 Video