# Electronic Theory of Solids

- Institution: IIT Kharagpur
- Department: Physics
- Teacher: Prof. Arghya Taraphder
- Level: Undergraduate
- Language: English
- Subjects: Physics
- Source: [NPTEL](https://nptel.ac.in/courses/115105122)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/115105122)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

## Lectures

1. [Lecture 01: Free electrons: Drude Theory](https://invisiblenetwork.ai/learn/nptel/115105122/39772f2548b8) (Video)
2. [Lecture 02: Weidemann Franz Law](https://invisiblenetwork.ai/learn/nptel/115105122/58022119dc67) (Video)
3. [Lecture 03: Drude Model continued: Hall Effect](https://invisiblenetwork.ai/learn/nptel/115105122/2680b2662218) (Video)
4. [Lecture 04: Schrodinger Equation: Boundary Conditions](https://invisiblenetwork.ai/learn/nptel/115105122/ba8d58770126) (Video)
5. [Lecture 05: Density of States](https://invisiblenetwork.ai/learn/nptel/115105122/0f48427221e0) (Video)
6. [Lecture 06: "Properties of Degenerate Fermi Gas "](https://invisiblenetwork.ai/learn/nptel/115105122/27a1f3165f64) (Video)
7. [Lecture 07: Statistics Fermi-Dirac distribution and Maxwell-Boltzmann Distribution: comparison and Specific Heat](https://invisiblenetwork.ai/learn/nptel/115105122/bea4aebc124c) (Video)
8. [Lecture 08: Sommerfeld Expansion & Band Formation: Temperature dependent densities, Chemical Potential, Specific Heat](https://invisiblenetwork.ai/learn/nptel/115105122/070563e9a833) (Video)
9. [Lecture 09: Bonding and Band Formation: N=2 solid Molecular Orbitals, Linear combinations of Atomic Orbitals(LCAO)](https://invisiblenetwork.ai/learn/nptel/115105122/777986a8b28f) (Video)
10. [Lecture 10: Variational Method: Molecular Orbitals, Bonding and anti-bonding Orbitals](https://invisiblenetwork.ai/learn/nptel/115105122/654fe4abeb15) (Video)
11. [Lecture 11 : Bonding and Band Formation(LCAO)](https://invisiblenetwork.ai/learn/nptel/115105122/b2cd47a0053d) (Video)
12. [Lecture 12 : Bonding and Band Formation(LCAO) (Contd.)](https://invisiblenetwork.ai/learn/nptel/115105122/ac6265e228ef) (Video)
13. [Lecture 13 : Bloch's Theorem](https://invisiblenetwork.ai/learn/nptel/115105122/2aaa20043b0c) (Video)
14. [Lecture 14 : Proof of Bloch's Theorem](https://invisiblenetwork.ai/learn/nptel/115105122/b1c90a434fe2) (Video)
15. [Lecture 15 : N atoms Solid](https://invisiblenetwork.ai/learn/nptel/115105122/461f17ea785a) (Video)
16. [Lecture 16 : Brillouin Zones](https://invisiblenetwork.ai/learn/nptel/115105122/fbe20cc3ecd5) (Video)
17. [Lecture 17 : Tight binding: lattice with a basis](https://invisiblenetwork.ai/learn/nptel/115105122/f642120374c2) (Video)
18. [Lecture 18 : Fermi Surfaces](https://invisiblenetwork.ai/learn/nptel/115105122/ed342b37a7b1) (Video)
19. [Lecture 19 : Lattice with basis:Energy Spectrum](https://invisiblenetwork.ai/learn/nptel/115105122/c8897fdb15c0) (Video)
20. [Lecture 20 : Energy spectrum (Contd.)](https://invisiblenetwork.ai/learn/nptel/115105122/b053602ef9d5) (Video)
21. [Lecture 21 : Graphene and Fermi Surfaces](https://invisiblenetwork.ai/learn/nptel/115105122/aebcb6bc8432) (Video)
22. [Lecture 22 : Fermi Surfaces Instabilities](https://invisiblenetwork.ai/learn/nptel/115105122/0a17d250cf07) (Video)
23. [Lecture 23 : Low Dimensional Systems](https://invisiblenetwork.ai/learn/nptel/115105122/b8a4134f97a3) (Video)
24. [Lecture 24 :Integer Quantum Hall Effect (IQHE)](https://invisiblenetwork.ai/learn/nptel/115105122/9e786e90d228) (Video)
25. [Lecture 25 : Integer Quantum Hall Effect Continued](https://invisiblenetwork.ai/learn/nptel/115105122/e3a6a0b7d6b6) (Video)
26. [Lecture 26 : Electron in a Strong Magnetic Field and IQHE](https://invisiblenetwork.ai/learn/nptel/115105122/2f952a8b4309) (Video)
27. [Lecture 27 : Spintronics: Introduction and Applications](https://invisiblenetwork.ai/learn/nptel/115105122/8b8e6bfcf20e) (Video)
28. [Lecture 28 : Magnetism](https://invisiblenetwork.ai/learn/nptel/115105122/78f54779cfc5) (Video)
29. [Lecture 29 : Magnetism: Quantum Theory](https://invisiblenetwork.ai/learn/nptel/115105122/bc806b08ce76) (Video)
30. [Lecture 30 : Hund's Rule](https://invisiblenetwork.ai/learn/nptel/115105122/c62794707929) (Video)
31. [Lecture 31 : Curie's Law and Van Vleck Paramagnetism](https://invisiblenetwork.ai/learn/nptel/115105122/49dd82844781) (Video)
32. [Lecture 32 : Curie's law for any J, Susceptibility](https://invisiblenetwork.ai/learn/nptel/115105122/4b95f0471c9e) (Video)
33. [Lecture 33 : Susceptibility and Thermal Properties](https://invisiblenetwork.ai/learn/nptel/115105122/b4de608e7636) (Video)
34. [Lecture 34 : Adiabatic Demagnetisation](https://invisiblenetwork.ai/learn/nptel/115105122/391ac5a82832) (Video)
35. [Lecture 35 : Pauli Paramagnetism](https://invisiblenetwork.ai/learn/nptel/115105122/2ebad9db3060) (Video)
36. [Lecture 36: Paramagnetism of metals](https://invisiblenetwork.ai/learn/nptel/115105122/2dbbb249a622) (Video)
37. [Lecture 37: Exchange interaction for 2 electrons](https://invisiblenetwork.ai/learn/nptel/115105122/7b95bb3b3b42) (Video)
38. [Lecture 38: Exchange interactions of different types](https://invisiblenetwork.ai/learn/nptel/115105122/42d66ee56200) (Video)
39. [Lecture 39: Magnetic Order](https://invisiblenetwork.ai/learn/nptel/115105122/2eea86eb99db) (Video)
40. [Lecture 40: Magnetic Order of different types & Heisenberg model](https://invisiblenetwork.ai/learn/nptel/115105122/1cfdae8e93aa) (Video)
41. [Lecture 41: Ising Model](https://invisiblenetwork.ai/learn/nptel/115105122/53ed194f567c) (Video)
42. [Lecture 42: Mean Field Theory](https://invisiblenetwork.ai/learn/nptel/115105122/41883a908569) (Video)
43. [Lecture 43: Spontaneous magnetisation & 1D Ising Model](https://invisiblenetwork.ai/learn/nptel/115105122/61a5f1c2734d) (Video)
44. [Lecture 44: Symmetries of Ising model, Exact Solution](https://invisiblenetwork.ai/learn/nptel/115105122/d54d3873b37b) (Video)
45. [Lecture 45: Ferromagnetic Heisenberg Model](https://invisiblenetwork.ai/learn/nptel/115105122/f8e4f88fca55) (Video)
46. [Lecture 46: Ground State & Magnons/Excitations](https://invisiblenetwork.ai/learn/nptel/115105122/226621d0ba5a) (Video)
47. [Lecture 47: Superconductivity](https://invisiblenetwork.ai/learn/nptel/115105122/5cd1c27e4ad3) (Video)
48. [Lecture 48: London Equation](https://invisiblenetwork.ai/learn/nptel/115105122/6577ef124f2b) (Video)
49. [Lecture 49: Meisner Effect from London Equation](https://invisiblenetwork.ai/learn/nptel/115105122/ffcfe2b159d4) (Video)
50. [Lecture 50: Cooper problem](https://invisiblenetwork.ai/learn/nptel/115105122/6dfa6f35e2e9) (Video)
51. [Lecture 51: Instability of the Fermi Surface](https://invisiblenetwork.ai/learn/nptel/115105122/0e2685b5fccc) (Video)
52. [Lecture 52: Ground state of cooper problem, BCS Ground state,](https://invisiblenetwork.ai/learn/nptel/115105122/c1333daac33a) (Video)
53. [Lecture 53: BCS Theory, Excitation Spectrum](https://invisiblenetwork.ai/learn/nptel/115105122/9d6d0090190f) (Video)
54. [Lecture 54: BCS](https://invisiblenetwork.ai/learn/nptel/115105122/5d64a903e0e5) (Video)
55. [Lecture 55: Tunneling and Ginzberg Landau Theory](https://invisiblenetwork.ai/learn/nptel/115105122/4b81648e2ced) (Video)
56. [Lecture 56: Electrodynamics of Superconductivity](https://invisiblenetwork.ai/learn/nptel/115105122/7f71ed757388) (Video)
57. [Lecture 57: Type II superconductors](https://invisiblenetwork.ai/learn/nptel/115105122/03abf5f8332f) (Video)
58. [Lecture 58: Josephson junction](https://invisiblenetwork.ai/learn/nptel/115105122/62d7ed075a73) (Video)
59. [Lecture 59: Vortices, SQUID, Quantum Supremacy & Qubits](https://invisiblenetwork.ai/learn/nptel/115105122/cfcb01968ccc) (Video)
60. [Lecture 60: Topological state of matter, XY Model, Topological Insulators](https://invisiblenetwork.ai/learn/nptel/115105122/0147849ed420) (Video)
61. [Live Session 08-02-2021](https://invisiblenetwork.ai/learn/nptel/115105122/39772f2548b8-2) (Video)
62. [Live Session 10-03-2021](https://invisiblenetwork.ai/learn/nptel/115105122/58022119dc67-2) (Video)
63. [Live Session 31-03-2021](https://invisiblenetwork.ai/learn/nptel/115105122/2680b2662218-2) (Video)
64. [Live Session 17-02-2020](https://invisiblenetwork.ai/learn/nptel/115105122/ba8d58770126-2) (Video)
65. [Live Session 03-09-2022](https://invisiblenetwork.ai/learn/nptel/115105122/0f48427221e0-2) (Video)
66. [Live Session 17-02-2025](https://invisiblenetwork.ai/learn/nptel/115105122/27a1f3165f64-2) (Video)