# Bonds and Bands in Solids

- Institution: IISc Bangalore
- Department: Physics
- Teacher: S. Ramasesha
- Level: Undergraduate
- Language: English
- Subjects: Physics
- Source: [NPTEL](https://nptel.ac.in/courses/115108127)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/115108127)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

## Lectures

1. [Lec 01 Born-Oppenheimer approximation](https://invisiblenetwork.ai/learn/nptel/115108127/099332a9cd49) (Video)
2. [Lec 02 Self-consistent field (SCF) method](https://invisiblenetwork.ai/learn/nptel/115108127/56a2a07634a8) (Video)
3. [Lec 03 Simple MO Theory of Hydrogen Molecule](https://invisiblenetwork.ai/learn/nptel/115108127/f08d00993fc5) (Video)
4. [Lec 04 Bloch's theorem](https://invisiblenetwork.ai/learn/nptel/115108127/1c0f89cd2fc7) (Video)
5. [Lec 05 Tight binding approximation](https://invisiblenetwork.ai/learn/nptel/115108127/66aece80778e) (Video)
6. [Lec 06 Energy band theory - 1](https://invisiblenetwork.ai/learn/nptel/115108127/9cd1c13e3e0b) (Video)
7. [Lec 07 Energy band theory - 2](https://invisiblenetwork.ai/learn/nptel/115108127/67ebe3e3e392) (Video)
8. [Lec 08 Density of states](https://invisiblenetwork.ai/learn/nptel/115108127/36165a00b496) (Video)
9. [Lec 09 Energy band theory - 3](https://invisiblenetwork.ai/learn/nptel/115108127/8ba444fcbffc) (Video)
10. [Lec 10 Energy band theory - 4](https://invisiblenetwork.ai/learn/nptel/115108127/b5f6ed7d47e7) (Video)
11. [Lec 11 Drude's classical free electron model - 1](https://invisiblenetwork.ai/learn/nptel/115108127/22ca5ef25a14) (Video)
12. [Lec 12 Drude's classical free electron model - 2](https://invisiblenetwork.ai/learn/nptel/115108127/76c655b8ac4d) (Video)
13. [Lec 13 Drude's classical free electron model - 3](https://invisiblenetwork.ai/learn/nptel/115108127/dbc3298a785b) (Video)
14. [Lec 14 Drude's classical free electron model - 4](https://invisiblenetwork.ai/learn/nptel/115108127/bde9cd7e6d0e) (Video)
15. [Lec 15 Sommerfeld's quantum free electron model](https://invisiblenetwork.ai/learn/nptel/115108127/c45d620ec884) (Video)
16. [Lec 16 Specific heat of Fermi gas](https://invisiblenetwork.ai/learn/nptel/115108127/dc74744fc455) (Video)
17. [Lec 17 Energy dispersion relation in a periodic potential - 1](https://invisiblenetwork.ai/learn/nptel/115108127/3c065ba88276) (Video)
18. [Lec 18 Energy dispersion relation in a periodic potential - 2](https://invisiblenetwork.ai/learn/nptel/115108127/2bd70202457b) (Video)
19. [Lec 19 Brief overview of space groups and constant energy surface in 2D](https://invisiblenetwork.ai/learn/nptel/115108127/98d416d64d44) (Video)
20. [Lec 20 Energy band and effective mass](https://invisiblenetwork.ai/learn/nptel/115108127/a1dfd2adf1e2) (Video)
21. [Lec 21 Effective mass](https://invisiblenetwork.ai/learn/nptel/115108127/c87f8a74b158) (Video)
22. [Lec 22 k ⃗⋅p ⃗perturbation method](https://invisiblenetwork.ai/learn/nptel/115108127/220d7a7f0f4b) (Video)
23. [Lec 23 Revisiting Bloch's theorem and tight binding functions.](https://invisiblenetwork.ai/learn/nptel/115108127/7a65e2e8a762) (Video)
24. [Lec 24 Symmetries in crystal Hamiltonian - 1](https://invisiblenetwork.ai/learn/nptel/115108127/7e259ddca448) (Video)
25. [Lec 25 Symmetries in crystal Hamilonian - 2](https://invisiblenetwork.ai/learn/nptel/115108127/e035a904c8f3) (Video)
26. [Lec 26 Tight binding method - 1](https://invisiblenetwork.ai/learn/nptel/115108127/c63bd309e236) (Video)
27. [Lec 27 Tight binding method - 2](https://invisiblenetwork.ai/learn/nptel/115108127/dc06238d631f) (Video)
28. [Lec 28 Tight binding method - 3](https://invisiblenetwork.ai/learn/nptel/115108127/cf59494dace5) (Video)
29. [Lec 29 Plane wave method](https://invisiblenetwork.ai/learn/nptel/115108127/f93496943d78) (Video)
30. [Lec 30 Pseudo potential method](https://invisiblenetwork.ai/learn/nptel/115108127/26459f92053a) (Video)
31. [Lec 31 Cellular method of energy band calculation](https://invisiblenetwork.ai/learn/nptel/115108127/aed259de7f36) (Video)
32. [Lec 32 Muffin tin potential and APW functions](https://invisiblenetwork.ai/learn/nptel/115108127/659b35bc367a) (Video)
33. [Lec 33 Augmented plane wave method of energy band calculation-1](https://invisiblenetwork.ai/learn/nptel/115108127/510304749d2d) (Video)
34. [Lec 34 Augmented plane wave method of energy band calculation-2](https://invisiblenetwork.ai/learn/nptel/115108127/4030433ac0bb) (Video)
35. [Lec 35 Green's function method of energy band calculation - 1](https://invisiblenetwork.ai/learn/nptel/115108127/70defafff018) (Video)
36. [Lec 36 Green's function method of energy band calculation - 2](https://invisiblenetwork.ai/learn/nptel/115108127/c4c468294e8b) (Video)
37. [Lec 37 Cyclotron resonance technique](https://invisiblenetwork.ai/learn/nptel/115108127/87bf30811620) (Video)
38. [Lec 38 De Haas-van Alphen effect](https://invisiblenetwork.ai/learn/nptel/115108127/8231b3370647) (Video)
39. [Lec 39 De Haas-van Alphen effect conclusion.Introduction to point impurity effect on band structure.](https://invisiblenetwork.ai/learn/nptel/115108127/6afd01988cce) (Video)
40. [Lec 40 Point impurity in crystal](https://invisiblenetwork.ai/learn/nptel/115108127/d173c9141d77) (Video)
41. [Lec 41 Friedel Oscillations](https://invisiblenetwork.ai/learn/nptel/115108127/148972fedef9) (Video)
42. [Lec 42 Lindhard dielectric constant](https://invisiblenetwork.ai/learn/nptel/115108127/867d906ccee7) (Video)
43. [Lec 43 Dielectric anomaly. Crystal momentum](https://invisiblenetwork.ai/learn/nptel/115108127/a13486c68c4e) (Video)
44. [Lec 44 Spatial and time reversal symmetries in crystals](https://invisiblenetwork.ai/learn/nptel/115108127/9bbf8d90e920) (Video)
45. [Lec 45 Time reversal symmetry (Contd.)](https://invisiblenetwork.ai/learn/nptel/115108127/de5166527d2d) (Video)
46. [Lec 46 Spin orbit interaction](https://invisiblenetwork.ai/learn/nptel/115108127/b263fa32b1be) (Video)
47. [Lec 47 Disordered solids and transport in disordered solids](https://invisiblenetwork.ai/learn/nptel/115108127/68f4417b790a) (Video)
48. [Lec 48 Optical properties of semiconductors](https://invisiblenetwork.ai/learn/nptel/115108127/0fbb5ac1176e) (Video)
49. [Lec 49 Excitonic states in semiconductors](https://invisiblenetwork.ai/learn/nptel/115108127/687743c5a503) (Video)
50. [Lec 50 Excitonic states in semiconductors (Contd.)](https://invisiblenetwork.ai/learn/nptel/115108127/10870e832dfc) (Video)
51. [Lec 51 Molecular orbital calculation-I](https://invisiblenetwork.ai/learn/nptel/115108127/fc4a905e64b5) (Video)
52. [Lec 52 Mott-Hubbard transition](https://invisiblenetwork.ai/learn/nptel/115108127/877cf6364a41) (Video)
53. [Lec 53 Hubbard model](https://invisiblenetwork.ai/learn/nptel/115108127/8b428f077fa7) (Video)
54. [Lec 54 Electron repulsion and magnetic exchange](https://invisiblenetwork.ai/learn/nptel/115108127/2a8c470dfcac) (Video)
55. [Lec 55 Beyond on-site electron repulsions;Pariser-Parr-Pople model](https://invisiblenetwork.ai/learn/nptel/115108127/303d3a22265c) (Video)
56. [Lec 56 Electron-hole symmetry and Pairing theorem.Solitons](https://invisiblenetwork.ai/learn/nptel/115108127/54fb04764fd7) (Video)
57. [Lec 57 Density waves in 1-d systems.and Lattice vibrations - I](https://invisiblenetwork.ai/learn/nptel/115108127/470bcaf51023) (Video)
58. [Lec 58 Lattice vibrations - II](https://invisiblenetwork.ai/learn/nptel/115108127/445b2b760295) (Video)
59. [Lec 59 Lattice vibrations - III](https://invisiblenetwork.ai/learn/nptel/115108127/726ba127a6d8) (Video)
60. [Lec 60 Lattice vibrations - IV](https://invisiblenetwork.ai/learn/nptel/115108127/ff3cbca4882d) (Video)
61. [Live Session 17-09-2021](https://invisiblenetwork.ai/learn/nptel/115108127/099332a9cd49-2) (Video)