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Course Co-ordinated by
IIT Madras
NPTEL
>>
Courses
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Metallurgy and Material Science
>> Physics of Materials (Web) >>
1 - Introduction
Question in Lecture
Properties of materials and the classical free electron theory
1 - Introduction
2 - Properties of Materials
3 - Thermal Expansion
4 - Measuring Electrical Conductivity: DC and AC
5 - Free Electron Gas
6 - The Ideal Gas
7 - Drude Model: Electrical Conductivity
8 - Drude Model: Thermal Conductivity
9 - Drude Model: Successes and Limitations
10 - Drude Model: Source of Shortcomings
11 - Large Systems and Statistical Mechanics
12 - Maxwell Boltzmann Statistics
Quantum mechanical improvements to the free electron model
13 - Classical Particles and Quantum Particles
14 - History of Quantum Mechanics – 1
15 - History of Quantum Mechanics – 2
16 - Introduction to Drude Sommerfeld model
17 - Fermi-Dirac Statistics: Part 1
18 - Fermi-Dirac Statistics: Part 2
19 - Features of the Fermi Dirac Distribution Function
20 - Maxwell-Boltzmann Distribution Vs Fermi-Dirac Distribution
21 - Anisotropy and Periodic Potential in a Solid
22 - Confinement and Quantization: Part 1
23 - Confinement and Quantization: Part 2
24 - Density of States
25 - Fermi Energy, Fermi Surface, Fermi Temperature
26 - Electronic Contribution to Specific Heat at Constant Volume
Incorporating crystal structure into the model
27 - Reciprocal Space – 1: Introduction to Reciprocal Space
28 - Reciprocal Space – 2: Condition for Diffraction
29 - Reciprocal Space – 3: Ewald sphere, Simple Cubic, FCC and BCC in Reciprocal Space
30 - Wigner Seitz Cell and Introduction to Brillouin Zones
31 - Brillouin Zones, Diffraction, and Allowed Energy Levels
32 - E Vs k, Brillouin Zones and the Origin of Bands
33 - Calculating Allowed Energy Bands and Forbidden Band Gaps
34 - Bands; Free Electron Approximation, Tight Binding Approximation
Addressing specific material properties using the models developed
35 - Semiconductors
36 - Magnetic Properties
37 - Electron Compounds; Phonons, Optoelectronic Materials
38 - Superconductivity
39 - Bose-Einstein Statistics
40 - Physics of Nano Scale Materials; Course Summary
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Question:
kittel writes that energy gap is equal to the fourier component of the crystal potential. but many sources such as this year's upsc physics paper say it to be equal to 2*fourier transform of periodic potential.please clarify this point with derivation.
By:
shishir
Date:
2012-06-24
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