# SI2635 Introductory Condensed Matter Theory 7.5 credits

### Offering and execution

Course offering missing for current semester as well as for previous and coming semesters

## Course information

### Content and learning outcomes

#### Course contents *

Condensed matter theory: Crystal structure. Wave diffraction. Bragg law. Laue equations. Crystal binding. Elasticity. Reciprocal lattice. Brillouin zone. Crystal vibration. Quantization of elastic waves. Thermal properties. Debye model. Free electron gas. Energy bands. Bloch theorem. Kronig-Penney model. Fermi surfaces and metals. Calculation of energy bands. Magnetism. Noncrytalline solids. Nanostructures.

#### Intended learning outcomes *

After completed course you will be able:

• Use and apply the concept of direct and reciprocal lattice
• Calculate various properties of wave diffraction
• Characterize solids by the nature of binding
• Calculate properties of thermally excited lattice, phonons, apply Debye model
• Understand and apply the concept of free electron Fermi gas
• Solve wave equation for simple periodic potentials
• Estimate energy gaps for simple models
• Estimate diamagnetic and paramagnetic susceptibilities
• Explain the structure of noncrystalline solids
• Understand the physics of first order transitions

#### Course Disposition

No information inserted

### Literature and preparations

#### Specific prerequisites *

Statistical physics.

Vektor analys.

Quantum mechanics

Mathematical physics methods.

#### Recommended prerequisites

No information inserted

#### Equipment

No information inserted

#### Literature

Kittel, Introduction to Solid State Physics, 8th edition.

Holgate, Understanding Solid State Physics

### Examination and completion

A, B, C, D, E, FX, F

#### Examination *

• TEN1 - Written Examination, 7.5 credits, Grading scale: A, B, C, D, E, FX, F

Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.

The examiner may apply another examination format when re-examining individual students.

Written examination.

#### Other requirements for final grade *

TEN1 – Theory questions and problem solving,

7,5 hp, grade scale: A, B, C, D, E, FX, F

#### Opportunity to complete the requirements via supplementary examination

No information inserted

#### Opportunity to raise an approved grade via renewed examination

No information inserted

#### Examiner

No information inserted

### Further information

#### Course web

Further information about the course can be found on the Course web at the link below. Information on the Course web will later be moved to this site.

Course web SI2635

#### Main field of study *

Engineering Physics

Second cycle