SubjectsSubjects(version: 845)
Course, academic year 2018/2019
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Dislocations in Solids - NFPL049
Title in English: Dislokace v pevných látkách
Guaranteed by: Department of Physics of Materials (32-KFM)
Faculty: Faculty of Mathematics and Physics
Actual: from 2014 to 2018
Semester: both
E-Credits: 3
Hours per week, examination: 2/0 Ex [hours/week]
Capacity: unlimited
Min. number of students: unlimited
State of the course: taught
Language: Czech, English
Teaching methods: full-time
Note: you can enroll for the course in winter and in summer semester
Guarantor: prof. RNDr. Zuzanka Trojanová, DrSc.
Classification: Physics > Solid State Physics
Annotation -
Last update: T_KFK (17.04.2002)
Relationship between dislocations and phonons. Electrons and dislocations in ionic crystals, metals and semiconductors, magnetic properties and dislocations. Dislocations and disclinations.
Literature - Czech
Last update: T_KFK (13.03.2003)

1. F.R.N. Nabarro: Theory of Crystal Dislocations, Clarenton Press, Oxford 1967.

Syllabus -
Last update: T_KFK (22.05.2003)

1. Dislocations and phonons. Interaction between dislocations and phonons. Movement of dislocations influenced by phonons. 2. Dislocations and electrons. Influence of electrons on dislocation motion. Electron viscosity. Influence of the extrinsic electric and magnetic field on dislocation motion. Properties of dislocations in superplastic state. Influence of electric pulses on dislocation motion and its theoretical base. 3. Dislocations in ionec crystals Dislocation motion. Intersections of dislocations, jogs formation, electrical neutrality. Interaction of dislocations and colour centres. 4. Dislocations in semiconductors. Electrical properties of dislocations. Point defects originated during plastic deformation. Electron levels and dislocations. Dislocation in doped semiconductors and undopted materials. Multiplications of dislocations. 5. Magnetism and dislocations. Dislocations in ferromagnetic crystals. Dislocations and spin of electrons. Influence of magnetic field on dislocation motion. Influence of dislocation density on magnetic behaviour of materials. Magnetoelasticity and dislocations. 6. Dislocations and disclinations. Definitions and behaviour of disclinations. Energy of disclinations. Relationship between theory of disclinations and magnetoelasticity.

 
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