PřF:FA800 Condensed matter physics III - Course Information

FA800 Condensed matter physics III

Extent and Intensity

3/1. 4 credit(s) (plus extra credits for completion). Type of Completion: zk (examination).

Teacher(s)

prof. RNDr. Václav Holý, CSc. (lecturer)

Guaranteed by

prof. RNDr. Josef Humlíček, CSc.
Department of Condensed Matter Physics – Physics Section – Faculty of Science
Contact Person: prof. Mgr. Dominik Munzar, Dr.

Course Enrolment Limitations

The course is also offered to the students of the fields other than those the course is directly associated with.

fields of study / plans the course is directly associated with

• Condensed Matter Physics (programme PřF, N-FY)

Course objectives

Information on magnetic and dielectric properties of solids, as well as on surface- and interface-related phenomena

Syllabus

• 1. Response of a physical system on an external stimulus 1.1. Basic theory of linear response Theory assumptions Function of linear response Kramers-Kronig transformation Nonlocal response 1.2. Elastic response on external force Strain and stress tensors Hooke‘s law Isotropic and anisotropic elastic constants Connection of elastic constants with microstructure –acoustic phonons, VFF model Plastic deformation, creep Experimental methods 1.3. Response on external electric field External electric field, polarization, permittivity 1.4. Response on external magnetic field Internal and external fields, magnetization, susceptibility Magnetic atomar moment Diamagnetic susceptibility The Hund’s rules, Wigner-Eckart theorem Paramagnetic susceptibility, the Curie’s law Freezing of orbital moments, 3d and 4f electrons Paramagnetism of free electrons 2. Spontaneous ordering in solids – mean-field theory 2.1. Spontaneous ordering of electric moments Ferroelectric materials Linear ferroelectric chain The Landau theory, phase transitions of 1st and 2nd order Piezoelectric solids 2.2. Spontaneous ordering of magnetic moments Types of arrangements of moments Pair of moments, overlap of wave functions Heisenberg and Ising hamiltonians The Weiss mean-field theory, magnetic susceptibility above Tc, Curie-Weiss law Magnetization below Tc The Weiss theory for antiferromagnets Heat capacity Magnons, the Bloch 3/2-law Multiferroic materials Itinerant magnetism, the Stoner model Magnetism in nanoparticles, superparamagnetism Magnetism in semiconductors Experimental methods 3. Physics at surfaces and interfaces 3.1. Two-dimensional crystallography Point symmetry of 2D lattices, the Bravais lattices in 2D, Superlattices – surface reconstruction, adsorbed atoms Reciprocal lattice Electron diffraction, grazing-incidence x-ray diffraction 3.2. Surface phonons Semiinfinite linear chain Localized states Semiinfinite crystal The Raleigh model Surface polaritons 3.3. Surface electron states Schroedinger equation for electron in a semiinfinite chain Surface states Semiinfinite crystals Photoelectron spectroscopy

Literature

• J. M. D. Coey, Magnetism and magnetic materials, Cambridge Univ. Press 2010
• IBACH, H. Physics of surfaces and interfaces. Berlin: Springer. xii, 646. ISBN 3540347097. 2006. info
• DESJONQUÉRES, Marie Catherine and D. SPANJAARD. Concepts in surface physics. Berlin: Springer Verlag. xv, 605. ISBN 3540586229. 1998. info
• LÜTH, Hans. Surfaces and interfaces of solid materials. 3rd ed. Berlin: Springer Verlag. xii, 556. ISBN 3540585761. 1998. info
• CHAIKIN, Paul M. and T. C. LUBENSKY. Principles of condensed matter physics. Cambridge: Cambridge University Press. xx, 699. ISBN 9780521794503. 1995. info
• ASHCROFT, Neil W. and N. David MERMIN. Solid state physics. South Melbourne: Brooks/Cole. xxi, 826 s. ISBN 0-03-083993-9. 1976. info

Teaching methods

lecture

Assessment methods

written test, oral exam

Language of instruction

Czech

Further Comments

The course is taught annually.
The course is taught: every week.

• Enrolment Statistics (Autumn 2011, recent)
  
• Permalink: https://is.muni.cz/course/sci/autumn2011/FA800