FA800 Condensed matter physics III

Faculty of Science
Autumn 2018
Extent and Intensity
2/1/0. 2 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.
Supplier department: Department of Condensed Matter Physics – Physics Section – Faculty of Science
Timetable
Mon 17. 9. to Fri 14. 12. Mon 10:00–11:50 Kontaktujte učitele
  • Timetable of Seminar Groups:
FA800/01: Mon 17. 9. to Fri 14. 12. Mon 12:00–12:50 Kontaktujte učitele
Prerequisites
good knowledge of solid-state physics (the basic course)
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
Course objectives
Knowledge of electric and magnetic properties of solids
Learning outcomes
electric and magnetic properties of solids
Syllabus
  • 1. Response of a physical system to an external input
  • 1.1. Basic of the theory of linear response
  • Assumptions and simplifications Linear-response function Kramers-Kronig transformation Nonlocal theory
  • 1.2. Elastic response to an external force
  • Stress and strain tensors Hooke's law Elastic constants of isotropic and anisotropic solids, symmetry considerations Connection with atomic structure, VFF model Plastic deformation, creep Experimental methods
  • 1.3. Response to an external electric field
  • Polarization of a dielectric, susceptibility, permittivity Various response functions (electron gas, orientation polarization, atomic polarization), optical properties
  • 1.4. Response to an external magneticfield
  • External and internal magnetic field, magnetization, magnetic susceptibility Magnetic moments of atoms, the Hund rules Diamagnetism Wigner-Eckart theorem Paramagnetic susceptibility, the Curie law Freezing of orbital moment of 3d a 4f electrons Paramagnetism of free electrons
  • 2. Spontaneous ordering of solids - mean-field theory
  • 2.1. Spontaneous ordering of electric moments
  • examples of ferroelectric materils Linear chain Landau theory, 1st and 2nd order transitions Piezoelectricity.
  • 2.2. Spontaneous ordering of magnetic moments
  • Types of moment ordering Pair of moments, singlet and triplet states. Heisenberg and Ising hamiltonians Weiss theory of mean field Magnetic susceptibility above Tc - the Curie-Weiss law Magnetization below Tc, critical exponents The Weiss theory for antiferromagnetic materials Magnetic heat capacity Magnons, the Bloch 3/2-law Multiferroics Itinerant ferromagnetism - the Stoner model Magnetism of nanoparticles, superparamagnetism Magnetism of semiconductor - diluted magnetic semicondutors, magnetic inclusions in semiconductors Exp. methods: magnetometry, NMR, Mössbauer spectroscopy, neutron scattering, XMCD
  • 3. Basics of theorodynamics of solids
  • Helmholtz free energy of a binary system. Interaction energy, mixing entropy. Equilibrium condition of a binary system. Phase diagram. Examples of phase diagrams: full solubility, eutectics, peritectics, intermetallic compounds and phases
Literature
  • Physics of magnetism and magnetic materials. Edited by K. H. J. Buschow - F. R. de Boer. New York: Kluwer Academic/Plenum Publishers, 2003, vii, 182 p. ISBN 0306474212. info
  • CHAIKIN, Paul M. and T. C. LUBENSKY. Principles of condensed matter physics. Cambridge: Cambridge University Press, 1995, xx, 699. ISBN 9780521794503. info
  • ASHCROFT, Neil W. and N. David MERMIN. Solid state physics. South Melbourne: Brooks/Cole, 1976, xxi, 826. ISBN 0030839939. info
Teaching methods
lectures, seminars
Assessment methods
oral exam
Language of instruction
Czech
Further Comments
The course is taught annually.
The course is also listed under the following terms Autumn 2011, Autumn 2011 - acreditation, spring 2012 - acreditation, Autumn 2012, Autumn 2013, Spring 2015, Spring 2016, Spring 2017, spring 2018, Autumn 2019, Autumn 2020, autumn 2021, Autumn 2022, Autumn 2023, Autumn 2024.
  • Enrolment Statistics (Autumn 2018, recent)
  • Permalink: https://is.muni.cz/course/sci/autumn2018/FA800