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Course, academic year 2018/2019
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Magnetic Properties of Solids - NFPL122
Title in English: Magnetické vlastnosti pevných látek
Guaranteed by: Department of Condensed Matter Physics (32-KFKL)
Faculty: Faculty of Mathematics and Physics
Actual: from 2016
Semester: winter
E-Credits: 3
Hours per week, examination: winter s.:2/0 Ex [hours/week]
Capacity: unlimited
Min. number of students: unlimited
State of the course: taught
Language: Czech
Teaching methods: full-time
Guarantor: doc. RNDr. Martin Diviš, CSc.
RNDr. Jiří Prchal, Ph.D.
RNDr. Jan Prokleška, Ph.D.
Classification: Physics > Solid State Physics
Is interchangeable with: NOOE132
Annotation -
Last update: T_KFES (21.05.2001)
Recommended for diploma and PhD students working in the field of condensed matter but non-specialized in the field of magnetism. Atomic susceptibility. Diamagnetism and paramagnetism. Interaction of f- and d-electrons with crystal field. Magnetic anisotropy. Exchange interaction. Magnetic ordering. Model hamiltonians used for a description of magnetism. Relation between electronic structure and magnetic properties of materials. Experimental methods in magnetism. New magnetic materials.
Course completion requirements - Czech
Last update: doc. RNDr. Martin Diviš, CSc. (06.10.2017)

Podmínkou zakončení předmětu je ústní zkouška.

Požadavky absolvování ústní zkoušky odpovídají rozsahu sylabu prezentovaném

na přednášce.

Literature - Czech
Last update: prof. RNDr. Vladimír Sechovský, DrSc. (06.05.2005)

[1] Stephen Blundell, Magnetism in Condensed Matter, Oxford University Press, 2001

[2] B. Barbara, D. Gignoux, C. Vettier, Lectures on Modern Magnetism, Springer-Verlag 1988 (selected topics)

[3] N.W.Ashcroft, N.D.Mermin, Solid state physics, Sounders Coll. Publishing 1988 (Ch 31-33)

[4] David Jiles, Introduction to Magnetism and Magnetic Materials, Chapman&Hall 1994 (selected topics)

[5] M.Hurd, Varieties of magnetic order in solids, Contemp.Phys. 23 (1983) 469

Syllabus -
Last update: prof. RNDr. Vladimír Sechovský, DrSc. (06.05.2005)

1.Diamagnetism, paramagnetism

Diamagnetism of atoms and free electrons.

Magnetic moments of ions of transition metals (f- and d-electrons).

Free ions, intraatomic correlations, spin and orbital moment, total moment.

Ions in condensed matter, changes and moment instabilities, relation with electronic structure1

2. Interactions

Interactions of f- and d-electrons with crystal field.

Consequences for magnetic moments, magnetocrystalline anisotropy.

Exchange interactions - types of exchange interactions - origin of magnetic ordering.

Magnetization processes in ferromagnets.

3. Magnetic ordering

Types of magnetic ordering, magnetic structures, magnetic phase transitions, critical phenomena.

Relationship between magnetic state and other electronic properties.

4. Relationships between parameters of electronic structure and magnetic state of materials.

Bulk and surface magnetism.

5. Experimental methods for studies of magnetic materials

Bulk methods - direct and indirect.

Microscopic methods - interaction of electromagnetic waves and particles with matter.

Time and energy scales of phenomena versus time and energy scales of experiments.

6. New materials

Permanent magnets, thin layers, magnetic multilayers, granular systems, nanostructures, amorphous and nanocrystalline magnetics.

 
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