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Microscopic aspects of magnetic ordering, exchange interactions, types and symmetries of magnetic structures.
Introduction to experimental processes in study of magnetic structures.
Utilization of programs for symmetry analysis, and especially magnetic symmetry analysis, to solve magnetic
structures in materials. Introduction to newly developed programs and databases for analysis, standardization and
cataloguing of magnetic structures for requirements of modern physics. Practical application of processes and
programs on real measured data to solve magnetic structure of compound.
Last update: T_KFES (20.03.2017)
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Course completion requirements
Requirements for course credit:
The course credit is mandatory for course exam. Requirements to the exam Requirements for passing the exam:
Failure to pass the oral part of the exam means that both parts, practical and oral, must be repeated. The grade from the exam is determined on the basis of the point evaluation of the practical and oral part.
Last update: Mikšová Kateřina, Mgr. (12.05.2022)
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N.W. Ashcroft, N. D. Mermin: Solid State Physics, Saunders College, Philadelphia 1976 S. Blundell: Magnetism in Condensed Matter, Oxford University Press 2001 K.H.J. Bushow, F.R. de Boer: Physics of Magnetism and Magnetic Materials, Kluwer Academic 2003 Last update: Mikšová Kateřina, Mgr. (15.03.2017)
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Podmínky pro složení zkoušky:
Praktická část předchází ústní části, její nesplnění znamená, že celá zkouška je hodnocena známkou nevyhověl/a a ústní částí se již nepokračuje. Nesložení ústní části znamená, že při opravném termínu zkoušky je třeba opakovat obě části, praktickou i ústní. Známka ze zkoušky se stanoví na základě bodového hodnocení praktické a ústní části. Last update: Javorský Pavel, prof. Mgr., Dr. (13.06.2019)
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1. Microscopic aspects of magnetic ordering. Spin and orbital magnetic moment, direct and indirect exchange interactions, RKKY interaction. 2. Short- and long-range magnetic ordering, ferromagnetic and antiferromagnetic order, incommensurate magnetic structures. Propagation vector. 3. Types and symmetries of magnetic structures, group theory and symmetry of magnetic structures. 4. Experimental study of magnetic structures. Introduction to macro- and mainly microscopic methods. 5. Practical usage of programs for crystal and magnetic structure analysis - Bilbao Crystallographic Server. 6. Programs for analysis of irreducible representations - BASIREP and SARAh programs. 7. Tools to study distorted crystal structures in terms of symmetry modes of the irreducible representations of the parent space-group symmetry - programs ISOCIF and ISODISTORT. 8. Maximal magnetic subgroups of paramagnetic space groups - programs MAXMAGN, MAGNEXT and MVISUALIZE. 9. Practical usage of outputs of above listed methods and programs to solve magnetic structures employing program package FULLPROF. 10. Introduction to program JANA2006. 11. Solving magnetic structure of compound from neutron diffraction data - the case of powder and single crystal data. Last update: T_KFES (15.03.2017)
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