PřF:F6360 Mag. prop. of thin layers

F6360 Magnetic properties of thin layers

Faculty of Science
Spring 2005

Extent and Intensity

2/0/0. 2 credit(s). Type of Completion: k (colloquium).

Teacher(s)

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

Guaranteed by

Timetable

Mon 11:00–12:50 UFKL

Prerequisites

a good knowledge of solid state phzsics and quantum mechanics

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

An overwiew of magnetic properties of thin layers and their technological applications

Syllabus

1. Magnetic properties of individual atoms and exchange interaction a free atom in a magnetic field terms, the Hund rules magnetic monments of atoms in a solid interaction of magnetic moments example: H2 molecule the Heissenberg hamiltonian the Weiss theorz of molecular field the Curie-Weiss law 2. Magnetism of valence electrons the spin density functional the Stoner model antiferromagnetism and spin waves magnetic properties of alloys surface magnetic properties 3. Magnetic properties of thin layers magnetic anizotropy magnetization of thin layers magnetic phase transition magnetic domains in thin layers magnetic multilayers 4. Exchange interaction between magnetic layers Dependence on the properties of the spacer layers Dependence on the interface properties 5. Magnetoresistance Anisotropic magnetoresistance (AMR) Giant magnetoresistance (GMR) Colossal magnetoresistance (CMR) Eelements of the theoretical description of GMR Spinvalves 6. Growth of thin layers, MBE method In-situ analysis of the layers Growth kinetics Ecamples of the growth of magnetic layers 7. Experimental methods Magnetometry Atoms as measuring devices neutron scattering absorption and ascattering of x-rays

Assessment methods (in Czech)

přednáška je ukončena kolokviem

Language of instruction

Czech

Further Comments

The course can also be completed outside the examination period.
The course is taught annually.