Principles of Magnetism 390-FS2-1PFM
Lecture and tutorial content:
1) The concept of magnetic doppler.
2) Magnetic dipole in an external magnetic field.
3) The concept of magnetization and magnetic susceptibility.
4) Quantization of angular momentum - the Stern-Gerlach experiment.
5) Spin-orbit coupling. Russell-Sunders coupling.
6) Hund's rules. The concept of a ground-state term.
7) Magnetic dipole interaction.
8) An atom in an external magnetic field - the phenomenon of paramagnetism, the phenomenon of diamagnetism.
9) Paramagnetism:
- semiclassical approach J=∞,
- paramagnetism for J=1/2,
- paramagnetism - arbitrary J.
10) An atom in a crystal field. Atomic orbitals. The Jahn-Teller effect. 11) Interactions responsible for the ordering of magnetic moments.
12) Ferromagnetic ordering. Molecular field theory.
13) Antiferromagnetic ordering. Molecular field theory for antiferromagnets.
14) Domain structures. The magnetization process – the hysteresis loop.
15) Magnetism of a free electron gas.
The seminar is correlated with the lecture content. In particular, it covers the following topics:
1) Problems related to the action of the Lorentz force on a charge in a magnetic field.
2) The equation of motion for the magnetic dipole moment in an external magnetic field.
3) Calculation exercises involving spin-orbit coupling in the Bohr model of the atom. Estimation of the energy associated with spin-orbit coupling.
4) Determining the symbol of a ground-state atomic term based on Hund's rules. 5) Estimation of the magnetic dipole interaction energy at the atomic level.
6) Hamiltonian of an atom in an external magnetic field – diamagnetic and paramagnetic terms.
7) Special functions: Langevin and Brilloun functions.
8) Derivation of the Curie-Weiss formula.
9) Estimation of the domain wall width.
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Term 2024:
The tutorial is correlated with the lecture content. Specifically, it covers the following topics: |
Type of course
Mode
Prerequisites
Prerequisites (description)
Course coordinators
Learning outcomes
KP7_WG1 understand in-depth mathematical concepts essential in physics and astronomy within the scope of the curriculum,
KP7_UW1 appropriately select mathematical models to solve and analyze physical problems,
KP7_UW3 quantitatively and qualitatively explain the course of complex phenomena based on the laws of physics,
KP7_KK1 continuously improve one's own competences, taking into account the rapid progress in the field of physics.
Assessment criteria
After completing the course, students are assessed for their calculation skills related to the topics covered in the tutorial (solving problems) and theoretical issues related to the content covered in the lecture. A passing grade of 50% is required for an oral exam. Students must answer three questions from a pre-assigned set.
To assess learning outcomes, we use the following grading scale based on the average percentage of the questions:
Very good 5 (100% - 91%)
Good plus - 4.5 (90% - 81%)
Good 4 - (80% - 71%)
Satisfactory plus - 3.5 (70% - 61%)
Satisfactory 3 - (60% - 51%)
Unsatisfactory 2 (50% - 0%)
Bibliography
Literatura zalecana:
C.Kittel, „Wstęp do Fizyki Ciała Sałego”, PWN, Warszawa 1999
Magnetyzm, skrypt profesora L.Dobrzyńskiego – dostępny w czytelni Wydziału Fizyki Uniwersytetu w Białymstoku
K.M.Purcel, „Elektryczność i Magnetyzm”, PWN, Warszawa, 1975
A.H.Piekara, „Elektryczność i Magnetyzm”, PWN, Warszawa, 1979
A.Oleś, „Metody doświadczalne fizyki cała stałego”, Wydawnictwo Naukowo Techniczne, Warszawa 1998
Literatura dodatkowa:
A.H.Morrish, „Fizyczne Podstawy Magnetyzmu”, Państwowe Wydawnictwo Naukowe, Warszawa, 1970
S.Blumdell, ”Magnetism in Condensed Matter”, Oxford University Press, 2001
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Term 2024:
C. Kittel, "Introduction to Solid Physics", PWN, Warsaw 1999 |
Additional information
Additional information (registration calendar, class conductors, localization and schedules of classes), might be available in the USOSweb system: