ECTS credits ECTS credits: 4.5
ECTS Hours Rules/Memories Student's work ECTS: 74.2 Hours of tutorials: 2.25 Expository Class: 18 Interactive Classroom: 18 Total: 112.45
Use languages Spanish, Galician
Type: Ordinary Degree Subject RD 1393/2007 - 822/2021
Departments: Applied Physics
Areas: Electromagnetism
Center Faculty of Physics
Call: Second Semester
Teaching: With teaching
Enrolment: Enrollable
The fundamental target of the subject should be to offer students an introduction to magnetism and its applications focusing on the emerging field of nanostructured materials. Starting from basic concepts of Electromagnetism and Quantum Mechanics, in the first part of the subject the basic magnetic phenomena will be discussed both from an experimental and theoretical point of view. Emphasis will be placed on a phenomenological approach, sometimes sacrificing more precise and complex developments. The second part of the course aims to offer a synthesis of the properties of nanomagnetic materials most used for their scientific and technological interest, highlighting their most interesting applications. At the end of the course, the student will understand nanomagnetism as an important part of current research in continuous evolution.
Introduction: Magnetic moments, Bohr-van Leeuwen's theorem, Magnetism and Quantum Mechanics.
Isolated magnetic moments: An atom in a magnetic field. Magnetic susceptibility, diamagnetism, paramagnetism. Hund rules.
Magnetic interactions: magnetic dipole interaction, exchange interaction.
Organization and magnetic structures: Ferromagnetism, antiferromagnetism, ferrimagnetism, helical arrangements, spin glasses.
Magnetic ordering and symmetry breaking: Symmetry break. Models (Landau, Heisenberg, Ising, xy). Consequences of the symmetry breaking: existence of phase transitions, rigidity, magnetic excitations: spin waves, defects. Phase transitions, midfield, critical exponents.
Traveling magnetism: Paramagnetism of Pauli. Spin density waves. Electronic structure and magnetism.
Domain structures: Magnetic anisotropy energy. Domain walls. Formation of domains. Magnetization processes.
Magnetic nanoparticles: Dependence of the domain structure with the size of the particles: monodominium particles. Model of Stoner-Wolfarth. Superparamagnetism. Technological applications Metallic nanoparticles. Optical properties Nanoantenas
Magnetic films and layers. Magnetism of surfaces. Magnetic coupling between layers. Technological aBpplications
Magnetoresistance and its technological applications: Normal magnetoresistance. Giant magnetoresistance Colossal magnetoresistance Magnet resistance through tunel effect. Applications: spin valves, magnetic memories and sensors. Hall effect. Spintronics
Basic bibliography:
"Magnetism in condesed matter", Stephen Blundell, Oxford Master Series in Condensed Matter Physics, 2001.
Complementary bibliography:
"Spin electronics", M. Ziese, M. J. Thornton, Springer 2001.
"Magnetism. from fundamentals to nanoscale dynamics", J Stohr, H. C. Siegmann, Springer 2006.
"Fundamentals of magnetism", M. Getzlaff, Springer 2008.
"Principes of nanomagnetism", A. P. Guimaraes, Springer 2009.
"Quantum theory of magnetism", W. Nolting, Springer 2009.
"Magnetism and magnetic materials", J. D. M. Coey, Cambridge, 2010.
"Introduction to nanoscience", S. M. Lindsay, Oxford, 2010.
"Fundamentals of nanotechnology", G. L. Horniak et al. CRC Press, 2009.
"Nanoscience and technology: A collection reviews from Nature journals. Editado por P. Rogers. Nature publishing group. 2010.
"Introduction to spintronics", S. Bandyopadhyay, CRC Press, 2008.
The competences that students are expected to acquire in this subject are specific knowledge of magnetism as well as the introductory foundations of other core disciplines such as Statistical Physics, Quantum Mechanics, Solid State and Electronics.
The activities from which the teaching of the subject will be developed will be of several types: theoretical classes, seminars and problems. Student participation will be essential in seminars and problems classes. Likewise, hours of tutorials will be available to the student for individualized discussions of any doubts that may arise about the contents of the subjects.
OBSERVATIONS due to the new situation of the Covid-19.
If we could not have face-to-face classes then Teams or other means will be used to try to replace them as best we can. In this case we will always go next to Blundell's first reference and also to his exercises.
1. PRESENTIAL. This is the fundamental and that is expected to have to achieve well the proposed objectives.
2. HALF-PRESENTIAL. In this case, it will be presented in the Virtual Secretariat and in the material of the teams that can replace deficiencies as much as possible.
3. NOT PRESENTIAL. Without a doubt this case is the worst and will have to be replaced by doing many more personal exercises for the students and following the difficulties of knowledge.
Class attendance will be compulsory and the evaluation will be continuous and will be carried out through the delivery of exercise bulletins, carrying out controls and / or carrying out a monographic work on a topic of the recent bibliography of interest for the course. There will also be a final exam, on the date scheduled by the dean for those students who do not pass the continuous evaluation or want to upload a grade.
OBSERVATIONS due to the new situation of the Covid-19.
The evaluation in any case will be continuous and the students will have to do exercises of each subject that finally will give the final qualification.
This is a subject of 4.5 ECTS credits. It corresponds to 42 hours of face-to-face classes, 28 of them of theory and 14 of seminars and problems, 3 of tutorials and 67.5 hours of personal work.
This is a complex subject in which the student will be presented with many concepts that he will later develop in other core subjects. It is recommended to bring the subject up to date, trying to reproduce the class calculations, consult the recommended bibliography to clarify those points that represent for the student some difficulty and above all use the tutorials to resolve any doubts that may arise.
At the time of approving this teaching program, thinking of a possible scenario 2 or 3 due to the Covid-19, the process of requesting and acquiring new electronic bibliographic material is underway; therefore, the bibliographic material available for this subject will be informed at the time on the Virtual Campus
Daniel Baldomir Fernandez
Coordinador/a- Department
- Applied Physics
- Area
- Electromagnetism
- Phone
- 881813969
- daniel.baldomir [at] usc.es
- Category
- Professor: University Professor
| Wednesday | |||
|---|---|---|---|
| 18:00-19:30 | Grupo /CLE_01 | Spanish | 3rd Virtual Classroom |
| Thursday | |||
| 18:00-19:30 | Grupo /CLE_01 | Spanish | 3rd Virtual Classroom |
| Friday | |||
| 09:00-10:30 | Grupo /CLE_01 | Spanish | 3rd Virtual Classroom |
| 05.24.2021 16:00-20:00 | Grupo /CLE_01 | 3 (Computer Science) |
| 05.24.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 0 |
| 05.24.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 130 |
| 05.24.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 140 |
| 05.24.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 6 |
| 05.24.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 830 |
| 05.24.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 840 |
| 05.24.2021 16:00-20:00 | Grupo /CLE_01 | Main Hall |
| 06.25.2021 16:00-20:00 | Grupo /CLE_01 | 3 (Computer Science) |
| 06.25.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 0 |
| 06.25.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 130 |
| 06.25.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 140 |
| 06.25.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 6 |
| 06.25.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 830 |
| 06.25.2021 16:00-20:00 | Grupo /CLE_01 | Classroom 840 |
| 06.25.2021 16:00-20:00 | Grupo /CLE_01 | Main Hall |