Individual Experimental Project 390-ERS-2IPD
Quantitative indicators: requiring direct participation of academic teachers 1.8 ECTS, practical 3.2 ECTS
Rutheford's experiment, the Bohr model of the atom.
Basics of the phenomenon of paramagnetic resonance (EPR) and ferromagnetic resonance (FMR)
Normal and anomalous Zeeman effect.
Faraday phenomenon.
Measuring the speed of light with a PC.
|
Term 2023:
The aim of the classes is to learn the basics of the phenomenon of ferromagnetic resonance of thin magnetic layers. At the beginning, students learn the basics of a paramagnetic resonance spectrometer with a microwave resonator for the X-band (microwave frequency approx. 9.5 GHz). They will learn the basics of selective detection in order to denoise weak magnetic resonance signals. The existing spectrometer at the Faculty of Physics, thanks to the use of interfaces, allows for simple recording of the FMR spectrum with the possibility of basic analysis of spectrum parameters. Students learn how to operate the system and then perform a series of measurements of selected magnetic layers of cobalt as a function of the angle of the constant magnetic field relative to the axis normal to the sample surface. The measurements made allow obtaining graphs of the resonance field Hr and the width of the FMR line (this value is related to the magnetic attenuation of the sample). In the next stage, students become familiar with the theoretical basis for describing the energy of a thin magnetic layer in order to calculate the magnitude of magnetic anisotropy and the magnetic attenuation constant based on the measured dependences of the Hr field and the FMR line width on the magnetic field angle. The classes end with a report containing the measurement results in the form of graphs, calculation of magnetic anisotropy, magnetic attenuation and analysis of the results along with the analysis of measurement uncertainties. |
Term 2024:
The aim of the classes is to learn the basics of the phenomenon of ferromagnetic resonance of thin magnetic layers. At the beginning, students learn the basics of a paramagnetic resonance spectrometer with a microwave resonator for the X-band (microwave frequency approx. 9.5 GHz). They will learn the basics of selective detection in order to denoise weak magnetic resonance signals. The existing spectrometer at the Faculty of Physics, thanks to the use of interfaces, allows for simple recording of the FMR spectrum with the possibility of basic analysis of spectrum parameters. Students learn how to operate the system and then perform a series of measurements of selected magnetic layers of cobalt as a function of the angle of the constant magnetic field relative to the axis normal to the sample surface. The measurements made allow obtaining graphs of the resonance field Hr and the width of the FMR line (this value is related to the magnetic attenuation of the sample). In the next stage, students become familiar with the theoretical basis for describing the energy of a thin magnetic layer in order to calculate the magnitude of magnetic anisotropy and the magnetic attenuation constant based on the measured dependences of the Hr field and the FMR line width on the magnetic field angle. The classes end with a report containing the measurement results in the form of graphs, calculation of magnetic anisotropy, magnetic attenuation and analysis of the results along with the analysis of measurement uncertainties. |
Type of course
Prerequisites (description)
Course coordinators
Mode
Learning outcomes
K_W05 knows the limits of applicability of selected physical theories, models of physical objects and description of physical phenomena
K_W10 knows and understands the basic concepts and selected phenomena regarding electricity and magnetism - understands the content of Maxwell's equations
K_W11 knows the methods of experimental verification of physical laws and concepts, knows the structure and principles of operation of measuring apparatus for selected experiments in the field of electricity and magnetism
K_W13 knows the structure and principles of operation of measuring equipment for selected experiments in the field of thermodynamics
K_U09 can plan and perform simple experiments in the field of electricity and magnetism, critically analyze their results and present them
Assessment criteria
Performing the experiment, data processing, analysis of measurement uncertainties, discussion of the results, preparation of a report
Bibliography
1. A. Oleś, Experimental methods of solid state physics, WNT Warsaw 1998.
2. The instruction next to the experimental setup.
|
Term 2023:
1. A. Oleś, Metody doświadczalne fizyki ciała stałego, WNT Warszawa 1998. |
Term 2024:
1. A. Oleś, Metody doświadczalne fizyki ciała stałego, WNT Warszawa 1998. |
Additional information
Additional information (registration calendar, class conductors, localization and schedules of classes), might be available in the USOSweb system: