Statické a dynamické magnetooptické vlastnosti tenkých vrstev ferimagnetických granátů pro magnetooptické zobrazování
| Thesis title in Czech: | Statické a dynamické magnetooptické vlastnosti tenkých vrstev ferimagnetických granátů pro magnetooptické zobrazování |
|---|---|
| Thesis title in English: | Static and dynamic magneto-optical properties of thin layers of ferrimagnetic garnets for imaging applications |
| Academic year of topic announcement: | 2021/2022 |
| Thesis type: | dissertation |
| Thesis language: | čeština |
| Department: | Institute of Physics of Charles University (32-FUUK) |
| Supervisor: | RNDr. Martin Veis, Ph.D. |
| Author: | hidden - assigned and confirmed by the Study Dept. |
| Date of registration: | 01.09.2021 |
| Date of assignment: | 01.09.2021 |
| Confirmed by Study dept. on: | 30.09.2021 |
| Advisors: | RNDr. Jakub Zázvorka, Ph.D. |
| Guidelines |
| Ferrimagnetic garnets with large magneto-optical (MO) response and in-plane magnetic anisotropy can be utilized for applications in MO imaging as indicators. In these applications, the stray field generated by investigated magnetic sample magnetizes areas of MO indicator, which results in different MO response across the indicator. Spatially resolved MO measurements can therefore create highly contrasted image of the spatial distribution of stray magnetic field. Nowadays, the research is heading to the imaging of ac magnetic field of high frequency. Therefore, the important property of MO indicator is its magnetic dynamics.
The study will be focused to design, preparation and characterization of various ferrimagnetic garnets with in-plane magnetic anisotropies (e.g., Eu3Fe5O12, etc.). Based on the particular stoichiometry, thickness of the layer and preparation conditions, one can tune magneto-crystalline anisotropy as well as MO response of prepared thin films. The prepared films will be characterized by combination of optical and magneto-optical methods with both spectral and time resolution. The goal is to obtain desired magnetic anisotropy together with low Gilbert damping for applications in MO imagining. |
| References |
| [1] R. M. A. Azzam, N. M. Bashara, Ellipsometry and Polarized Light, North-Holland, Amsterdam / New York / Oxford 1977.
[2] Š. Višňovský, Optics in Magnetic Multilayers and Nanostructures, CRC Taylor & Francis, Boca Raton 2006. [3] E. Palik, Handbook of Optical Constants of Solids, Academic Press, New York 1998. [4] B. Di Bartolo, Optical Interactions in Solids, John Wiley & Sons, New York 1968. Vybraný soubor původních prací týkajících se tématu. K dispozici u vedoucího práce. |