Anomalous metallic state of UBe13 explored by Th substitution for U over the full range of concentrations
| Thesis title in Czech: | Studium anomalního kovového stanu UBe13 pomocí Th substitucí v celém rozsahu koncentrací |
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| Thesis title in English: | Anomalous metallic state of UBe13 explored by Th substitution for U over the full range of concentrations |
| Key words: | těžké fermiony, magnetismus, supravodivost |
| English key words: | heavy fermions, magnetism, superconductivity |
| Academic year of topic announcement: | 2015/2016 |
| Thesis type: | dissertation |
| Thesis language: | angličtina |
| Department: | Department of Condensed Matter Physics (32-KFKL) |
| Supervisor: | prof. RNDr. Vladimír Sechovský, DrSc. |
| Author: | Naoyuki Miura, M.Sc. - assigned and confirmed by the Study Dept. |
| Date of registration: | 06.10.2015 |
| Date of assignment: | 06.10.2015 |
| Confirmed by Study dept. on: | 05.11.2015 |
| Date and time of defence: | 30.09.2019 09:00 |
| Opponents: | doc. RNDr. Ladislav Havela, CSc. |
| Guidelines |
| Príce bude vypracována podle pokynů ve Studijním planu a každoročních Upřesněních. |
| References |
| Vybraná časopisecká literatura o fyzice těžkých fermionů |
| Preliminary scope of work |
| In order to elucidate the origin of anomalous metallic state observed in UBe13, the heavy fermion superconductor Th substituted compounds Th1-xUxBe13 should be thoroughly studied.
So far strange single-uranium-site effect in uranium-diluted system Th1-xUxBe13 for x ≤ 0.11) has been observed. The main objective of the PhD work is extension of the study on the entire range of uranium concentrations. The key part of the work is the growth, structure and composition characterization of high quality Th1-xUxBe13 single-crystals of selected stoichiometries by using the Al-flux method. The crystals should be then subjected to experiments focused on determinarion of intrinsic magnetic, thermodynamic, transport properties. As a result sound information on the origin of the heavy fermion state is espected and clues how to understand the physical properties in periodic system |
| Preliminary scope of work in English |
| In order to elucidate the origin of anomalous metallic state observed in UBe13, the heavy fermion superconductor Th substituted compounds Th1-xUxBe13 should be thoroughly studied.
So far strange single-uranium-site effect in uranium-diluted system Th1-xUxBe13 for x ≤ 0.11) has been observed. The main objective of the PhD work is extension of the study on the entire range of uranium concentrations. The key part of the work is the growth, structure and composition characterization of high quality Th1-xUxBe13 single-crystals of selected stoichiometries by using the Al-flux method. The crystals should be then subjected to experiments focused on determinarion of intrinsic magnetic, thermodynamic, transport properties. As a result sound information on the origin of the heavy fermion state is espected and clues how to understand the physical properties in periodic system |