Original title: Studium struktury LaCuAl3 pomocí jaderné magnetické a kvadrupólové rezonance
Translated title: Study of LaCuAl3 structure by means of nuclear magnetic and quadrupole resonance
Authors: Sgallová, Ráchel ; Chlan, Vojtěch (advisor) ; Englich, Jiří (referee)
Document type: Bachelor's theses
Year: 2017
Language: cze
Abstract: [cze] [eng]
V rámci bakaláøské práce byla studována struktura LaCuAl3 na sérii prá¹- kových kovových vzorkù LaCuxAl4−x, x = 0,75; 0,9; 1 a 1,1 zejména s ohle- dem na lokální symetrii atomù La. Byla zmìøena spektra jaderné magnetické rezonance 63 Cu, 65 Cu, 27 Al a 139 La pøi pokojové teplotì v externím magne- tickém poli 9,4 T. Èást namìøených spekter byla srovnána se spektry simulo- vanými pro odhadnutí poètu neekvivalentních atomù ve struktuøe. Dále byl pozorován a diskutován vliv stechiometrie Al/Cu na spektra jaderné magne- tické rezonance. 1 In the presented bachelor thesis the structure of LaCuAl3 was studied on a series of metallic powder samples LaCuxAl4−x, x = 0,75; 0,9; 1 and 1,1 especially with respect to the local symetry of La atoms. 63 Cu, 65 Cu, 27 Al and 139 La nuclear magnetic resonance spectra were measured at room tempera- ture in external magnetic eld of 9,4 T. Some of the measured spectra were compared with simulated ones in order to access the number of nonequiva- lent atoms in the structure. Furthermore, the effect of Al/Cu stoichiometry on nuclear magnetic resonance spectra was observed and diccussed. 1
Keywords: LaCuAl3; nuclear magnetic resonance; nuclear quadrupole resonance; jaderná kvadrupólová rezonance; jaderná magnetická rezonance; LaCuAl3

Institution: Charles University Faculties (theses) (web)
Document availability information: Available in the Charles University Digital Repository.
Original record: http://hdl.handle.net/20.500.11956/86375

Permalink: http://www.nusl.cz/ntk/nusl-462565


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Universities and colleges > Public universities > Charles University > Charles University Faculties (theses)
Academic theses (ETDs) > Bachelor's theses