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Master's Thesis
Author of thesis: Ing. Michal Kern
Acad. year: 2014/2015
Supervisor: doc. Dr. Ing. Petr Neugebauer, Ph.D.
Reviewer: Mgr. Aliaksei Vetushka, Ph.D.
This thesis has been devoted to the improvement of a Torque Detected Electron Spin Resonance (TDESR) spectrometer by replacing the current capacitive detection of cantilever bending with optical methods. The thesis covers the basics of Electron Spin Resonance (ESR) spectrometry with the focus on TDESR and the field of single molecule magnetism. Laser beam deflection and interferometric detection methods are explained. The design of the TDESR spectrometer and its performance is shown on successfully obtained high quality TDESR spectra of an Fe4 single molecule magnet single crystal. Obtained results prove the feasibility of implemented detection method and its superiority with respect to the previously used capacitive method in terms of quality, resolution and speed. To further improve the TDESR setup, we have designed and assembled a system which uses an interferometer for detection of cantilever bending.
torque detected electron spin resonance, spectroscopy, single molecule magnet, laser beam deflection, interferometer
Date of defence
22.06.2015
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Language of thesis
English
Faculty
Fakulta strojního inženýrství
Department
Institute of Physical Engineering
Study programme
Applied Sciences in Engineering (N3901-2)
Field of study
Physical Engineering and Nanotechnology (M-FIN)
Composition of Committee
prof. RNDr. Tomáš Šikola, CSc. (předseda) prof. RNDr. Miroslav Liška, DrSc. (místopředseda) prof. RNDr. Bohumila Lencová, CSc. (člen) prof. RNDr. Jiří Komrska, CSc. (člen) prof. RNDr. Petr Dub, CSc. (člen) prof. RNDr. Radim Chmelík, Ph.D. (člen) prof. RNDr. Jiří Spousta, Ph.D. (člen) prof. Ing. Ivan Křupka, Ph.D. (člen) prof. RNDr. Pavel Zemánek, Ph.D. (člen) RNDr. Antonín Fejfar, CSc. (člen)
Supervisor’s reportdoc. Dr. Ing. Petr Neugebauer, Ph.D.
Grade proposed by supervisor: A
Reviewer’s reportMgr. Aliaksei Vetushka, Ph.D.
Grade proposed by reviewer: B
Responsibility: Mgr. et Mgr. Hana Odstrčilová