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Optical and magneto-optical properties of topological and Dirac materials
Tikuišis, Kristupas Kazimieras ; Veis, Martin (advisor) ; Slobodeniuk, Artur (referee) ; Erlingsson, Sigurdur Ingi (referee)
Kristupas Kazimieras Tikuišis, Department of Optoelectronics and Magneto- optics, Institute of Physics of Charles University Doctoral thesis: Optical and magneto-optical properties of topological and Dirac materials Supervisor: RNDr. Martin Veis, Ph.D., Department of Optoelectronics and Magneto-optics Advisers: RNDr. Roman Antoš, Ph.D., Department of Optoelectronics and Magneto-optics; Milan Orlita, Ph.D., National Laboratory of High Magnetic Fields LNCMI - Grenoble, CNRS (France) Abstract: Dirac materials exhibit unusual properties that attract interest both for practi- cal applications and fundamental reseach of exotic and relativistic physics. This thesis aims to systematically study basic optical and magneto-optical proper- ties of several members of these materials, namely the lead tin salts crystalline topological insulators and graphene. Non-destructive experimental techniques of spectroscoipic ellipsometry and FTIR magneto-optical spectroscopy were used to perform measurements from IR to UV spectral regions. A four-band Hamilto- nian model was derived to describe the most important band structure features of PbSnSe system placed in a magnetic field. This allowed to extract the band structure and topological parameters of the investigated samples. Extensive mod- eling results based on...
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