Reinhoffer, Chris (2024). Terahertz-Induced Dynamics in Strongly Correlated and Magnetic Materials. PhD thesis, Universität zu Köln.

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Abstract

This thesis explores the use of high-intensity terahertz (THz) pulses to uncover new physical phenomena in various materials. It investigates the nonlinear conductivity of the transition metal oxide (Sr,Ca)RuO3, revealing strong third harmonic generation linked to electron transport and heavy quasiparticles. In the superconductor MgB2, THz pulses probe the elusive Higgs mode using harmonic generation in magnetic fields. The ferrimagnetic garnet (Gd,Bi)3Fe5O12 displays tunable magnetization dynamics influenced by cavity effects and Zeeman torque. These findings enhance our understanding of THz spectroscopy and its applications in material science.

Item Type: Thesis (PhD thesis)
Creators:
Creators
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ORCID
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Reinhoffer, Chris
UNSPECIFIED
UNSPECIFIED
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URN: urn:nbn:de:hbz:38-737355
Date: 2024
Language: English
Faculty: Faculty of Mathematics and Natural Sciences
Divisions: Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics II
Subjects: Natural sciences and mathematics
Physics
Uncontrolled Keywords:
Keywords
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Physics
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Terahertz
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Condensed matter
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Strong correlation
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Superconductor
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Date of oral exam: 13 September 2024
Referee:
Name
Academic Title
van Loosdrecht, Paul H. M.
Prof. Dr. Ir.
Johnson, Steven
Prof. Dr.
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/73735

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