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  • 1
    UID:
    almahu_9949372042702882
    Umfang: XXIII, 147 p. 57 illus., 56 illus. in color. , online resource.
    Ausgabe: 1st ed. 2022.
    ISBN: 9783031118661
    Serie: Springer Theses, Recognizing Outstanding Ph.D. Research,
    Inhalt: This PhD thesis reports on investigations of several oxide-based materials using advanced infrared and Raman spectroscopy techniques and in combination with external stimuli such as high magnetic or electric field, sptial confinement in thin film heterostructures and the radiation with UV light. This leads to new results in the fields of superconductivity, electronic polarization states and nanoscale phenomena. Among these, the observation of anomalous polar moments is of great relevance for understanding the electric-field-induced metal-to-insulator transistion; and the demonstration that confocal Raman spectroscopy of backfolded acoustic photons in metal-oxide multilayers can be used as a powerful characterization tool for monitoring their interface properties and layer thickness is an important technical development for the engineering of such functional oxide heterostructures.
    Anmerkung: Introduction -- Scientific Background of Complex Oxides -- Experimental Techniques -- Magnetic Field Effect on the Infrared Response of Underdoped YBa2Cu3O6.-Observation of Backfolded Acoustic Phonons in Metal-Oxide Heterostructures.
    In: Springer Nature eBook
    Weitere Ausg.: Printed edition: ISBN 9783031118654
    Weitere Ausg.: Printed edition: ISBN 9783031118678
    Weitere Ausg.: Printed edition: ISBN 9783031118685
    Sprache: Englisch
    URL: Volltext  (URL des Erstveröffentlichers)
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    UID:
    edoccha_9960901280902883
    Umfang: 1 online resource (158 pages)
    ISBN: 9783031118661
    Serie: Springer Theses
    Anmerkung: Intro -- Supervisor's Foreword -- Abstract -- Publications Related to this Thesis -- Acknowledgments -- Contents -- Abbreviations -- 1 Introduction -- References -- 2 Scientific Background of Complex Oxides -- 2.1 High-Temperature Superconductor YBa2Cu3O6+x -- 2.1.1 Ground State Orders and Properties of YBa2Cu3O6+x -- 2.2 Transition Metal-Oxide Thin Films and Multilayers -- 2.3 Strontium Titanate (SrTiO3) -- 2.3.1 Physical Properties of Bulk and Thin Films of SrTiO3 -- 2.3.2 Electronic States of SrTiO3 -- 2.3.3 Comparison with BaTiO3 and KTaO3 -- 2.3.4 Confined Electron Gas at the Interface of SrTiO3 -- References -- 3 Experimental Techniques -- 3.1 Infrared Spectroscopy -- 3.1.1 Light-Matter Interaction -- 3.1.2 Electromagnetic Waves at Interfaces -- 3.1.3 Analysis of Optical Spectra -- 3.1.4 Normal Incidence Reflectivity Measurements -- 3.1.5 Optical Spectroscopy in Magnetic Fields -- 3.1.6 Ellipsometry -- 3.2 Raman Spectroscopy -- 3.2.1 Classical Raman Process -- 3.2.2 Theoretical Description of Raman Scattering -- 3.2.3 Raman Instrumentation -- 3.2.4 Perspectives of Advanced Raman Techniques -- 3.3 Limitations of the Raman and Infrared Techniques -- References -- 4 Magnetic Field Effect on the Infrared Response of an Underdoped YBa2Cu3O6.6 Single Crystal -- 4.1 Introduction -- 4.2 Experimental Procedures -- 4.3 Results -- 4.3.1 Temperature Dependence at Zero Magnetic Field -- 4.3.2 Magnetic Field Dependence -- 4.4 Discussion -- 4.5 Conclusion -- 4.6 Outlook -- References -- 5 Observation of Backfolded Acoustic Phonons in Metal-Oxide Heterostructures -- 5.1 Introduction -- 5.2 Experimental Procedures -- 5.3 Results -- 5.3.1 Polarization Dependence -- 5.3.2 Sample Dependence -- 5.3.3 Spatial Dependence -- 5.3.4 Temperature Dependence -- 5.4 Conclusion -- 5.5 Outlook -- References. , 6 Electric Field Effect on SrTiO3- and KTaO3-Based Heterostructures -- 6.1 Introduction -- 6.2 Experimental Procedure -- 6.3 Results -- 6.3.1 Infrared Ellipsometry -- 6.3.2 Oxygen Vacancy Clustering Scenario -- 6.3.3 Raman Spectroscopy -- 6.3.4 UV Light Illumination -- 6.4 Conclusion -- 6.5 Outlook -- 6.5.1 Domain-Behaviour Under Electric Fields -- 6.5.2 Towards Device Fabrication from Untreated SrTiO3 Crystals -- References -- 7 Summary and Conclusion -- Reference -- Appendix A -- Appendix B -- List of Publications -- Curriculum Vitae -- Bibliography.
    Weitere Ausg.: Print version: Lyzwa, Fryderyk Phononic and Electronic Excitations in Complex Oxides Studied with Advanced Infrared and Raman Spectroscopy Techniques Cham : Springer International Publishing AG,c2022 ISBN 9783031118654
    Sprache: Englisch
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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