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Verfasst von:Ogura, Daisuke [VerfasserIn]   i
Titel:Theoretical Study of Electron Correlation Driven Superconductivity in Systems with Coexisting Wide and Narrow Bands
Verf.angabe:Daisuke Ogura
Verlagsort:Singapore
Verlag:Springer
E-Jahr:2019
Jahr:[2019]
Umfang:1 Online-Ressource (XXI, 122 Seiten)
Illustrationen:Illustrationen, Diagramme
Gesamttitel/Reihe:Springer Theses : Recognizing Outstanding Ph.D. Research
 Springer Theses, Recognizing Outstanding Ph.D. Research
 Springer eBooks : Physics and Astronomy
 Springer eBook Collection
Hochschulschrift:Dissertation, Osaka University
ISBN:9789811506673
Abstract:Introduction -- Background of the Present Thesis -- Method -- FLEX+DMFT Analysis for Superconductivity in Systems With Coexisting Wide and Narrow Bands -- Possible High-Tc Superconductivity in “hidden ladder” Materials -- Conclusion -- Appendices
 This book deals with the study of superconductivity in systems with coexisting wide and narrow bands. It has been previously suggested that superconductivity can be enhanced in systems with coexisting wide and narrow bands when the Fermi level is near the narrow band edge. In this book, the authors study two problems concerning this mechanism in order to: (a) provide a systematic understanding of the role of strong electron correlation effects, and (b) propose a realistic candidate material which meets the ideal criteria for high-Tc superconductivity. Regarding the role of strong correlation effects, the FLEX+DMFT method is adopted. Based on systematic calculations, the pairing mechanism is found to be indeed valid even when the strong correlation effect is considered within the formalism. In the second half of the book, the authors propose a feasible candidate material by introducing the concept of the “hidden ladder” electronic structure, arising from the combination of the bilayer lattice structure and the anisotropic orbitals of the electrons. As such, the book contributes a valuable theoretical guiding principle for seeking unknown high-Tc superconductors
DOI:doi:10.1007/978-981-15-0667-3
URL:Resolving-System: https://doi.org/10.1007/978-981-15-0667-3
 DOI: https://doi.org/10.1007/978-981-15-0667-3
Schlagwörter:(s)Hochtemperatursupraleitung   i / (s)Elektronenkorrelation   i / (s)Bandstruktur   i / (s)Cooper-Paar   i / (s)Dynamische Molekularfeldtheorie   i / (s)Spinfluktuation   i / (s)Niederdimensionales System   i / (s)Computersimulation   i
Datenträger:Online-Ressource
Dokumenttyp:Hochschulschrift
Sprache:eng
Bibliogr. Hinweis:Erscheint auch als : Druck-Ausgabe
K10plus-PPN:168172720X
 
 
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