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Theoretical study of electron correl...

Ogura, Daisuke.

Theoretical study of electron correlation driven superconductivity in systems with coexisting wide and narrow bands

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Theoretical study of electron correlation driven superconductivity in systems with coexisting wide and narrow bandsby Daisuke Ogura.
作者:	Ogura, Daisuke.
出版者:	Singapore :Springer Singapore :2019.
面頁冊數:	xxi, 122 p. :ill. (some col.), digital ;24 cm.
Contained By:	Springer eBooks
標題:	High temperature superconductivity.
電子資源:	https://doi.org/10.1007/978-981-15-0667-3
ISBN:	9789811506673$q(electronic bk.)

Theoretical study of electron correlation driven superconductivity in systems with coexisting wide and narrow bands
Ogura, Daisuke.

Theoretical study of electron correlation driven superconductivity in systems with coexisting wide and narrow bands[electronic resource] /by Daisuke Ogura. - Singapore :Springer Singapore :2019. - xxi, 122 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

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.

ISBN: 9789811506673$q(electronic bk.)

Standard No.: 10.1007/978-981-15-0667-3doiSubjects--Topical Terms:

250374
High temperature superconductivity.

LC Class. No.: QC611.98.H54 / O387 2019

Dewey Class. No.: 537.623

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520 $a 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.
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