Theory of multipole fluctuation mediated superconductivity and multipole phase : important roles of many body effects and strong spin-orbit coupling /

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Bibliographic Details
Author / Creator:Tazai, Rina, author.
Imprint:Singapore : Springer, [2021]
Description:1 online resource (128 pages).
Language:English
Series:Springer theses
Springer theses.
Subject:
Format: E-Resource Book
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/12612974
Hidden Bibliographic Details
ISBN:9789811610264
9811610266
9789811610257
9811610258
Notes:"Doctoral thesis accepted by Nagoya University, Nagoya, Japan."
Includes bibliographical references.
Description based upon print version of record.
Summary:A strong spin-orbit interaction and Coulomb repulsion featuring strongly correlated d- and f-electron systems lead to various exotic phase transition including unconventional superconductivity and magnetic multipole order. However, their microscopic origins are long standing problem since they could not be explained based on conventional Migdal-Eliashberg theorem. The book focuses on many-body correlation effects beyond conventional theory for the d- and f-electron systems, and theoretically demonstrates the correlations to play significant roles in mode-coupling among multiple quantum fluctuations, which is called U-VC here. The following key findings are described in-depth: (i) spin triplet superconductivity caused by U-VC, (ii) being more important U-VC in f-electron systems due to magnetic multipole degrees of freedom induced by a spin-orbit interaction, and (iii) s-wave superconductivity stabilized cooperatively by antiferromagnetic fluctuations and electron-phonon interaction contrary to conventional understanding. The book provides meaningful step for revealing essential roles of many-body eects behind long standing problems in strongly correlated materials.
Other form:Print version: Tazai, Rina Theory of Multipole Fluctuation Mediated Superconductivity and Multipole Phase Singapore : Springer Singapore Pte. Limited,c2021 9789811610257
Standard no.:10.1007/978-981-16-1026-4
Table of Contents:
  • General Introduction
  • Functional Renormalization Group (fRG) study
  • Cooperation of el-ph and AFM fluctuations for SC state
  • S-wave superconductivity in CeCu2Si2
  • Multipole phase.