Transport Phenomena in Strongly Correlated Fermi Liquids
By: by Hiroshi Kontani
Contributors: SpringerLink (Online service)
Series: Springer Tracts in Modern Physics -- 251
Publisher: Springer Berlin Heidelberg; Imprint: Springer
Published: 2013
Place of publication: Berlin, Heidelberg
Language: eng
Format: [electronic resource] /
Number of pages: 173
ISBN-13: 9783642353659
Subjects: Physics; Superconductivity Strongly Correlated Systems; Condensed Matter Physics
Description: In conventional metals, various transport coefficients are scaled according to the quasiparticle relaxation time, \tau, which implies that the relaxation time approximation (RTA) holds well. However, such a simple scaling does not hold in many strongly correlated electron systems, reflecting their unique electronic states. The most famous example would be cuprate high-Tc superconductors (HTSCs), where almost all the transport coefficients exhibit a significant deviation from the RTA results. To better understand the origin of this discrepancy, we develop a method for calculating various transport coefficients beyond the RTA by employing field theoretical techniques. Near the magnetic quantum critical point, the current vertex correction (CVC), which describes the electron-electron scattering beyond the relaxation time approximation, gives rise to various anomalous transport phenomena. We explain anomalous transport phenomena in cuprate HTSCs and other metals near their magnetic or orbital quantum critical point using a uniform approach. We also discuss spin related transport phenomena in strongly correlated systems. In many d- and f-electron systems, the spin current induced by the spin Hall effect is considerably greater because of the orbital degrees of freedom. This fact attracts much attention due to its potential application in spintronics. We discuss various novel charge, spin and heat transport phenomena in strongly correlated metals.
Table of contents: title: Part I: Basic Concept; title: Introduction; title: Fluctuation theory; title: Anomalous transport phenomena in nearly AF Fermi liquids; title: Anomalous Hall effect (AHE) and spin Hall effect (SHE).- Part II: Transport phenomena in cuprate HTSCs above T*; title: Transport phenomena in HTSCs below T*; title: AC transport phenomena in HTSCs; title: Impurity effects in nearly AF metals; title: Anomalous transport behaviors in heavy fermions and organic superconductors; title: Multiorbital systems; title: AHE and SHE in multiorbital systems.