Dielectric response in high T<inf>c</inf> superconductors

F. López-Aguilar, J. Costa-Quintana, S. Balle, F. Febrero, M. T. Aurell, A. Sánchez, J. S. Muñoz

Research output: Contribution to journalArticleResearchpeer-review

1 Citation (Scopus)


The random phase approximation integral equation is solved for obtaining the dynamically screened interaction between d electrons (Wd(ω)), p electrons (Wp(ω)) and p d electrons (Wpd(ω)). Some characteristic divergence of this last interaction correspond to the plasmon frequencies which one can relate with the effective masses of the p and d electrons close to EF by means of the relation ωp1 ωp2 = ( m2 m1) 1 2. ZAnother feature of this Wpd(ω) interaction is the attractive character for low frequencies. The lowest frequency for which εpd = 0 decreases when the localization of states close to EF arising from the χ2-y2 symmetry increases. © 1989.
Original languageEnglish
Pages (from-to)759-760
JournalPhysica C: Superconductivity and its Applications
Issue numberPART 1
Publication statusPublished - 1 Jan 1989


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