English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We calculate the c-axis infrared conductivity $\sigma_c(\omega)$ inunderdoped cuprate superconductors for spinfluctuation exchange scatteringwithin the CuO$_2$-planes including a phenomenological d-wave pseudogap ofamplitude $E_g$. For temperatures decreasing below a temperature $T^* \simE_g/2$, a gap for $\omega < 2E_g$ develops in $\sigma_c(\omega)$ in theincoherent (diffuse) transmission limit. The resistivity shows 'semiconducting'behavior, i.e. it increases for low temperatures above the constant behaviorfor $E_g=0$. We find that the pseudogap structure in the in-plane opticalconductivity is about twice as big as in the interplane conductivity$\sigma_c(\omega)$, in qualitative agreement with experiment. This is aconsequence of the fact that the spinfluctuation exchange interaction issuppressed at low frequencies as a result of the opening of the pseudogap.While the c-axis conductivity in the underdoped regime is described best byincoherent transmission, in the overdoped regime coherent conductance gives abetter description.Comment: to be published in Phys. Rev. B (November 1, 1999

Effect of a normal-state pseudogap on optical conductivity in underdoped cuprate superconductors