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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report the observation of an unusual behavior of highly extended 5delectrons in Y2Ir2O7 belonging to pyrochlore family of great current interestusing high resolution photoemission spectroscopy. The experimental bulk spectrareveal an intense lower Hubbard band in addition to weak intensities in thevicinity of the Fermi level, e_F. This provides a direct evidence for strongelectron correlation among the 5d electrons, despite their highly extendednature. The high resolution spectrum at room temperature exhibits a pseudogapat e_F and |e - e_F|^2 dependence demonstrating the importance of electroncorrelation in this system. Remarkably, in the magnetically ordered phase (T <150 K), the spectral lineshape evolves to a |e - e_F|^1.5 dependenceemphasizing the dominant role of electron-magnon coupling.

Evidence for strong 5d electron correlations and electron-magnon coupling in a pyrochlore, Y2Ir2O7