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

An optimally doped iron-based superconductor LaFeAsO$_{0.92}$F$_{0.08}$ with$T_c = 29$ K has been studied by inelastic powder neutron scattering. Themagnetic excitation at $Q=1.15$ \AA$^{-1}$ is enhanced below $T_c$, leading toa peak at $E_{res}\sim13$ meV as the resonance mode, in addition to theformation of a gap at low energy below the crossover energy $\Delta_{c}\sim10meV$. The peak energy at $Q=1.15$ \AA$^{-1}$ corresponds to $5.2 k_B T_c$ ingood agreement with the other values of resonance mode observed in the variousiron-based superconductors, even in the high-$T_c$ cuprates. Although thephonon density of states has a peak at the same energy as the resonance mode inthe present superconductor, the $Q$-dependence is consistent with the resonancebeing of predominately magnetic origin.

Inelastic neutron scattering study on the resonance mode in an optimally doped superconductor LaFeAsO$_{0.92}$F$_{0.08}$