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 study the magnetic excitation spectra in the paramagnetic state ofBaFe$_{2}$As$_{2}$ from the \textit{ab initio} perspective. The one-particleexcitation spectrum is determined within the combination of the densityfunctional theory and the dynamical mean-field theory method. The two-particleresponse function is extracted from the local two-particle vertex function,also computed by the dynamical mean field theory, and the polarizationfunction. This method reproduces all the experimentally observed features ininelastic neutron scattering (INS), and relates them to both the one particleexcitations and the collective modes. The magnetic excitation dispersion iswell accounted for by our theoretical calculation in the paramagnetic statewithout any broken symmetry, hence nematic order is not needed to explain theINS experimental data.

The magnetic excitation spectra in BaFe$_{2}$As$_{2}$: a two-particle approach within DFT+DMFT