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

The electronic structures, lattice dynamics, and magnetic properties ofcrystal {\beta}-FeSe under hydrostatic pressure have been studied by using thefirst-principles electronic structure calculations with van der Waals (vdW)corrections. With applied pressures, the energy bands around the Fermi energylevel consisting mainly of Fe-3d orbitals show obvious energy shifts andoccupation variations, and meanwhile the frequencies of all optical phononmodes increase. Among these phonon modes, the A1g mode, which relates to the Seheight from the Fe-Fe plane, shows a clear frequency jump in the range between5 and 6 GPa. This is also the pressure range within which the highestsuperconducting transition temperature Tc of FeSe is reached in experiments. Incomparison with the other phonon modes, the zero-point vibration of the A1gmode induces the strongest fluctuation of local magnetic moment on Fe under apressure from 0 to 9 GPa, and the induced fluctuation reaches the maximumaround 5 GPa. These results suggest that the effect of phonon via spin-phononcoupling need to be considered when exploring the superconducting mechanism iniron-based superconductors.

physical review. b, condensed matter and materials physics

The influence of spin-phonon coupling on antiferromagnetic spin  fluctuations in FeSe under pressure: the First-principles calculations with  van der Waals corrections