Exceptionally robust magnetism and structure of SrFeO[Formula: see text] above 100 GPa

V Balédent; L Nataf; J-P Rueff

doi:10.1038/s41598-022-20192-w

Exceptionally robust magnetism and structure of SrFeO[Formula: see text] above 100 GPa

Sci Rep. 2022 Sep 26;12(1):16018. doi: 10.1038/s41598-022-20192-w.

Authors

V Balédent¹, L Nataf², J-P Rueff^{2

3}

Affiliations

¹ Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France.
² Synchrotron SOLEIL, L'Orme des Merisiers, BP 48 St Aubin, 91192 Gif-sur-Yvette, France.
³ Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, 75005 Paris, France.

Abstract

We report the exceptional structural and magnetic stability of SrFeO[Formula: see text] under pressure by X-Ray Magnetic Circular Dichroism (XMCD) and X-ray Diffraction (XRD) up to the Mbar range. The XMCD data confirm the onset of ferromagnetism above 30 GPa and its stability up to 102 GPa while XRD shows that SrFeO[Formula: see text] structure remains unchanged from 30 GPa up to 111 GPa without any sign of structural transition. Our results demonstrate the robustness of Fe properties under extreme conditions in the square planar environment.