Work

Pressure-induced spin-state ordering in Sr2CoO3F

Year: 2019

Type: article

Abstract: We study theoretically low-temperature phases of a recently synthesized compound ${\mathrm{Sr}}_{2}{\mathrm{CoO}}_{3}\mathrm{F}$ under pressure. The analysis combining LDA+DMFT and a strong-coupling effective model points to the existence of not only normal paramagnetic and antiferromagnetic regimes, but also a spin-state ordered phase in a certain range of applied pressure and low temperature. This order is characterized by a checkerboard arrangement of different spin states of cobalt atoms in the lattice.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.99.205118

Authors: Juan Fernández Afonso, Andrii Sotnikov, Atsushi Hariki, Jan Kuneš

Institutions: TU Wien, Kharkiv Institute of Physics and Technology, Czech Academy of Sciences, FZU - Institute of Physics of the Czech Academy of Sciences

Language: Latvian

Topic: Magnetic and transport properties of perovskites and related materials

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: European Research Council, Horizon 2020

Award: G8221148009