Guiding antiferromagnetic transitions in Ca2RuO4

DOI: 10.1038/s41598-022-14932-1

Authors: D. G. Porter (Diamond Light Source) , F. Forte (CNR-SPIN, c/o Universitá di Salerno-Via Giovanni Paolo II; Universitá di Salerno) , V. Granata (Universitá di Salerno) , M. Cannavacciuolo (Universitá di Salerno) , R. Fittipaldi (CNR-SPIN, c/o Universitá di Salerno-Via Giovanni Paolo II; Universitá di Salerno) , M. Cuoco (CNR-SPIN, c/o Universitá di Salerno-Via Giovanni Paolo II; Universitá di Salerno) , A. Bombardi (Diamond Light Source) , A. Vecchione (CNR-SPIN, c/o Universitá di Salerno-Via Giovanni Paolo II; Universitá di Salerno)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Scientific Reports , VOL 12

State: Published (Approved)
Published: June 2022
Diamond Proposal Number(s): 22052 , 18967

Abstract: Understanding and controlling the transition between antiferromagnetic states having different symmetry content with respect to time-inversion and space-group operations are fundamental challenges for the design of magnetic phases with topologically nontrivial character. Here, we consider a paradigmatic antiferromagnetic oxide insulator, Ca2RuO4, with symmetrically distinct magnetic ground states and unveil a novel path to guide the transition between them. The magnetic changeover results from structural and orbital reconstruction at the transition metal site that in turn arise as a consequence of substitutional doping. By means of resonant X-ray diffraction we track the evolution of the structural, magnetic, and orbital degrees of freedom for Mn doped Ca2RuO4 to demonstrate the mechanisms which drive the antiferromagnetic transition. While our analysis focuses on a specific case of substitution, we show that any perturbation that can impact in a similar way on the crystal structure, by reconstructing the induced spin–orbital exchange, is able to drive the antiferromagnetic reorganization.

Journal Keywords: Electronic properties and materials; Magnetic properties and materials; Phase transitions and critical phenomena

Diamond Keywords: Ferromagnetism; Antiferromagnetism

Subject Areas: Materials, Physics


Instruments: I16-Materials and Magnetism

Added On: 30/06/2022 08:53

Documents:
s41598-022-14932-1.pdf

Discipline Tags:

Quantum Materials Hard condensed matter - electronic properties Physics Magnetism Materials Science

Technical Tags:

Scattering Resonant Soft X-ray Scattering (RSXS)