162131 20260107185711.0 doi 10.1103/PhysRevB.106.134403 sideral 130554 ART-2022-130554 eng Blasco, J. Universidad de Zaragoza (orcid)0000-0002-2567-9529 Structural and magnetic properties of Ca 3 Mn 2 - x Ru x O 7 ( 0 < x = 0.9 ) 2022 We here report on the study of the crystallographic and magnetic properties of layered perovskites Ca3Mn2−xRuxO7 (x 0.9). We observe a solid solution between Mn and Ru atoms in the whole series and all samples present the same orthorhombic structure independently of the Ru content. Different magnetic structures, depending on the Ru content in the sample, have been determined using neutron powder diffraction. For low Rudoping (x 0.1), there is a dominant G-type antiferromagnetic ordering in the perovskite bilayers but, differently from undoped Ca3Mn2O7, the magnetic moments are located on the ab plane. For higher Ru concentration (x 0.3), the predominant G-type ordering is preserved along the y axis while an A-type component is developed along the x axis and its intensity increases as Ru content does. This component is characterized by a ferromagnetic ordering in the a direction of one of the Mn(Ru)O6 layers, coupled antiferromagnetically with the neighbor Mn(Ru)O6 layer within the same bilayer. The study of the macroscopic magnetic properties shows that ferromagneticlike correlations are enhanced with increasing Ru content as deduced from the shift to higher temperature of the onset of the magnetic transition temperature. The magnetic transitions take place in two steps. At higher temperatures (140–200 K), short-range magnetic correlations are established. Tiny spontaneous magnetization is observed in the hysteresis loops with small coercive field. At TN ≈ 115–125 K, long-range antiferromagnetic ordering is developed. The ferromagnetic component remains with a strong increase of coercivity. We discuss in the paper the possible origins of this ferromagnetic contribution. info:eu-repo/grantAgreement/ES/AEI/CEX2019-000917-S info:eu-repo/grantAgreement/ES/DGA-FSE/E12-17R-RASMIA info:eu-repo/grantAgreement/ES/MINECO/RTI2018-098537-B-C21 info:eu-repo/grantAgreement/ES/MINECO/RTI2018-098537-B-C22 info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.7 2022 MATERIALS SCIENCE, MULTIDISCIPLINARY 157 / 343 = 0.458 2022 Q2 T2 PHYSICS, CONDENSED MATTER 24 / 67 = 0.358 2022 Q2 T2 PHYSICS, APPLIED 50 / 160 = 0.312 2022 Q2 T1 1.468 2022 Electronic, Optical and Magnetic Materials 2022 Q1 Condensed Matter Physics 2022 Q1 6.7 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Rodríguez-Velamazán, J. A. García-Muñoz, J. L. Cuartero, V. Universidad de Zaragoza (orcid)0000-0002-8021-8709 Lafuerza, S. (orcid)0000-0001-8303-932X Subías, G. 5001 600 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Mecánica de Fluidos 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 106, 13 (2022), 134403 [12 pp.] Phys. Rev. B Physical Review B 2469-9950 2801261 http://zaguan.unizar.es/record/162131/files/texto_completo.pdf Versión publicada 2967732 http://zaguan.unizar.es/record/162131/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:162131 articulos driver 2026-01-07-18:55:45 ARTICLE