Magnetic order and magnetic properties of the oxygen deficient SmBaMn2O5 layered perovskite

Blasco, J. ; Rodríguez-Velamazán, J.A. ; Subías, G. ; Sánchez, M.C. ; García-Muñoz, J.L.

Resumen: Magnetism in SmBaMn2O5 was investigated on a single crystal by magnetic and neutron diffraction measurements. This is an oxygen deficient perovskite with a layered ordering of Sm and Ba cations. Mn atoms are coordinated with five oxygens forming a square pyramid and they are ordered in a checkerboard pattern of expanded-compressed pyramids in the ab-plane. The neutron diffraction study revealed a ferrimagnetic ordering of Mn moments below TN=134 K. Macroscopic measurements reveal a very anisotropic behavior. Measurements with the external magnetic field parallel (M||c) and perpendicular (M¿c) to the c-axis confirm that this is the easy axis above 10 K. Below this temperature, the Sm sublattice begins to polarize and the magnetization M||c decreases while M¿c experiences a huge increase. This indicates that Sm moments begin to order around 10 K in the ab-plane with a minor component on the c-axis that opposes the overall magnetization from Mn sublattices.

Idioma: Inglés

DOI: 10.1016/j.materresbull.2022.111780

Año: 2022

Publicado en: Materials Research Bulletin 150 (2022), 20233151 [7 pp]
ISSN: 0025-5408

Factor impacto JCR: 5.4 (2022)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 108 / 343 = 0.315 (2022) - Q2 - T1

Factor impacto CITESCORE: 9.4 - Engineering (Q1) - Physics and Astronomy (Q1) - Materials Science (Q1)

Factor impacto SCIMAGO: 0.843 - Condensed Matter Physics (Q1) - Mechanics of Materials (Q1) - Mechanical Engineering (Q1) - Materials Science (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/E12-20R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CEX2019-000917-S
Financiación: info:eu-repo/grantAgreement/ES/MICINN-FEDER/RTI2018-098537-B-C22
Financiación: info:eu-repo/grantAgreement/ES/MINECO/SEV-2015-0496

Tipo y forma: Article (PostPrint)