Co5/3Nb1/3BO4: A new cobalt oxyborate with a complex magnetic structure

Kazak, NV ; Belskaya, NA ; Moshkina, EM ; Bezmaternykh, LN ; Vasiliev, AD ; Bartolome, J ; Arauzo, A (Universidad de Zaragoza) ; Velikanov, DA ; Gavrilkin, SY ; Gorev, MV ; Patrin, GS ; Ovchinnikov, SG

Resumen: Needle-shape single crystals of Co5/3Nb1/3BO4 warwickite were grown using the flux technique. X-ray diffraction measurements have revealed an orthorhombic structure (Sp. Gr. Pbnm) where the octahedral M1 site is occupied by a mixture of Co2+/Nb5+ ions and the M2 site is exclusively filled by Co2+ ions. Using dc magnetization measurements it was established that the new material undergoes two magnetic transitions: an antiferromagnetic transition at TN1 = 27 K and a ferrimagnetic one at TN2 = 14 K, below which a hysteresis cycle opens. Both magnetic transitions are marked by anomalies in the specific heat. High magnetic anisotropy with c-axis as a hard magnetization direction was detected.

Idioma: Inglés

DOI: 10.1016/j.jmmm.2021.168056

Año: 2021

Publicado en: Journal of Magnetism and Magnetic Materials 534 (2021), 168056
ISSN: 0304-8853

Factor impacto JCR: 3.097 (2021)

Categ. JCR: PHYSICS, CONDENSED MATTER rank: 35 / 69 = 0.507 (2021) - Q3 - T2
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 206 / 344 = 0.599 (2021) - Q3 - T2

Factor impacto CITESCORE: 5.5 - Physics and Astronomy (Q1) - Materials Science (Q2)

Factor impacto SCIMAGO: 0.606 - Electronic, Optical and Magnetic Materials (Q2) - Condensed Matter Physics (Q2)

Tipo y forma: Article (PostPrint)

Área (Departamento): Servicios. Div.Caract.Físi.Quí (Serv.Gral. Apoyo Investigación)