RT Journal Article
T1 Exploring the physical properties of Eu2SrCo1.5Mn0.5O7, a new n = 2 member of the Ruddlesden–Popper series (Eu,Sr)n+1(Co,Mn)nO3n+1
A1 Boulahya, Khalid
A1 Hassan, Manar
A1 Muñoz Gil, Daniel
A1 Romero Rodríguez, Julio
A1 Gómez Herrero, Adrián
A1 García Martín, Susana
A1 Amador, Ulises
AB A new oxide of the Ruddlesden–Popper series has been isolated and structurally characterized in the Eu–Sr–Co–Mn–O system. X-ray diffraction and electron microscopy show that polycrystalline Eu2SrCo1.5Mn0.5O7 constitutes the n ¼ 2 member of a homologous series, the essential feature of which is the existence of two connected Co/Mn octahedral layers, separated by Eu atoms. Electrochemical studies show that the area-specific resistance of this compound is 0.15 Omega cm2 at 700 ºC in air, a performance which is comparable to that of the best state-of-the-art materials used as cathodes in intermediate temperature solid oxide fuel cells. Below 150 K the title material presents two different magnetic phenomena. The first one corresponds to the formation of ferromagnetic nanoclusters (TC = 121 K) within an ordered Co2+/Mn4+ atomic configuration, whereas at lower temperature (21 K) a spin glass state occurs.
PB Royal Society of Chemistry
SN 2050-7488
YR 2015
FD 2015
LK https://hdl.handle.net/20.500.14352/99827
UL https://hdl.handle.net/20.500.14352/99827
LA eng
NO Boulahya, K., Hassan, M., Muñoz Gil, D. et al. «Exploring the Physical Properties of Eu 2 SrCo 1.5 Mn 0.5 O 7 , a New n = 2 Member of the Ruddlesden–Popper Series (Eu,Sr) n+1 (Co,Mn) n O 3n+1». Journal of Materials Chemistry A, vol. 3, n.o 45, 2015, pp. 22931-39. https://doi.org/10.1039/C5TA05464H.
NO Ministerio de Economía, Comercio y Empresa (España)
NO Comunidad de Madrid
DS Docta Complutense
RD 11 abr 2025