RT Journal Article
T1 Structural Chemistry and Magnetic Properties of the Hexagonal Double Perovskite Ba2CoOsO6
A1 Kayser González, Paula
A1 Orlandi, Fabio
A1 Avdeev, Maxim
A1 Zhang, Zhaoming
A1 Kimpton, Justin
A1 Kennedy, Brendan
AB The double perovskite Ba2CoOsO6, synthesized using solid-state methods at ambient pressure, is shown as a rare example of an oxide adopting the 6L-trigonal (S.G.: P3̅m1) perovskite structure. The structure, refined using a combination of X-ray and neutron diffraction data, showed the Co and Os were ordered over the two dimer sites with additional ordering over the corner-sharing sites. Bond valence calculations show the presence of the Co(II) and Os(VI) valence states, and the latter was confirmed using X-ray absorption spectroscopy. Bulk magnetic susceptibility measurements show Ba2CoOsO6 to undergo antiferromagnetic ordering near 100 K, and neutron diffraction showed an ordered moment on the Co3, Co4, and Os2 sites; whereas the Os1/Co1 remained disordered.
PB American Chemical Society
SN 0020-1669
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/92219
UL https://hdl.handle.net/20.500.14352/92219
LA eng
NO Kayser, Paula, et al. «Structural Chemistry and Magnetic Properties of the Hexagonal Double Perovskite Ba 2 CoOsO 6». Inorganic Chemistry, vol. 59, n.o 9, mayo de 2020, pp. 6613-22. https://doi.org/10.1021/acs.inorgchem.0c00761.
DS Docta Complutense
RD 12 abr 2025