TY - JOUR
T1 - Magnetically Frustrated Double Perovskites
T2 - Synthesis, Structural Properties, and Magnetic Order of Sr2BOsO6 (B = Y, In, Sc)
AU - Paul, Avijit Kumar
AU - Sarapulova, Angelina
AU - Adler, Peter
AU - Reehuis, Manfred
AU - Kanungo, Sudipta
AU - Mikhailova, Dana
AU - Schnelle, Walter
AU - Hu, Zhiwei
AU - Kuo, Changyang
AU - Siruguri, Vasudeva
AU - Rayaprol, Sudhindra
AU - Soo, Yunlian
AU - Yan, Binghai
AU - Felser, Claudia
AU - Tjeng, Liu Hao
AU - Jansen, Martin
PY - 2015/2
Y1 - 2015/2
N2 - Double perovskites Sr2BOsO6 (B = Y, In, and Sc) were prepared from the respective binary metal oxides, and their structural, magnetic, and electronic properties were investigated. At room temperature all these compounds crystallize in the monoclinic space group P2(1)/n. They contain magnetic osmium (Os5+, t(2g)(3)) ions and are antiferromagnetic insulators with Neel temperatures T-N = 53 K, 26 K, and 92 K for B = Y, In, and Sc, respectively. Powder neutron diffraction studies on Sr2YOsO6 and Sr2InOsO6 showed that the crystal structures remain unchanged down to 3 K. The Y and In compounds feature a type I antiferromagnetic spin structure with ordered Os moments of 1.91 mu B and 1.77 mu B, respectively. The trend in TN does not simply follow the development of the lattice parameters, which suggests that d(0) compared to d(10) ions on the B site favor a somewhat different balance of exchange interactions in the frustrated Os5+ fcc-like lattice.
AB - Double perovskites Sr2BOsO6 (B = Y, In, and Sc) were prepared from the respective binary metal oxides, and their structural, magnetic, and electronic properties were investigated. At room temperature all these compounds crystallize in the monoclinic space group P2(1)/n. They contain magnetic osmium (Os5+, t(2g)(3)) ions and are antiferromagnetic insulators with Neel temperatures T-N = 53 K, 26 K, and 92 K for B = Y, In, and Sc, respectively. Powder neutron diffraction studies on Sr2YOsO6 and Sr2InOsO6 showed that the crystal structures remain unchanged down to 3 K. The Y and In compounds feature a type I antiferromagnetic spin structure with ordered Os moments of 1.91 mu B and 1.77 mu B, respectively. The trend in TN does not simply follow the development of the lattice parameters, which suggests that d(0) compared to d(10) ions on the B site favor a somewhat different balance of exchange interactions in the frustrated Os5+ fcc-like lattice.
U2 - https://doi.org/10.1002/zaac.201400590
DO - https://doi.org/10.1002/zaac.201400590
M3 - مقالة
SN - 0044-2313
VL - 641
SP - 197
EP - 205
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
IS - 2
ER -