THE CRYSTAL AND MAGNETIC-STRUCTURES OF SR2LURUO6, BA2YRUO6, AND BA2LURUO6
Powder neutron diffraction data have been used to refine the crystal and magnetic structures of the ordered perovskites Sr2LuRuO6, Ba2YRuO6, and Ba2LuRuO6. Sr2LuRuO6 is monoclinic, with space groupP21n: a = 5.7400(1), b = 5.7375(1), c = 8.1118(2)Å, β = 90.16(1)°. Ba2YRuO6 and Ba2LuRuO6 are cubic, wi...
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| Médium: | Journal article |
| Jazyk: | English |
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1989
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| Shrnutí: | Powder neutron diffraction data have been used to refine the crystal and magnetic structures of the ordered perovskites Sr2LuRuO6, Ba2YRuO6, and Ba2LuRuO6. Sr2LuRuO6 is monoclinic, with space groupP21n: a = 5.7400(1), b = 5.7375(1), c = 8.1118(2)Å, β = 90.16(1)°. Ba2YRuO6 and Ba2LuRuO6 are cubic, with space groupFm3m: a = 8.3390(5) and 8.2720(4)Å, respectively. All three compounds are Type I antiferromagnets at 4.2 K with an ordered magnetic moment of ∼2 μB per Ru5+. High-temperature magnetic susceptibility data suggest that the Ru5+d-electrons in all three compounds should be regarded as itinerant rather than localized. © 1989 Academic Press, Inc. All rights reserved. |
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