The crystal and magnetic structures of Ca2YRuO6 and the electronic properties of the series M2+2X3+Ru5+O6 (M = Ca,Sr, Ba; X = La,Y) |
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Authors: | P.D. Battle W.J. Macklin |
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Affiliation: | Inorganic Chemistry Laboratory, South Parks Road, Oxford OX1 3QR, England |
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Abstract: | Profile analysis of constant-wavelength powder neutron diffraction data has been used to refine the crystal structure of the ordered perovskite Ca2YRuO6. The material is monoclinic (space group ) with a disordered arrangement of calcium and yttrium on the A site and one of the B sites, such that the formula is best written as Ca1.43Y0.57[(Ca0.57Y0.43)Ru]O6. Low-temperature neutron diffraction experiments showed that the material is a Type I antiferromagnet at 2.5 K with an ordered magnetic moment of 1.2(1)μB per Ru5+. It is suggested that the dominant factor in determining the electronic properties of the series M2+2X3+Ru5+O6 (M = Ca, Sr, Ba; X = La, Y) is the Ru-Ru separation distance. |
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Keywords: | To whom correspondence is to be addressed. |
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