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Title: Structural and magnetic properties of the ruthenium double perovskites Ba2−xSrxYRuO6
Authors: Ranjbar, B
Pavan, AF
Kennedy, BJ
Zhang, Z
Keywords: Magnetic properties
X-ray diffraction
Synchrotron radiation
Crystal structure
Neel temperature
Issue Date: 19-Jan-2015
Publisher: Royal Society of Chemistry
Citation: Ranjbar, B., Pavan, A., Kennedy, B. J., & Zhang, Z. (2015). Structural and magnetic properties of the ruthenium double perovskites Ba2−xSrxYRuO6. Dalton Transactions, 44(23), 10689-10699. doi:10.1039/c4dt03682d
Abstract: The crystal structures of the series of ordered double perovskites Ba2−xSrxYRuO6 (0 ≤ x ≤ 2) were studied by high resolution synchrotron X-ray diffraction. The materials displayed a sequence of structures image file: c4dt03682d-t1.tif associated with increasing tilting of the corner sharing octahedra. The same sequence of structures can be induced by varying the temperature of appropriate members of the series. Magnetic susceptibility measurements demonstrate the oxides to be antiferromagnets with a Neel temperature of ∼30 K. There is a simple correlation between the Weiss constant θ and the Ru–O–Y bond angle. The two Sr rich oxides (x = 1.8 and 2.0) display an, unusual, sharp minimum in susceptibility at low temperatures that is associated with the reorientation of the spins. © 2015 The Royal Society of Chemistry
Gov't Doc #: 9082
ISSN: 1477-9226
Appears in Collections:Journal Articles

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