Two-dimensional magnetic correlations and partial long-range order in geometrically frustrated Sr2YRuO6.
نویسندگان
چکیده
Neutron diffraction on the double perovskite Sr(2)YRuO(6) with a quasi-fcc lattice of Ru moments reveals planar magnetic correlations that condense into a partial long-range ordered state with coupled alternate antiferromagnetic (AFM) YRuO(4) square layers coexisting with the short-range correlations below T(N1) = 32 K. A second transition to a fully ordered AFM state below T(N2) = 24 K is observed. The reduced dimensionality of the spin correlations is arguably due to a cancellation of the magnetic coupling between consecutive AFM square layers in fcc antiferromagnets, which is the simplest three-dimensional frustrated magnet model system.
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عنوان ژورنال:
- Physical review letters
دوره 110 1 شماره
صفحات -
تاریخ انتشار 2013