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Short-Range Spin Order and Frustrated Magnetism in Mn2InSbO6 and Mn2ScSbO6

✍ Scribed by Sergey Ivanov; Per Nordblad; Roland Mathieu; Roland Tellgren; Ekaterina Politova; Gilles André

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
793 KB
Volume
2011
Category
Article
ISSN
1434-1948

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✦ Synopsis

The complex metal oxides Mn 2 ASbO 6 (A = In, Sc) with a corundum-related structure A 3 BO 6 were prepared as polycrystalline powders by a solid-state reaction route. Their crystal structure and magnetic properties were investigated by using a combination of X-ray and neutron powder diffraction, electron microscopy, calorimetric, and magnetic measurements. At room temperature, these compounds adopt a trigonal structure, space group R3 ¯, with a = 8.9313(1) Å, c = 10.7071(2) Å (for In) and a = 8.8836(1) Å, c = 10.6168(2) Å (for Sc), which persists down to 1.6 K. The Mn and A cations were found to be randomly distributed over the A sites. The overall behavior of the magnetization of Mn 2 InSbO 6 and that of [a

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