RT Journal Article T1 High pressure synthesis of polar and non-polar cation ordered polymorphs of Mn2ScSbO6 A1 Solana Madruga, Elena A1 Dos Santos García, Antonio Juan A1 Arévalo-López, Ángel A1 Ávila Brande, David A1 Ritter, Clemens A1 Attfield, Paul A1 Sáez Puche, Regino AB Two new cation-ordered polymorphs of Mn2ScSbO6 have been synthesised at high-pressure. At 5.5 GPa and 1523 K Mn2ScSbO6 crystallizes in the Ni3TeO6-type structure with the polar R3 space group and cell parameters a = 5.3419 (5) Å and c = 14.0603 (2) Å. Below TC = 42.0 K it exhibits ferrimagnetic order with a net magnetization of 0.6μB arising from unusual site-selective Mn/Sc disorder and is thus a potential multiferroic material. A double perovskite phase obtained at 12 GPa and 1473 K crystallizes in the nonpolar P21/n monoclinic space group with cell parameters a = 5.2909 (3) Å, b = 5.4698 (3) Å, c = 7.7349 (5) Å and β = 90.165 (6) °. Magnetization and neutron diffraction experiments reveal antiferromagnetic order below TN = 22.3 K with the spins lying in the ac plane. PB Royal Society of Chemistry SN 1477-9226 YR 2015 FD 2015 LK https://hdl.handle.net/20.500.14352/92970 UL https://hdl.handle.net/20.500.14352/92970 LA eng NO E. Solana-Madruga, A. J. Dos santos-García, A. M. Arévalo-López, D. Ávila-Brande, C. Ritter, J. P. Attfield, R. Sáez-Puche. High pressure synthesis of polar and non-polar cation ordered polymorphs of Mn2ScSbO6. Dalton Trans. 2015, 44, 20441-20448. doi: 10.1039/c5dt03445k. NO Comunidad de Madrid NO Ministerio de Economía y Competitividad (España) DS Docta Complutense RD 21 abr 2025