Complex magnetism in Ni 3 TeO 6 -type Co 3 TeO 6 and high-pressure polymorphs of Mn 3−x Co x TeO 6 solid solutions - Archive ouverte HAL
Article Dans Une Revue Chemical Communications Année : 2021

Complex magnetism in Ni 3 TeO 6 -type Co 3 TeO 6 and high-pressure polymorphs of Mn 3−x Co x TeO 6 solid solutions

Résumé

New Ni3TeO6-type (NTO) and double perovskite (DPv) polymorphs of Co3TeO6 are synthesised at pressures of 15 GPa. A complex elliptic helical magnetic order is observed in the NTO polymorph (TN1 = 58 K) that reorientates (42 K) and further splits (TN2 = 23.5 K) creating a coexisting helix. Increasing Co content within the Mn3-xCoxTeO6 system changes the dominant DPv phase to NTO structural type and drastically modifies the magnetic behaviour. DPv Co3TeO6 is the first A-site double cobaltite.
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Dates et versions

hal-03289757 , version 1 (18-07-2021)

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Elena Solana-Madruga, Cintli Aguilar-Maldonado, Clemens Ritter, Marielle Huvé, Olivier Mentré, et al.. Complex magnetism in Ni 3 TeO 6 -type Co 3 TeO 6 and high-pressure polymorphs of Mn 3−x Co x TeO 6 solid solutions. Chemical Communications, 2021, 57 (20), pp.2511-2514. ⟨10.1039/D0CC07487J⟩. ⟨hal-03289757⟩
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