Magnetic frustration in the high-pressure Mn2MnTeO6 (Mn3TeO6-II) double perovskite.
Magnetic frustration in the high-pressure Mn2MnTeO6 (Mn3TeO6-II) double perovskite.
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DOI：
10.1039/c9cc07733b
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发表时间：
2019-11
影响因子：
4.9
通讯作者：
Á. Arévalo-López;E. Solana-Madruga;C. Aguilar-Maldonado;C. Ritter;O. Mentré;J. Attfield
中科院分区：
文献类型：
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作者：
Á. Arévalo-López;E. Solana-Madruga;C. Aguilar-Maldonado;C. Ritter;O. Mentré;J. Attfield
通过刚玉前驱体的高压相变，获得了一种新的双钙钛矿结构的Mn_2MnTeO_6。在36 K以下，它是反铁磁性的，并形成了一种磁性结构，Mn 2+在A和B位的磁矩分别为4.8 μB和3.8 μB。这种新的多晶型占最近报道的压力下，可能会导致有用的捕光性能的Mn3TeO6的带隙减少。
A new double perovskite Mn2MnTeO6 has been obtained by high pressure phase transformation of a corundum-related precursor. It is antiferromagnetic below 36 K and develops a magnetic structure with magnetic moments of 4.8 μB and 3.8 μB for Mn2+ at the A and B sites respectively. This new polymorph accounts for a recently reported decrease in the bandgap of Mn3TeO6 under pressure that may lead to useful light-harvesting properties.