The Mn₃WO₆ oxide, prepared by a solid-state reaction at ambient pressure, is found to crystallize at room temperature in the centrosymmetric R3̅ trigonal structure of Mg₃TeO₆. By X-ray absorption spectroscopy (XAS) at the Mn-L_2,3 edges, a divalent oxidation state for manganese is established, consistent with W⁶⁺ and O^2–, which fits with the value extracted from analyzing the paramagnetic regime. Interestingly, anomalies in dielectric and pyroelectric measurements can be observed concomitant with the antiferromagnetic transition at T_N ≈ 25 K. The corresponding electrical polarization, P = ±15 μC m^–2 below T_N, can be inverted by opposite poling, which confirms that Mn₃WO₆ is a spin-induced multiferroic (MF) material.

中文翻译：

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中心对称Mn ₃ WO _6中的自旋诱导多铁性行为

将Mn ₃ WO ₆的氧化物，通过在环境压力的固态反应制备，被发现在室温下在中心对称结晶- [R 3的Mg三方结构₃的TeO ₆。通过在Mn-L _2,3边缘的X射线吸收光谱（XAS），建立了锰的二价氧化态，与W ⁶⁺和O ^2–一致，这与分析顺磁态所提取的值相符。有趣的是，在电介质和热电测量异常可以观察到伴随着在反铁磁性过渡Ť _Ñ ≈25 K的相应的电偏振，低于T _N的P =±15μCm ^–2可以通过相反的极化来反转，这证明Mn ₃ WO ₆是自旋诱导的多铁性材料。