The Mechanism of the Magnetodielectric Response in a Molecule-Based Trinuclear Iron Cluster Material.,Angewandte Chemie International Edition

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The Mechanism of the Magnetodielectric Response in a Molecule-Based Trinuclear Iron Cluster Material.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-06-08 , DOI: 10.1002/anie.202007813
Dong Li ₁ , Xuan Wang ₁ , Hai-Xia Zhao ₁ , Yan-Ping Ren ₁ , Gui-Lin Zhuang ₂ , La-Sheng Long ₁ , Lan-Sun Zheng ₁

Affiliation

Magnetodielectric response mechanisms are critical for the rational design and synthesis of molecule‐based magnetodielectric materials. Herein, the magnetodielectric response was investigated in the molecule‐based material [Fe₃O(CH₃COO)₆(py)₃](py) (1 ). Its magnetodielectric coefficient (MD) is −2.8 % for phase transition III and −4.1 % for phase transition I. Study of the mechanism of the magnetodielectric response in 1 reveals that its magnetodielectric response at phase transition I is induced by the charge‐frustration of the trinuclear iron cluster, while that at phase transition III is attributed to the spin‐frustration of the trinuclear iron cluster, providing a new route for the design of magnetodielectric materials.

中文翻译：

分子基三核铁团簇材料中的磁电响应机理。

磁电响应机制对于合理设计和合成基于分子的磁电材料至关重要。在本文中，研究了基于分子的材料[Fe ₃ O（CH ₃ COO）₆（py）₃ ]（py）（1）的磁电响应。相变III的磁介电系数（MD）为-2.8％，相变I的磁介电系数为-4.1％。研究1中的磁电响应机理揭示了其在相变I时的磁电响应是由三核铁团簇的电荷挫折感引起的，而在相变III时则归因于三核铁团簇的自旋挫折感，为磁电设计提供了新途径材料。

更新日期：2020-08-10

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