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[CH3NH3][Co(HCOO) 3の磁性オーダーリング誘発型マルチフェロ性行為
L Claudia Gómez-Aguirre1, Breogán Pato-Doldán1, J Mira2
1Department of Fundamental Chemistry, Faculty of Sciences, University of A Coruña , 15071 A Coruña, Spain.
Journal of the American Chemical Society
|December 31, 2015
まとめ
金属有機構造の磁石に 多重鉄素の性質を発見しました この反鉄磁石は 磁場下での記憶効果を示しています
科学分野:
- 材料科学
- 固体物理学
- 化学について
背景:
- メタル・オーガニック・フレームワーク (MOF) は,新しい性質のための調整可能な構造を提供します.
- マルチフェロ材料は,結合された磁気と電気の順序を示します.
- マルチフェロイドの行動に関するMOFの調査は,新興の研究分野である.
研究 の 目的:
- MOFにおける磁性オーダーリング誘発型マルチフェロ性行為の最初の事例を報告する.
- [CH3NH3][Co(HCOO) 3の磁気および電気的性質を記述する.
- 観察された多鉄結合の背後にあるメカニズムを明らかにする.
主な方法:
- [CH3NH3][Co(HCOO) ]化合物の合成と構造分析
- 磁気感受性および磁気化測定
- 適用された磁場の下での電極化測定.
主要な成果:
- 化合物[CH3NH3][Co(HCOO) ]は15.9K以下のマルチフェロ性行動を示している.
- 磁気配列は,ジアロシンスキー-モリア (DM) 相互作用による弱い磁気配列の反鉄磁気配列である.
- 特定の結晶学的な方向に沿った結合された磁気と電気のスイッチングが観察され,異常な電気極化メモリ効果があります.
結論:
- [CH3NH3][Co(HCOO) ]は新しいマルチフェロ材料である.
- 観察されたマルチフェロイドの行動は,逆のDMメカニズムに起因する.
- この発見は,MOFベースのマルチフェロインの応用に新しい道を開く.
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