在化物桥梁{Fe2Co2}磁性分子正方形中开/关光交换
Abhishake Mondal1, Yanling Li, Mannan Seuleiman
1Institut Parisien de Chimie Moléculaire (IPCM), UMR 7201, UPMC Paris 6, 4 place Jussieu, 75252 Paris cedex 5, France.
Journal of the American Chemical Society
|January 17, 2013
概括
在Fe-Co复合体中观察到一种新的光磁效应. 光可以在二磁性和二磁性状态之间可逆地切换材料,从而使数据存储中的潜在应用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 无机化学 无机化学
- 磁力学 磁力学 是一种
背景情况:
- 化物桥梁金属复合物提供可调节的磁性.
- 光磁效应允许光诱导磁状态的变化.
研究的目的:
- 为了研究化物桥梁Fe-Co方形复合物的光磁性质.
- 描述二磁性和二磁性状态之间的可逆切换.
主要方法:
- 进行磁性测量以评估磁性特性.
- 低温单晶X射线衍射用于结构分析.
主要成果:
- 观察到一个可重复的双向光磁效应.
- 808nm激光诱导的电子从Fe (II) -Co (III) 转移到Fe (III) -Co (II).
- 532nm激光光有效地恢复了二磁铁Fe (II) -Co (III) 状态.
结论:
- Fe-Co 复合体表现出一种可光切换的旋转状态过渡.
- 这种可逆光磁行为有可能用于分子开关和数据存储应用.
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