具有磁弛豫的一维稀土体系

来源 :中国科协第282次青年科学家论坛——化学与生物和能源的交叉与融合 | 被引量 : 0次 | 上传用户：yun603

【摘要】

：

　　稀土单离子磁体的控制合成是当前分子磁体的热点研究领域.1 我们通过选择不同的配体，合成了系列具有一维结构的稀土化合物.结构分析表明在这些一维体系中稀土离子具有四方

【作者】

：

孙豪岭

【机构】

：

北京师范大学化学学院,100875,北京

【出处】

：

中国科协第282次青年科学家论坛——化学与生物和能源的交叉与融合

【发表日期】

：

2014年8期

【关键词】

：

稀土单离子磁体磁弛豫磁相互作用

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　　稀土单离子磁体的控制合成是当前分子磁体的热点研究领域.1 我们通过选择不同的配体，合成了系列具有一维结构的稀土化合物.结构分析表明在这些一维体系中稀土离子具有四方反棱柱或者五角双锥的配位环境，并通过不同的桥联配体连接形成一维结构.对这些一维体系的交流磁化率研究表明它们在低温下都具有磁弛豫行为(包括量子遂川与热弛豫行为).量子遂川与热弛豫行为一方面与稀土离子的配位环境密切相关，另一方面也与稀土离子间的磁相互作用密切相关.进一步对稀释体系的磁性研究表明该类体系中稀土离子间的铁磁相互作用会加强量子遂川行为.

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具有磁弛豫的一维稀土体系

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