Photoinduced Metal-to-Metal Charge Transfer toward Single-Chain Magnet
Photoinduced Metal-to-Metal Charge Transfer toward Single-Chain Magnet
复制标题
DOI：
10.1021/ja1027953
复制
发表时间：
2010-06-23
影响因子：
15
通讯作者：
Sato, Osamu
中科院分区：
文献类型：
--
作者：
Liu, Tao;Zhang, Yan-Juan;Sato, Osamu
单链磁体（SCM）表现出缓慢的磁化弛豫，吸引了相当多的关注。利用诸如光、热和压力等外部刺激来调整这些材料的性质是一个挑战。通过利用光和热诱导的反磁性Fe-Ls相变，（平行于）（mu-CN）Co-Ls（竖条）（LS =低自旋）单元和顺磁性Fe-Ls（vertical bar vertical bar vertical bar）（mu-CN）Co-Hs（parallel to）（HS =高自旋）单位，我们展示了从顺磁态到反铁磁有序SCM态的光开关转变以及热诱导的逆转变，从而提供了一种通过光或热诱导的金属-金属电荷转移来控制SCM的自旋拓扑的有效方法。
Single-chain magnets (SCMs) that exhibit slow relaxation of their magnetization are attracting considerable attention. To tune the properties of such materials with external stimuli such as light, heat, and pressure is a challenge. Through the exploitation of light and heat induced transformation between diamagnetic Fe-Ls(parallel to)(mu-CN)Co-Ls(vertical bar vertical bar vertical bar) (LS = low spin) units and paramagnetic Fe-Ls(vertical bar vertical bar vertical bar)(mu-CN)Co-Hs(parallel to) (HS = high spin) units, we show the photoswitched transformation from a paramagnetic state to an antiferromagnetic ordered SCM state and the thermally induced reverse transformation, thus providing an effective way to control the spin topology of the SCM via light or a thermally induced metal-to-metal charge transfer.