A ROOM-TEMPERATURE MOLECULAR ORGANIC BASED MAGNET
A ROOM-TEMPERATURE MOLECULAR ORGANIC BASED MAGNET
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DOI：
10.1126/science.252.5011.1415
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发表时间：
1991-06-07
期刊：
影响因子：
56.9
通讯作者：
MILLER, JS
中科院分区：
文献类型：
--
作者：
MANRIQUEZ, JM;YEE, GT;MILLER, JS
双（苯）钒与四氰基乙烯，TCNE，反应提供了一种不溶性的无定形黑色固体，表现出磁场依赖性的磁化和磁滞在室温下。临界温度无法估计，因为它超过350开尔文，样品的热分解温度。所报道的材料的经验组成为V（TCNE）x-Y（CH 2Cl 2），其中x约为2，Y约为1/2。根据现有的磁性和红外数据，供体和受体自旋的三维反铁磁交换导致亚铁磁行为似乎是磁耦合的模式。
The reaction of bis(benzene)vanadium with tetracyanoethylene, TCNE, affords an insoluble amorphous black solid that exhibits field-dependent magnetization and hysteresis at room temperature. The critical temperature could not be estimated as it exceeds 350 kelvin, the thermal decomposition temperature of the sample. The empirical composition of the reported material is V(TCNE)x-Y(CH2Cl2) with x approximately 2 and Y approximately 1/2. On the basis of the available magnetic and infrared data, three-dimensional antiferromagnetic exchange of the donor and acceptor spins resulting in ferrimagnetic behavior appears to be the mode of magnetic coupling.