Magnetic characterization of the frustrated three-leg ladder compound [(CuCl2tachH)3Cl]Cl2
Magnetic characterization of the frustrated three-leg ladder compound [(CuCl2tachH)3Cl]Cl2
复制标题
受抑三腿梯化合物 [(CuCl2tachH)3Cl]Cl2 的磁性表征
DOI：
10.1103/physrevb.70.174420
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发表时间：
2004
影响因子：
3.7
通讯作者：
L. Cronin
中科院分区：
文献类型：
--
作者：
J. Schnack;H. Nojiri;P. Koegerler;Geoffrey J T Cooper;L. Cronin
我们报道了一维堆叠的反铁磁耦合等边铜（II）三角形的磁性特征。高场磁化测量表明，铜三角形之间的相互作用是相同的数量级的三角形内交换，虽然只通过氢键耦合。这个无限长的链是一个有趣的例子，它是一个受挫折的圆柱形三腿梯子，具有三角形内和三角形间的相互作用。我们证明了基态是一个自旋单重态，它是从三重态激发中被打开的。
We report the magnetic features of a one-dimensional stack of antiferromagnetically coupled equilateral copper(II) triangles. High-field magnetization measurements show that the interaction between the copper triangles is of the same order of magnitude as the intratriangle exchange although only coupled via hydrogen bonds. The infinite chain turns out to be an interesting example of a frustrated cylindrical three-leg ladder with competing intra- and inter-triangle interactions. We demonstrate that the ground state is a spin singlet which is gaped from the triplet excitation.