Dzialoshinskii-Moriya interaction in the organic superconductor κ − ( BEDT − TTF ) 2 Cu [ N ( CN ) 2 ] Cl
Dzialoshinskii-Moriya interaction in the organic superconductor κ − ( BEDT − TTF ) 2 Cu [ N ( CN ) 2 ] Cl
复制标题
有机超导体中的 Dzialoshinskii-Moriya 相互作用 κ − ( BEDT − TTF ) 2 Cu [ N ( CN ) 2 ] Cl
DOI：
10.1103/physrevb.68.024512
复制
发表时间：
2003
影响因子：
3.7
通讯作者：
Roxanne G. Daugherty
中科院分区：
文献类型：
--
作者：
D. F. Smith;S. M. D. Soto;C. Slichter;J. Schlueter;A. Kini;Roxanne G. Daugherty
本文报道了有机超导体κ-(BEDT-TTf)_2Cu[N(CN)_2]Cl取向单晶的~3CNMR和磁化强度测量。为了理解这些数据，我们发展了一个基于Pnma对称性的自旋哈密顿量。当在这个哈密顿量的背景下解释时，测量提供了自旋有序的详细图像。研究发现，Dzialoshinskii-Moriya(DM)相互作用在很大程度上决定了自旋-翻转场上方的有序性。特别要注意的是，面间关联是由面内DM相互作用和外加电场方向决定的。
The authors report 1 3 C NMR and magnetization measurements on the magnetic state of oriented single crystals of the organic superconductor κ-(BEDT-TTF) 2 Cu[N(CN) 2 ]Cl. To understand these data a spin Hamiltonian based onthe Pnma symmetry of the crystal is developed. When interpreted in the context of this Hamiltonian, the measurements provide a detailed picture of the spin ordering. It is found that the Dzialoshinskii-Moriya (DM) interaction is largely responsible for the details of the ordering above the spin-flop field. Of particular note, the interplane correlations are determined by the intraplane DM interactions and the direction of the applied field.