Noncollinear Two-Component Quasirelativistic Description of Spin Interactions in Exchange-Coupled Systems. Mapping Generalized Broken-Symmetry States to Effective Spin Hamiltonians.
Noncollinear Two-Component Quasirelativistic Description of Spin Interactions in Exchange-Coupled Systems. Mapping Generalized Broken-Symmetry States to Effective Spin Hamiltonians.
复制标题
交换耦合系统中自旋相互作用的非共线二分量准相对论描述将广义破缺对称态映射到有效自旋哈密顿量
DOI:
10.1021/acs.jctc.7b01067
复制
发表时间:
2018
影响因子:
5.5
通讯作者:
M. Kaupp J.
中科院分区:
文献类型:
--
作者:
A. Wodyński;M. Kaupp J.
We provide a consistent mapping of noncollinear two-component quasirelativistic DFT energies with appropriate orientations of localized spinor quantization axes for multinuclear exchange-coupled transition-metal complexes onto an uncoupled anisotropic effective spin Hamiltonian. This provides access to the full exchange interaction tensor between the centers of spin-coupled systems in a consistent way. The proposed methodology may be best viewed as a generalized broken-symmetry density functional theory approach (gBS-DFT). While the calculations provided are limited to trinuclear systems ([M3O(OOCH)6(H2O)3]+, where M = Cr(III), Mn(III), Fe(III)) withC3symmetry, the method provides a general framework that is extendable to arbitrary systems. It offers an alternative to previous approaches to single-ion zero-field splittings, and it provides access to the less often examined antisymmetric Dzyaloshinskii–Moriya exchange interaction. Spin–orbit coupling is included self-consistently. This will be of particular importance for complexes involving 4d or 5d transition metal centers or possibly also for f-block elements, where a perturbational treatment of spin–orbit coupling may not be valid anymore. While a comparison with experimental data was indirect due to simplifications in the chosen model structures, the agreement obtained indicates the essential soundness of the presented approach.
登录
查看更多内容
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
Y. Rakitin;Y. Yablokov;V. Zelentsov
通讯作者:
V. Zelentsov
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
L. Sandratskii
通讯作者:
L. Sandratskii
影响因子:
4.4
作者:
Peng, Daoling;Middendorf, Nils;Reiher, Markus
通讯作者:
Reiher, Markus
影响因子:
4.6
作者:
M. Retegan;N. Cox;D. Pantazis;F. Neese
通讯作者:
F. Neese
DOI:
10.1063/1.3134430
发表时间:
2009
期刊:
The Journal of chemical physics
影响因子:
--
作者:
C. van Wüllen
通讯作者:
C. van Wüllen