Magnetic order and moment distribution in doped spin-chain systems
Magnetic order and moment distribution in doped spin-chain systems
复制标题
掺杂自旋链系统中的磁序和矩分布
DOI：
10.1016/j.jmmm.2003.12.1088
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发表时间：
2004
影响因子：
2.7
通讯作者：
I. Affleck
中科院分区：
文献类型：
--
作者：
S. Eggert;I. Affleck
研究了掺杂对准一维反铁磁体磁序的影响。首先，有限自旋1 - 2链在交错场的存在下的详细的磁响应被确定，这本身就显示了一个有趣的交叉作为长度和场强的函数。然后，我们可以通过包括链之间的有效耦合来理解有序，这导致在低温下的Néel有序相，但具有必须自洽确定的广泛磁矩分布。
We consider the effect of doping on the magnetic order in quasi one-dimensional (1D) antiferromagnets. First the detailed magnetic response of finite spin-1 2 chains in the presence of a staggered field is determined, which by itself shows an interesting crossover as function of length and field strength. We can then understand the ordering by including an effective coupling between the chains, which results in a Néel-ordered phase at low temperatures, but with a broad distribution of magnetic moments that has to be determined self-consistently.