Properties of a classical spin liquid: The Heisenberg pyrochlore antiferromagnet
Properties of a classical spin liquid: The Heisenberg pyrochlore antiferromagnet
复制标题
DOI：
10.1103/physrevlett.80.2929
复制
发表时间：
1998-03-30
影响因子：
8.6
通讯作者：
Chalker, JT
中科院分区：
文献类型：
--
作者：
Moessner, R;Chalker, JT
研究了烧绿石晶格上具有近邻相互作用的经典海森堡反铁磁体的低温行为。由于几何挫折，该模型的基态具有广泛的自由度。我们通过分析基态流形周围的小涨落的影响，并从Monte Carlo和分子动力学模拟的结果表明，该系统在所有温度T是无序的，并有一个有限的弛豫时间，它随T-1的小T。
We study the low-temperature behavior of the classical Heisenberg antiferromagnet with nearest neighbor interactions on the pyrochlore lattice. Because of geometrical frustration, the ground state of this model has an extensive number of degrees of freedom. We show, by analyzing the effects of small fluctuations around the ground-state manifold, and from the results of Monte Carlo and molecular dynamics simulations, that the system is disordered at all temperatures T and has a finite relaxation time, which varies as T-1 for small T.