"Glassy Dynamics" in Ising Spin Glasses-Experiment and Simulation-
"Glassy Dynamics" in Ising Spin Glasses-Experiment and Simulation-
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伊辛自旋玻璃中的“玻璃动力学”-实验与模拟-
DOI：
10.1143/jpsj.74.1131
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发表时间：
2004
影响因子：
1.7
通讯作者：
H. Takayama
中科院分区：
文献类型：
--
作者：
P. Jonsson;H. Takayama
通过Fe 0.55 Mn 0.45 TiO 3 实验和三维Edwards-Anderson模型数值模拟研究了伊辛自旋玻璃在较小磁场下的场冷磁化（FCM）过程。这两个结果都通过液滴图片以统一的方式解释。特别是，FCM 的尖点状行为被解释为证据，不是有限磁场下的平衡相变，而是玻璃态系统中经常观察到的动态（“阻塞”）转变的证据。
The field-cooled magnetization (FCM) processes of Ising spin glasses under relatively small fields are investigated by experiment on Fe 0.55 Mn 0.45 TiO 3 and by numerical simulation on the three-dimensional Edwards–Anderson model. Both results are explained in a unified manner by means of the droplet picture. In particular, the cusp-like behavior of the FCM is interpreted as evidence, not for an equilibrium phase transition under a finite magnetic field, but for a dynamical (`blocking') transition frequently observed in glassy systems.