论文标题
旋转眼镜中温度混乱的证据
Evidence for Temperature Chaos in Spin Glasses
论文作者
论文摘要
我们研究了在温度扰动下的场旋转玻璃的磁化。将$ t $ cycling曲线与参考曲线进行比较，而无需温度循环。随着温度变化的增加，从累积衰老区域到非累积衰老区域的交叉发生。累积的老化范围缩放与混乱长度$ \ ell_ \ mathrm {c} $，在交叉边界处与相关长度（$ξ$）相提并论。提取的混乱指数$ζ= 1.1 $与理论预测一致。我们的结果强烈表明温度混乱存在于真正的自旋玻璃系统中。
We study the field cooled magnetization of a CuMn spin glass under temperature perturbations. The $T$-cycling curves are compared with the reference curve without temperature cycling. There is a crossover from the cumulative aging region to noncumulative aging region as the temperature change is increased. The cumulative aging range scales with the chaos length $\ell_\mathrm{c}$, becoming comparable to the correlation length, $ξ$, at the crossover boundary. The extracted chaos exponent, $ζ= 1.1$, is in agreement with theoretical predictions. Our results strongly suggest temperature chaos exists in real spin glasses system.
