论文标题
临界自旋玻璃相关长度的实验确定
Experimental Determination of the Critical Spin Glass Correlation Length
论文作者
论文摘要
测量热量磁化（TRM）在单晶cumn（6 $ \％$）自旋玻璃样品上衰减，我们系统地映射了特征时间尺度$ TW_ {eff} $接近$ t_g $的迅速减少。使用$ tw_ {eff} $来确定等待时间期间相关增长的长度比例，$ξ_{trm} $（在数值研究和实验中都观察到），我们观察到$ξ_{trm} $的增长在自旋玻璃相位，然后是非常接近$ t_g $的快速减少。对于所有等待时间，我们以$ξ_{trm} $来解释这种减少，为临界相关长度比例$ξ_{crit} = a（t-t-t_c）^{ - ν} $。
Measuring ThermoRemanent Magnetization (TRM) decays on a single crystal CuMn(6$\%$) spin glass sample, we have systematically mapped the rapid decrease of the characteristic timescale $tw_{eff}$ near $T_g$. Using $tw_{eff}$ to determine the length scale of the growth of correlations during the waiting time, $ξ_{TRM}$, (observed in both numerical studies and experiment), we observe both growth of $ξ_{TRM}$ in the spin glass phase and then a rapid reduction very close to $T_g$. We interpret this reduction in $ξ_{TRM}$, for all waiting times, as being governed by the critical correlation length scale $ξ_{crit}=a(T-T_c)^{-ν}$.
