Third and fifth harmonic responses in viscous liquids
Third and fifth harmonic responses in viscous liquids
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粘性液体中的三次和五次谐波响应
DOI：
10.1088/1742-5468/ab371e
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
F. Ladieu
中科院分区：
文献类型：
--
作者：
Samuel Albert;M. Michl;P. Lunkenheimer;A. Loidl;P. D'ejardin;F. Ladieu
我们回顾了关于玻璃中三次和五次谐极化率的工作，即和。我们解释了为什么这些非线性响应特别适合于测试在冷却时是否形成一些无定形关联。我们发现，和的实验频率和温度依赖关系具有反常特征，因为它们的行为与理想偶极气体的行为本质上不同，理想偶极气体是流体的高温极限。大多数工作将这种反常行为解释为反映了无定形有序磁区在冷却时的增长，正如Bouchaud和Bieroi(BB)的一般框架所预测的那样。我们解释了为什么大多数--如果不是全部--具有挑战性的解释可以用与BB一致的方式重塑。最后，对和的反常特征进行了比较，结果表明无序磁畴是致密的，即分维df 接近空间的维d。这表明分子液体的玻璃化转变对应于一类新的普适的临界现象。
We review the works devoted to third and fifth harmonic susceptibilities in glasses, namely and . We explain why these nonlinear responses are especially well adapted to test whether or not some amorphous correlations develop upon cooling. We show that the experimental frequency and temperature dependences of and of have anomalous features, since their behavior is qualitatively different to that of an ideal dipolar gas, which is the high temperature limit of a fluid. Most of the works have interpreted this anomalous behavior as reflecting the growth, upon cooling, of amorphously ordered domains, as predicted by the general framework of Bouchaud and Biroli (BB). We explain why most—if not all—of the challenging interpretations can be recast in a way which is consistent with that of BB. Finally, the comparison of the anomalous features of and of shows that the amorphously ordered domains are compact, i.e. the fractal dimension df is close to the dimension d of space. This suggests that the glass transition of molecular liquids corresponds to a new universality class of critical phenomena.
影响因子：
4.4
作者：
Sillren, P.;Matic, A.;Boehmer, R.
通讯作者：
Boehmer, R.