We first reproduce on the Janus and Janus II computers a milestone experiment that measures the spinglass coherence length through the lowering of free-energy barriers induced by the Zeeman effect. Secondly, we determine the scaling behavior that allows a quantitative analysis of a new experiment reported in the companion Letter [S. Guchhait and R. Orbach, Phys. Rev. Lett. 118, 157203 (2017)]. The value of the coherence length estimated through the analysis of microscopic correlation functions turns out to be quantitatively consistent with its measurement through macroscopic response functions. Further, nonlinear susceptibilities, recently measured in glass-forming liquids, scale as powers of the same microscopic length.
Baity Jesi, M., Calore, E., Cruz, A., Fernandez, L.A., Gil Narvion, J.M., Gordillo Guerrero, A., et al. (2017). Matching Microscopic and Macroscopic Responses in Glasses. PHYSICAL REVIEW LETTERS, 118(15) [10.1103/PhysRevLett.118.157202].
Matching Microscopic and Macroscopic Responses in Glasses
MAIORANO, Andrea;
2017-01-01
Abstract
We first reproduce on the Janus and Janus II computers a milestone experiment that measures the spinglass coherence length through the lowering of free-energy barriers induced by the Zeeman effect. Secondly, we determine the scaling behavior that allows a quantitative analysis of a new experiment reported in the companion Letter [S. Guchhait and R. Orbach, Phys. Rev. Lett. 118, 157203 (2017)]. The value of the coherence length estimated through the analysis of microscopic correlation functions turns out to be quantitatively consistent with its measurement through macroscopic response functions. Further, nonlinear susceptibilities, recently measured in glass-forming liquids, scale as powers of the same microscopic length.File | Dimensione | Formato | |
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https://hdl.handle.net/11365/1126620