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Enhanced Grüneisen Parameter in Supercooled Water
We use the recently-proposed compressible cell Ising-like model to estimate the ratio between thermal expansivity and specific heat (the Grüneisen parameter Γ(s)) in supercooled water. Near the critical pressure and temperature, Γ(s) becomes significantly sensitive to thermal fluctuations of the ord...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6700159/ https://www.ncbi.nlm.nih.gov/pubmed/31427698 http://dx.doi.org/10.1038/s41598-019-48353-4 |
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author | O. Gomes, Gabriel Stanley, H. Eugene Souza, Mariano de |
author_facet | O. Gomes, Gabriel Stanley, H. Eugene Souza, Mariano de |
author_sort | O. Gomes, Gabriel |
collection | PubMed |
description | We use the recently-proposed compressible cell Ising-like model to estimate the ratio between thermal expansivity and specific heat (the Grüneisen parameter Γ(s)) in supercooled water. Near the critical pressure and temperature, Γ(s) becomes significantly sensitive to thermal fluctuations of the order-parameter, a characteristic behavior of pressure-induced critical points. Such enhancement of Γ(s) indicates that two energy scales are governing the system, namely the coexistence of high- and low-density liquids, which become indistinguishable at the critical point in the supercooled phase. The temperature dependence of the compressibility, sound velocity and pseudo-Grüneisen parameter Γ(w) are also reported. Our findings support the proposed liquid-liquid critical point in supercooled water in the No-Man’s Land regime, and indicates possible applications of this model to other systems. In particular, an application of the model to the qualitative behavior of the Ising-like nematic phase in Fe-based superconductors is also presented. |
format | Online Article Text |
id | pubmed-6700159 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-67001592019-08-21 Enhanced Grüneisen Parameter in Supercooled Water O. Gomes, Gabriel Stanley, H. Eugene Souza, Mariano de Sci Rep Article We use the recently-proposed compressible cell Ising-like model to estimate the ratio between thermal expansivity and specific heat (the Grüneisen parameter Γ(s)) in supercooled water. Near the critical pressure and temperature, Γ(s) becomes significantly sensitive to thermal fluctuations of the order-parameter, a characteristic behavior of pressure-induced critical points. Such enhancement of Γ(s) indicates that two energy scales are governing the system, namely the coexistence of high- and low-density liquids, which become indistinguishable at the critical point in the supercooled phase. The temperature dependence of the compressibility, sound velocity and pseudo-Grüneisen parameter Γ(w) are also reported. Our findings support the proposed liquid-liquid critical point in supercooled water in the No-Man’s Land regime, and indicates possible applications of this model to other systems. In particular, an application of the model to the qualitative behavior of the Ising-like nematic phase in Fe-based superconductors is also presented. Nature Publishing Group UK 2019-08-19 /pmc/articles/PMC6700159/ /pubmed/31427698 http://dx.doi.org/10.1038/s41598-019-48353-4 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article O. Gomes, Gabriel Stanley, H. Eugene Souza, Mariano de Enhanced Grüneisen Parameter in Supercooled Water |
title | Enhanced Grüneisen Parameter in Supercooled Water |
title_full | Enhanced Grüneisen Parameter in Supercooled Water |
title_fullStr | Enhanced Grüneisen Parameter in Supercooled Water |
title_full_unstemmed | Enhanced Grüneisen Parameter in Supercooled Water |
title_short | Enhanced Grüneisen Parameter in Supercooled Water |
title_sort | enhanced grüneisen parameter in supercooled water |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6700159/ https://www.ncbi.nlm.nih.gov/pubmed/31427698 http://dx.doi.org/10.1038/s41598-019-48353-4 |
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