Journal of Non-Crystalline Solids: X最新文献_第10页

Fragility and the rate of change of the energy landscape topography 能源景观地形的脆弱性与变化率

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100101

Cameran Beg, John Kieffer

{"title":"Fragility and the rate of change of the energy landscape topography","authors":"Cameran Beg, John Kieffer","doi":"10.1016/j.nocx.2022.100101","DOIUrl":"https://doi.org/10.1016/j.nocx.2022.100101","url":null,"abstract":"<div><p>We conduct a comparative analysis of the mechanical response of a moderately fragile sodium borate melt, juxtaposing the adiabatic complex modulus measured at GHz frequencies using Brillouin light scattering and the steady-state shear viscosity measured at zero Hz. The two data sets are perfectly compatible with one another by fitting both components of the high-frequency complex modulus using a modified Maxwell-Wiechert model, transforming the loss modulus to viscosity, and extrapolating to zero frequency. This procedure yields an excellent fit to the steady-state viscosity under the condition that the static and relaxational moduli, as well as the activation energy for viscous dissipation are temperature dependent, as modulated by the logistic function, which accounts for the structural changes in the material as it transitions from liquid to glass. Accordingly, fragility of a glass forming liquid can be regarded as a measure of the rate of change with temperature in the energy landscape topography.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"14 ","pages":"Article 100101"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000218/pdfft?md5=79daacacb24d2afa5fae7f2970f5fcf6&pid=1-s2.0-S2590159122000218-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91707988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Internal nucleation tendency and crystal surface energy obtained from bond energies and crystal lattice data 由键能和晶格数据得到的内部成核倾向和晶体表面能

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100093

C. Tielemann , S. Reinsch , R. Maaß , J. Deubener , R. Müller

引用次数: 4

Deuteron nuclear magnetic resonance and dielectric studies of molecular reorientation and charge transport in succinonitrile-glutaronitrile plastic crystals 丁二腈-戊二腈塑性晶体中分子重取向和电荷传输的Deutron核磁共振和介电研究

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100097

Sofiane Lansab , Philipp Münzner , Herbert Zimmermann , Roland Böhmer

{"title":"Deuteron nuclear magnetic resonance and dielectric studies of molecular reorientation and charge transport in succinonitrile-glutaronitrile plastic crystals","authors":"Sofiane Lansab , Philipp Münzner , Herbert Zimmermann , Roland Böhmer","doi":"10.1016/j.nocx.2022.100097","DOIUrl":"10.1016/j.nocx.2022.100097","url":null,"abstract":"<div><p>Plastic crystals are currently discussed as matrices for highly conducting materials. Among them, mixtures based on succinonitrile (SN) have received particular attention. Long ago, Austen Angell [J. Non-Cryst. Solids 131–133 (1991) 13] has shown that in mixtures with glutaronitrile (GN), the plastic phase of SN can deeply be supercooled. Here, a mixture of 60% SN – featuring deuterated methylene groups – and 40% GN is studied using <sup>2</sup>H nuclear magnetic resonance (NMR), thus allowing selective access to the reorientational dynamics of SN. These dynamics agree with that inferred for partially deuterated SN-GN from dielectric spectroscopy which also reveal that a significant H/D isotope effect is absent. Additionally, in the liquid and slightly below the transition to the plastically crystalline state, mixtures of 60% SN and 40% GN are studied using field-gradient NMR diffusometry as well as rotational viscometry.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"14 ","pages":"Article 100097"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000176/pdfft?md5=5670f4e2a35abc57be433f8c31ade106&pid=1-s2.0-S2590159122000176-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42257363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Anomalous liquids on a new landscape: From water to phase-change materials 新景观上的异常液体：从水到相变材料

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100094

Shuai Wei

{"title":"Anomalous liquids on a new landscape: From water to phase-change materials","authors":"Shuai Wei","doi":"10.1016/j.nocx.2022.100094","DOIUrl":"10.1016/j.nocx.2022.100094","url":null,"abstract":"<div><p>A liquid that is cooled below its melting temperature, referred to as a supercooled liquid, can solidify into an amorphous rigid state (i.e., glass), if cooling is fast enough and crystallization is avoided. The phenomenology of supercooled liquids has been in general established. However, there are pronounced exceptions (e.g., water) which do not fall into the class of ‘normal’ liquids but exhibit a transition behavior in their liquid states. The latest advances connect the unusual aspect of liquids to the properties of phase-change materials (PCMs) that are the basis for non-volatile memory and neuromorphic technologies. In this article, we review the liquid anomalies in the alloys based on group-IV, V, VI elements including technologically important compositions. Their different behaviors are rationalized in terms of liquid–liquid (metal-semiconductor, and fragile-strong) transitions. We discuss their implications for understanding unusual phase switching behaviors in these materials. Lastly, unsolved problems and new opportunities are outlined.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"14 ","pages":"Article 100094"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000140/pdfft?md5=52bc9267add71d942fee1de142c9e2a0&pid=1-s2.0-S2590159122000140-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42867094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The local structure of water from combining diffraction and X-ray spectroscopy 结合衍射和x射线光谱学研究水的局部结构

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100087

Lars G.M. Pettersson , Osamu Takahashi

{"title":"The local structure of water from combining diffraction and X-ray spectroscopy","authors":"Lars G.M. Pettersson , Osamu Takahashi","doi":"10.1016/j.nocx.2022.100087","DOIUrl":"10.1016/j.nocx.2022.100087","url":null,"abstract":"<div><p>We build a large (~3400 structures) library of X-ray absorption (XAS) and X-ray emission (XES) spectra computed at high level, which together with their associated structures form the basis for a Monte Carlo fit to the experimental oxygen‑oxygen pair-distribution, XAS and XES spectra for ambient liquid water. The procedure results in weights giving the relative importance of each structure to reproduce the experimental properties. We show that the information content in the X-ray spectroscopic data is strongly complementary to that of X-ray diffraction, and dependent on specific structures that are still consistent with the diffraction data. We fit simultaneously to the X-ray spectroscopy and diffraction experimental data and obtain weights on each structure that give a structural distribution that is consistent with the three experimental datasets. These weights are applied to structural parameters characterizing the local environment of each structure and result in the emergence of more preferred values of these parameters.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"14 ","pages":"Article 100087"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000073/pdfft?md5=894f6e53f48e6d1bb10f499f0fbf9047&pid=1-s2.0-S2590159122000073-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47188703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Predictions for the properties of water below its homogeneous crystallization temperature revisited 对低于其均匀结晶温度的水的性质的预测

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100090

Frédéric Caupin

引用次数: 0

Austen Angell's legacy in electrolyte research 奥斯汀·安吉尔对电解质研究的贡献

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100088

Kang Xu , Wu Xu , Sheng S. Zhang

引用次数: 2

Lines of invariant physics in the isotropic phase of the discotic Gay-Berne model 盘状Gay-Berne模型各向同性相中的不变物理线

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100085

Saeed Mehri , Mohamed A. Kolmangadi , Jeppe C. Dyre , Trond S. Ingebrigtsen

引用次数: 3

Origin of the anomalous properties in supercooled water based on experimental probing inside “no-man's land” 基于“无人区”内部实验探测的过冷水异常性质成因

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100095

Anders Nilsson

{"title":"Origin of the anomalous properties in supercooled water based on experimental probing inside “no-man's land”","authors":"Anders Nilsson","doi":"10.1016/j.nocx.2022.100095","DOIUrl":"10.1016/j.nocx.2022.100095","url":null,"abstract":"<div><p>Austen Angell conducted pioneering work that opened up the field of supercooled water by observing the temperature dependent divergence of the thermodynamic response functions. Many different scenarios have been proposed as the origin of the anomalous properties and now it has become possible to test the various hypotheses in experimental studies of bulk supercooled water at conditions where ice crystallization becomes extremely rapid. Through the usage of x-ray lasers, ultrafast measurements could be conducted, as the sample is rapidly brought to the extreme conditions on time scales preceding ice formation. In particular the experimental observation of the existence of a liquid-liquid transition at positive pressure, one phase behavior at atmospheric conditions at temperatures down to 228 K, and the existence of maxima in several properties at 230 K indicative of a Widom line, are only consistent with the proposed liquid-liquid critical point model as the origin of the anomalous properties.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"14 ","pages":"Article 100095"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000152/pdfft?md5=78a2876bc54338b562118b36f05edf77&pid=1-s2.0-S2590159122000152-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41386082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

The glass transition of water, insight from phase change materials 水的玻璃化转变，洞察相变材料

Journal of Non-Crystalline Solids: X Pub Date : 2022-06-01 DOI: 10.1016/j.nocx.2022.100084

Pierre Lucas , Julian Pries , Shuai Wei , Matthias Wuttig

引用次数: 8