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Because of the negative inclination of the solid-liquid phase separation line in water, ice Ih melts on compression. On further increase in pressure the liquid water transforms into a high density metastable glassy state, characterized by a…

软凝聚态物质 · 物理学 2021-04-22 Saumyak Mukherjee , Biman Bagchi

Classification of glass-forming liquids based on the dramatic change in their properties upon approach to the glassy state is appealing, since this is the most conspicuous and often-studied aspect of the glass transition. Herein, we show…

软凝聚态物质 · 物理学 2009-11-10 R. Casalini , C. M. Roland

We use molecular dynamics computer simulations to investigate a critical temperature T_c for a dynamical glass transition as proposed by the mode-coupling theory (MCT) of dense liquids in a glass forming Ni_{0.8}Zr_{0.2}-system. The…

材料科学 · 物理学 2007-08-09 A. B. Mutiara

Machine learning (ML) methods provide advanced means for understanding inherent patterns within large and complex datasets. Here, we employ the principal component analysis (PCA) and the diffusion map (DM) techniques to evaluate the glass…

软凝聚态物质 · 物理学 2024-07-01 Artem Glova , Mikko Karttunen

Prediction of the glass forming ability (GFA) of alloys remains a major challenge. We are not able to predict the composition dependence of the GFA of even binary alloys. To investigate the effect of each element's propensity to form…

材料科学 · 物理学 2020-11-04 Yuan-Chao Hu , Kai Zhang , Sebastian A. Kube , Jan Schroers , Mark D. Shattuck , Corey S. O'Hern

Using a well defined soft model glass in the framework of Molecular Dynamics simulations, the inherent structures are probed by means of a recently developed deformation protocol that aims to capture the Dynamical Heterogeneities (DH), as…

无序系统与神经网络 · 物理学 2013-02-15 F. Leonforte

Broken-symmetry-induced order parameters account for many phenomena in condensed matter physics. For spin glasses, such a framework dictates its theoretical construction, whereas experiments have only established dynamical behaviors such as…

无序系统与神经网络 · 物理学 2026-05-25 Margarita G. Dronova , Feng Ye , Zachary J. Morgan , Yishu Wang , Yejun Feng

More recently STM experimets present firm evidence of some kind of charge modulation in underdoped cuprates. The peculiar observations of the above experiments are located in the so called pseudo-gap region of the phase diagram, just over…

超导电性 · 物理学 2009-06-08 A. Attanasi

We investigate the characteristic length scales associated with the glass transition phenomenon. By studying an atomic glass-forming liquid in negatively curved space, for which the local order is well identified and the amount of…

统计力学 · 物理学 2010-02-10 François Sausset , Gilles Tarjus

Due to high viscosity, glassy systems evolve slowly to the ordered state. Results of molecular dynamics simulation reveal that the structural ordering in glasses becomes observable over "experimental" (finite) time-scale for the range of…

材料科学 · 物理学 2015-06-24 Anatolii V. Mokshin , Bulat N. Galimzyanov

We obtain the frequency and temperature dependence of the conductivity for (disordered) solids, where the temperature dependence is defined in terms of the related thermodynamic state function in exponential (or power law, etc.) forms. The…

材料科学 · 物理学 2007-10-10 Caglar Tuncay

We develop a real space renormalisation group analysis of disordered models of glasses, in particular of the spin models at the origin of the Random First Order Transition theory. We find three fixed points respectively associated to the…

无序系统与神经网络 · 物理学 2017-07-05 Maria Chiara Angelini , Giulio Biroli

A disordered array of metal grains with large and random intergrain conductances is studied within the one-loop accuracy renormalization group approach. While at low level of disorder the dependence of conductivity on log T is nonuniversal…

介观与纳米尺度物理 · 物理学 2017-09-26 A. R. Akhmerov , A. S. Ioselevich

We investigate the long time dynamics of a strong glass former, SiO2, below the glass transition temperature by averaging single particle trajectories over time windows which comprise roughly 100 particle oscillations. The structure on this…

无序系统与神经网络 · 物理学 2015-06-16 Katharina Vollmayr-Lee , Annette Zippelius

Domain-wall free-energy $\delta F$, entropy $\delta S$, and the correlation function, $C_{\rm temp}$, of $\delta F$ are measured independently in the four-dimensional $\pm J$ Edwards-Anderson (EA) Ising spin glass. The stiffness exponent…

无序系统与神经网络 · 物理学 2009-11-10 M. Sasaki , K. Hukushima , H. Yoshino , H. Takayama

Glass sound velocity shift was observed to be longarithmically temperature dependent in both relaxation and resonance regimes: $\Delta c/c=\mathcal{C}\ln T$. It does not monotonically increase with temperature from $T=0$K, but to reach a…

无序系统与神经网络 · 物理学 2016-08-12 Di Zhou

The relationship between spatially heterogeneous dynamics (SHD) and jamming is studied in a glass-forming binary Lennard-Jones system via molecular dynamics simulations. It has been suggested that the probability distribution of…

无序系统与神经网络 · 物理学 2007-05-23 Naida Lacevic , Sharon C. Glotzer

The crystal growth velocity is one thermodynamic parameter of solidification experiments of undercooled melts under non-equilibrium conditions, which is directly accessible to observation. We applied the electrostatic levitation technique…

材料科学 · 物理学 2020-08-05 Patrick Fopp , Wolfgang Hornfeck , Florian Kargl , Matthias Kolbe , Raphael Kobold

Melting behaviors of defective crystals under extreme conditions are theoretically investigated using the statistical moment method. In our theoretical model, heating processes cause missing atoms or vacancies in crystal structures via…

材料科学 · 物理学 2020-05-15 Tran Dinh Cuong , Anh D. Phan

Room temperature superconductivity under normal conditions has been a major challenge of physics and material science since its very discovery. Here we report the global room-temperature superconductivity observed in cleaved highly oriented…