中文
相关论文

相关论文: What Makes a Good Descriptor for Heterogeneous Ice…

200 篇论文

The basic physics of nucleation in solid \hl{single-crystal} nanoparticles is revealed by a phase-field theory that includes surface energy, chemical reactions and coherency strain. In contrast to binary fluids, which form arbitrary contact…

材料科学 · 物理学 2014-09-17 Daniel A. Cogswell , Martin Z. Bazant

Crystallization of supersaturated liquids usually starts by heterogeneous nucleation. Mounting evidence shows that even homogeneous nucleation in simple liquids takes place in two steps; first a dense amorphous precursor forms, and the…

Collisions of ice particles play an important role in the formation of planetesimals and comets. In recent work we showed, that CO$_2$ ice behaves like silicates in collisions. The resulting assumption was that it should therefore stick…

地球与行星天体物理 · 物理学 2016-08-24 Grzegorz Musiolik , Jens Teiser , Tim Jankowski , Gerhard Wurm

Despite the simplicity of the water molecule, the kinetics of ice nucleation under natural conditions can be complex. We investigated spontaneously grown ice nuclei using all-atom molecular dynamics simulations and found significant…

软凝聚态物质 · 物理学 2025-04-28 Maodong Li , Yupeng Huang , Yijie Xia , Dechin Chen , Cheng Fan , Lijiang Yang , Yi Qin Gao , Yi Isaac Yang

Surface freezing is a phenomenon in which crystallization is enhanced at a vapor-liquid interface. In some systems, such as $n$-alkanes, this enhancement is dramatic, and results in the formation of a crystalline layer at the free interface…

软凝聚态物质 · 物理学 2017-09-13 Amir Haji Akbari , Pablo G. Debenedetti

We present a partial free energy profile for the homogeneous nucleation of ice using an all-atom model of water at low supercooling, at which ice growth dynamics are reasonably accessible to simulation. We demonstrate that the free energy…

化学物理 · 物理学 2013-09-06 Aleks Reinhardt , Jonathan P. K. Doye

On the surface of icy dust grains in the dense regions of the interstellar medium a rich chemistry can take place. Due to the low temperature, reactions that proceed via a barrier can only take place through tunneling. The reaction H +…

星系天体物理 · 物理学 2017-08-31 Thanja Lamberts , Johannes Kästner

To comprehend the complexities of the ice-water interface, we perform a study that attempts to correlate the altered dynamics of water to its perturbed structure at, and due to, the interface. The deviation from bulk values of structural…

软凝聚态物质 · 物理学 2019-08-02 Saumyak Mukherjee , Sayantan Mondal , Biman Bagchi

\textit{Ab initio} random structure searching based on density functional theory is used to determine the ground-state structures of ice at high pressures. Including estimates of lattice zero-point energies, ice is found to adopt three…

其他凝聚态物理 · 物理学 2013-05-29 Jeffrey M. McMahon

A disordered quasi-liquid layer of water is thought to cover the ice surface, but many issues, such as its onset temperature, its thickness, or its actual relation to bulk liquid water have been a matter of unsettled controversy for more…

软凝聚态物质 · 物理学 2026-01-22 Luis G. MacDowell

Machine learning models are rapidly becoming widely used to simulate complex physicochemical phenomena with ab initio accuracy. Here, we use one such model as well as direct density functional theory (DFT) calculations to investigate the…

Experiments on the hydrogenation of CO on crystalline and amorphous ice at 15 K were carried out to investigate the structural effects of the ice surface. The effective rate of H atom addition to CO on the amorphous ice was found to be…

天体物理学 · 物理学 2008-05-23 H. Hidaka , N. Miyauchi , A. Kouchi , N. Watanabe

Thermodynamic properties of liquid water as well as hexagonal (Ih) and cubic (Ic) ice are predicted based on density functional theory at the hybrid-functional level, rigorously taking into account quantum nuclear motion, anharmonic…

材料科学 · 物理学 2025-10-06 Bingqing Cheng , Edgar A. Engel , Jörg Behler , Christoph Dellago , Michele Ceriotti

UV irradiation of simple ices is proposed to efficiently produce complex organic species during star- and planet-formation. Through a series of laboratory experiments, we investigate the effects of the H2O concentration, the dominant ice…

星系天体物理 · 物理学 2015-05-19 Karin I. Oberg , Ewine F. van Dishoeck , Harold Linnartz , Stefan Andersson

Cloud droplets containing ice-nucleating particles (INPs) may freeze at temperatures above the homogeneous freezing threshold temperature. This process, referred to as immersion freezing, is one of the modulators of aerosol-cloud…

Based on neutron wide-angle diffraction and small-angle neutron scattering experiments, we show that there is a correlation between the preparational conditions of amorphous ice structures, their microscopic structural properties, the…

无序系统与神经网络 · 物理学 2007-05-23 Michael Marek Koza , Thomas Hansen , Roland P. May , Helmut Schober

The process of homogeneous crystal nucleation has been considered in a model liquid, where the interparticle interaction is described by a short-range spherical oscillatory potential. Mechanisms of initiating structural ordering in the…

材料科学 · 物理学 2018-12-18 Bulat N. Galimzyanov , Dinar T. Yarullin , Anatolii V. Mokshin

Recent first-principle calculations unveiled a distinctive dynamic behavior in water molecule rotation during the melting process of highly confined water, indicating a notable time-scale separation in diffusion. In this short paper, we…

化学物理 · 物理学 2024-03-27 Yuheng Zhao , Yi Qin Gao

In principle, the answer to the posed titular question is undoubtedly 'yes.' But in practice, requisite reference data for homogeneous systems have been obtained with a treatment of intermolecular interactions that is different from that…

统计力学 · 物理学 2022-05-02 Dominic Atherton , Angelos Michaelides , Stephen J. Cox

Context. In the cooling process of a non-accreting neutron star, the composition and properties of the crust are thought to be fixed at the finite temperature where nuclear reactions fall out of equilibrium. A lower estimation for this…

高能天体物理现象 · 物理学 2020-03-11 T. Carreau , F. Gulminelli , N. Chamel , A. F. Fantina , J. M. Pearson