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Although atomic diffusion on metal surfaces under high electric fields has been studied theoretically and experimentally since the 1970s, its accurate and quantitative theoretical description remains a significant challenge. In our previous…

Materials Science · Physics 2022-01-11 Ekaterina Baibuz , Andreas Kyritsakis , Ville Jansson , Flyura Djurabekova

We develop here a simple yet versatile model for nuclear fragmentation in heavy ion collisions. The model allows us to calculate thermodynamic properties such as phase transitions as well as the distribution of fragments at disassembly. In…

Nuclear Theory · Physics 2016-09-08 Jicai Pan , Subal Das Gupta

We develop a first principles, microscopic theory of impurity atom scattering from inhomogeneous quantum liquids such as adsorbed films, slabs, or clusters of He-4. The theory is built upon a quantitative, microscopic description of the…

Condensed Matter · Physics 2009-10-31 E. Krotscheck , R. Zillich

Metals exhibit nonequilibrium electron and lattice subsystems at transient times following femtosecond laser excitation. In the past four decades, various optical spectroscopy and time-resolved diffraction methods have been used to study…

Chemical Physics · Physics 2024-05-17 Xing He , Mithun Ghosh , Ding-Shyue Yang

A theoretical analysis using an impact-parameter description of the collisions of deuterons with nuclei is carried out in the high-energy diffraction approximation. It is used to obtain the intensities and integrated cross sections for…

Nuclear Theory · Physics 2020-09-29 V. Franco , R. J. Glauber

Stepped well-ordered semiconductor surfaces are important as nanotemplates for the fabrication of one-dimensional nanostructures which are candidates of intriguing electronic properties. Therefore a detailed understanding of the underlying…

Mesoscale and Nanoscale Physics · Physics 2017-11-08 Carmen P érez León , Holger Drees , Stefan Martin Wippermann , Michael Marz , Regina Hoffmann-Vogel

A theoretical platform is developed for active elastic-wave sensing of (stationary and advancing) fractures along bi-material interfaces in layered composites. Damaged contact surfaces are characterized by a heterogeneous distribution of…

Numerical Analysis · Mathematics 2018-01-17 Fatemeh Pourahmadian , Irene de Teresa

Realistic fluid-solid interaction potentials are essential in description of confined fluids especially in the case of geometric heterogeneous surfaces. Correlated random field is considered as a model of random surface with high geometric…

Statistical Mechanics · Physics 2017-05-24 Aleksey Khlyupin , Timur Aslyamov

A tutorial overview is given on interactions between atoms and surfaces that are mediated by the electromagnetic field. The emphasis is on dispersion (or van der Waals) forces and transitions induced by thermal fluctuations in the near…

Atomic Physics · Physics 2007-05-23 Carsten Henkel

Graphite is the most widely used and among the most widely-studied anode materials for lithium-ion batteries. With increasing demands on lithium batteries to operate at lower temperatures and higher currents, it is crucial to understand…

Materials Science · Physics 2019-01-18 Vikram Pande , Venkatasubramanian Viswanathan

Surface wettability has a huge influence on its functional properties. For example, to minimize smudging, surfaces should be able to repel oil droplets. To quantify surface wettability, the most common approach is to measure the contact…

Soft Condensed Matter · Physics 2020-04-09 Dan Daniel , Yunita Florida , Chee Leng Lay , Xue Qi Koh , Anqi Sng , Nikodem Tomczak

The paper analyzes some experiments on Raman scattering by molecules adsorbed on the face (111) of silver monocrystals performed by A. Campion et al. From the existence of the forbidden line of benzene, the conclusion about existence of the…

Optics · Physics 2015-06-15 A. M. Polubotko

Energetic and geometric aspects of the permeation of low-Z atoms through graphene sheets are investigated. Energy barriers and deformations are calculated via density functional theory for the permeation of H, He, Li and Be atoms at several…

Chemical Physics · Physics 2012-10-02 Stefan E. Huber , Andreas Mauracher , Michael Probst

We present a phase-field approximation of sharp-interface energies defined on partitions, designed for modeling grain boundaries in polycrystals. The independent variable takes values in the orthogonal group $\mathrm{O}(d)$ modulo a lattice…

Functional Analysis · Mathematics 2026-01-13 Sergio Conti , Vito Crismale , Adriana Garroni , Annalisa Malusa

The study explores machine learning methods for revealing chemical sensitivity in Helium spin-echo spectroscopy, in order to obtain ultra-sensitive surface analytic technique. We model bi-species co-adsorbed systems and demonstrate that by…

Chemical Physics · Physics 2020-12-04 Reinis Irmejs , Nadav Avidor

The simulations of field-evaporation processes for silicon atoms on various Si(001) surfaces are implemented using the first-principles calculations based on the real-space finite-difference method. We find that the atoms which locate on…

Condensed Matter · Physics 2009-11-10 Tomoya Ono , Kikuji Hirose

Background: Models describing nuclear fragmentation and fragmentation-fission deliver important input for planning nuclear physics experiments and future radioactive ion beam facilities. These models are usually benchmarked against data…

Nuclear Experiment · Physics 2016-05-11 R. Thies , A. Heinz , T. Adachi , Y. Aksyutina , J. Alcantara-Núñes , S. Altstadt , H. Alvarez-Pol , N. Ashwood , T. Aumann , V. Avdeichikov , M. Barr , S. Beceiro-Novo , D. Bemmerer , J. Benlliure , C. A. Bertulani , K. Boretzky , M. J. G. Borge , G. Burgunder , M. Caamano , C. Caesar , E. Casarejos , W. Catford , J. Cederkäll , S. Chakraborty , M. Chartier , L. V. Chulkov , D. Cortina-Gil , R. Crespo , U. Datta , P. Díaz Fernández , I. Dillmann , Z. Elekes , J. Enders , O. Ershova , A. Estradé , F. Farinon , L. M. Fraile , M. Freer , M. Freudenberger , H. O. U. Fynbo , D. Galaviz , H. Geissel , R. Gernhäuser , K. Göbel , P. Golubev , D. Gonzalez Diaz , J. Hagdahl , T. Heftrich , M. Heil , M. Heine , A. Henriques , M. Holl , G. Ickert , A. Ignatov , B. Jakobsson , H. T. Johansson , B. Jonson , N. Kalantar-Nayestanaki , R. Kanungo , R. Knöbel , T. Kröll , R. Krücken , J. Kurcewicz , N. Kurz , M. Labiche , C. Langer , T. Le Bleis , R. Lemmon , O. Lepyoshkina , S. Lindberg , J. Machado , J. Marganiec , V. Maroussov , M. Mostazo , A. Movsesyan , A. Najafi , T. Nilsson , C. Nociforo , V. Panin , S. Paschalis , A. Perea , M. Petri , S. Pietri , R. Plag , A. Prochazka , A. Rahaman , G. Rastrepina , R. Reifarth , G. Ribeiro , M. V. Ricciardi , C. Rigollet , K. Riisager , M. Röder , D. Rossi , J. Sanchez del Rio , D. Savran , H. Scheit , H. Simon , O. Sorlin , V. Stoica , B. Streicher , J. T. Taylor , O. Tengblad , S. Terashima , Y. Togano , E. Uberseder , J. Van de Walle , P. Velho , V. Volkov , A. Wagner , F. Wamers , H. Weick , M. Weigand , C. Wheldon , G. Wilson , C. Wimmer , J. S. Winfield , P. Woods , D. Yakorev , M. V. Zhukov , A. Zilges , K. Zuber

We present a newly developed approach for the calculation of interfacial stiffness and contact area evolution between two rough bodies exhibiting self affine surface structures. Using spline assisted discretization to define localised…

Soft Condensed Matter · Physics 2021-06-04 Dorian Hanaor , Yixiang Gan , Itai Einav

At low temperatures (10 K), hydrogen atoms can diffuse quickly on grain ice mantles and frequently encounter hydrogen molecules, which cover a notable fraction of grain surface. The desorption energy of H atoms on H2 substrates is much less…

Solar and Stellar Astrophysics · Physics 2021-03-31 Qiang Chang , Xuli Zheng , Xia Zhang , Donghui Quan , Yang Lu , Qingkuan Meng , Xiaohu Li , Long-Fei Chen

We present a theoretical investigation of cold reactive and non-reactive collisions of Li and Rb atoms with C$_{2}^{-}$. The potential energy surfaces for the singlet and triplet states of the Li--C$_{2}^{-}$ and Rb--C$_{2}^{-}$ systems…

Atomic Physics · Physics 2019-04-17 Milaim Kas , Jérôme Loreau , Jacques Liévin , Nathalie Vaeck
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