Atoms have the habit of jumping through solids - a practice that physicists have recently been able to follow for the first time using a brand new method. This scientific advance was made possible thanks to the utilisation of cutting-edge X-ray sources, known as electron synchrotrons.
The detailed findings of the project, backed by the Austrian Science Fund FWF, were recently published in the prestigious journal NATURE MATERIALS. The work unlocks new potential for the study of material ageing processes at the atomic level.Now and then, things can get pretty "wild" in solids. For example, billions of atoms in a gold ring can shift position every second. However, it is not just ordinary people who cannot see the atoms jumping around - physicists too have long been unable to witness this process for themselves. However, there is one very good reason in particular why scientists should want to change all that. The restlessness of atoms is responsible for ageing, and therefore the loss of specific material properties.
Ramona Seba | University of Vienna
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The building blocks of matter in our universe were formed in the first 10 microseconds of its existence, according to the currently accepted scientific picture. After the Big Bang about 13.7 billion years ago, matter consisted mainly of quarks and gluons, two types of elementary particles whose interactions are governed by quantum chromodynamics (QCD), the theory of strong interaction. In the early universe, these particles moved (nearly) freely in a quark-gluon plasma.
This is a joint press release of University Muenster and Heidelberg as well as the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt.
Then, in a phase transition, they combined and formed hadrons, among them the building blocks of atomic nuclei, protons and neutrons. In the current issue of...
Thin-film solar cells made of crystalline silicon are inexpensive and achieve efficiencies of a good 14 percent. However, they could do even better if their shiny surfaces reflected less light. A team led by Prof. Christiane Becker from the Helmholtz-Zentrum Berlin (HZB) has now patented a sophisticated new solution to this problem.
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A study in the journal Bulletin of Marine Science describes a new, blood-red species of octocoral found in Panama. The species in the genus Thesea was discovered in the threatened low-light reef environment on Hannibal Bank, 60 kilometers off mainland Pacific Panama, by researchers at the Smithsonian Tropical Research Institute in Panama (STRI) and the Centro de Investigación en Ciencias del Mar y Limnología (CIMAR) at the University of Costa Rica.
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