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Size matters when it comes to atomic properties

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IMAGE: An illustration of potassium atoms undergoing changes in fundamental characteristics such as radius, energy and electronegativity as they are compressed by surrounding neon atoms
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Credit: Neuroncollective, Daniel Spacek, Pavel Travnicek
A study from Chalmers University of Technology, Sweden, has yielded new answers to fundamental questions about the relationship between the size of an atom and its other properties, such as electronegativity and energy. The results pave the way for advances in future material development. For the first time, it is now possible under certain conditions to devise exact equations for such relationships.
Knowledge of the size of atoms and their properties is vital for explaining chemical reactivity, structure and the properties of molecules and materials of all kinds. This is fundamental research that is necessary for us to make important advances, explains Martin Rahm, the main author of the stu ....

United States , Paul Erhart , Roberto Cammi , Martin Rahm , Department Of Chemistry , Journal Of The American Chemical Society , Chalmers University Of Technology , Chemical Engineering At Chalmers University Of Technology , Department Of Physics At Chalmers , University Of Parma , Chalmers University , Chemical Engineering , American Chemical Society , Chemical Science , Chalmers Area , Advance Materials , Rahm Assistant Professor , Atmospheric Chemistry , Chemistry Physics Materials Sciences , Atomic Molecular Particle Physics , Industrial Engineering Chemistry , Superconductors Semiconductors , Atomic Physics , ஒன்றுபட்டது மாநிலங்களில் , பால் எர்ர்த் , மார்டின் ரஹ்ம் ,

Solving complex physics problems at lightning speed

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IMAGE: Physicists have developed a new method that enables emulation of complex calculations at lightning speed. This could yield new insights about the quantum properties of strongly interacting matter such as.
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Credit: Illustration: Andreas Ekström and Yen Strandqvist/Chalmers University of Technology
A calculation so complex that it takes twenty years to complete on a powerful desktop computer can now be done in one hour on a regular laptop. Physicist Andreas Ekström at Chalmers University of Technology, together with international research colleagues, has designed a new method to calculate the properties of atomic nuclei incredibly quickly. ....

United States , Achim Schwenk , Kai Hebeler , Gaute Hagen , Andreas Ekstr , Global Sensitivity Analysis Of Bulk Properties , Michigan State University , Oak Ridge National Laboratory , Department Of Physics At Chalmers , Chalmers University Of Technology , European Research Council , Carolina State University , Darmstadt University Of Technology , Chalmers University , Associate Professor , Dean Lee , North Carolina State University , Darmstadt University , Sensitivity Analysis , Bulk Properties , Physical Review Letters , Chemistry Physics Materials Sciences , Atomic Molecular Particle Physics , Nuclear Physics , Mathematics Statistics , Algorithms Models ,

How short circuits in lithium metal batteries can be prevented

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IMAGE: Short circuits in lithium metal batteries usually result from the lithium depositing unevenly on the anode during the charging process, forming protruding sharp needles known as dendrites. These cause the.
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Credit: Illustration: Yen Strandqvist/Chalmers University of Technology
There are high hopes for the next generation of high energy-density lithium metal batteries, but before they can be used in our vehicles, there are crucial problems to solve. An international research team led by Chalmers University of Technology, Sweden, has now developed concrete guidelines for how the batteries should be charged and operated, maximising efficiency while minimising the risk of short circuits. ....

Sankt Peterburg , Yang Kook Sun , Jialin Wang , Olesyao Kapitanova , Shizhao Xiong , Victora Krivchenko , Xieyu Xu , Jang Yeon Hwang , Yangyang Liu , Hanyang University In Korea , Xian Jiaotong University , Chonnam National University , Moscow Institute Of Physics , Chalmer Department Of Physics , Energy Materials , Department Of Physics , Department Of Physics At Chalmers , Chalmers University Of Technology , Lomonosov Moscow State University , Chalmers University , Advanced Energy Materials , Advanced Science , Professor Aleksandar Matic , Chalmer Department , Chalmers Areas , Critical Role ,