About EPJ

The European Physical Journal (EPJ) is a series of peer-reviewed journals covering the whole spectrum of physics and related interdisciplinary subjects. EPJ is committed to high scientific quality in publishing and is indexed in all main citation databases.

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Latest news

EPJ D Highlight - Inside an ion-molecule collision

An author’s conception of the collision of incoming positively charged ion beam into a furan molecule.

Physicists elucidate reactions underlying positive ion beams hitting molecular targets relevant in proton therapy

Ion-molecule reactions are ubiquitous. They are important in the emergence of primordial life as solar wind falls onto chemicals turning them into the prebiotic building blocks of life. Ion-molecule reactions are also the basic process underlying the proton-biomolecule collisions relevant in proton therapies in cancer. To better understand these mechanisms, a new study provides novel data on low-energy proton collisions with furan and its derivative molecules, which are models for the deoxyribose sugar unit found in biological processes. These findings have been published in EPJ D by Tomasz Wasowicz from Gdansk University of Technology, Poland, and colleagues, as part of the topical issue “Low-Energy Interactions related to Atmospheric and Extreme Conditions.”

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EPJ B Highlight - New method helps stabilise materials with elusive magnetism

Visualisation of itinerant ferromagnetic domains.

Stabilising materials with transient magnetic characteristics makes it easier to study them

Magnetic materials displaying what is referred to as itinerant ferromagnetism are in an elusive physical state that is not yet fully understood. They behave like a magnets under very specific conditions, such as at ultracold temperatures near absolute zero. Physicists normally have no other choice than to study this very unique state of matter in a controlled fashion, using ultracold atomic gases. Now, a team based at ETH Zurich, Switzerland has introduced two new theoretical approaches to stabilise the ferromagnetic state in quantum gases to help study the characteristics of itinerant ferromagnetic materials. These results were recently published in EPJ B by Ilia Zintchenko and colleagues.

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EPJ E Review - Watching crystals grow

Ice nucleus forming in supercooled liquid water
© Philipp Geiger

Crystallization, a typical self-organization process during which a disordered state spontaneously transforms into an ordered one, a crystal, usually proceeds by nucleation and growth. In the initial stages of the transformation, a localized nucleus of the new phase forms due to a random fluctuation. Most of these small nuclei disappear after a short time, but in some rare cases a crystalline embryo may reach a critical size, after which further growth becomes thermodynamically favorable and the entire system is converted into the new phase.

In this EPJ E review paper, Jungblut and Dellago discuss several theoretical concepts and computational methods to better understand crystallization. More specifically, they address the rare event problem arising in the simulation of nucleation processes, and explain how to calculate nucleation rates accurately. Particular emphasis is placed on discussing statistical tools to analyze crystallization trajectories and identify the transition mechanism.

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Conference announcements

No forthcoming conference for this journal.

FUSION17

Hobart, Tasmania, 20–24 February 2017