The Peter Grünberg Institute (PGI) is dedicated to the discovery and interpretation of new phenomena in condensed matter, the development of novel materials and functional structures at the nano- and quantum-scale as well as innovation in experimental and theoretical methods. Our research places emphasis on potential long-term applications in information technology and related fields. A special focus lies on quantum materials, quantum computing and neuromorphic computing.

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First Experimental Demonstration of Antiskyrmions: 3 Questions for Nikolai Kiselev

Tiny magnetic vortex structures in materials, called skyrmions, were first detected experimentally a good 10 years ago. Today, they form a basis for innovative concepts in information processing with better performance and less energy consumption. Jülich scientists, together with colleagues at RWTH Aachen University and the University of Uppsala in Sweden, have now experimentally demonstrated anti-skyrmions for the first time. Jülich theoretical physicist Dr. Nikolai Kiselev, a researcher at the Peter Grünberg Institute and the Institute for Advanced Simulations, is part of the team that succeeded in making this discovery and here explains its significance.

PGI Colloquium: Prof. Dr. Silke Bühler-Paschen, Vienna University of Technology, Vienna, Austria

There has been considerable recent progress in discovering and understanding quantum phases and fluctuations produced by strong correlations. Heavy fermion systems are an ideal platform for systematic studies because low and competing energy scales make them highly tunable. As such the phases (faces) of strong correlations transform continuously into one another, I will discuss some of the most interesting phenomena, ranging from quantum critical points governed by fluctuations beyond a vanishing Landau order parameter to correlation-driven topological phases such as the recently discovered Weyl-Kondo semimetals.

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