News from the Graduate Center

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One of the holy-grail questions in condensed matter physics is how superconductivity — the property of many electrons to go into a quantum soup state that can carry electricity without losses — emerges at relatively high temperatures in certain materials, and how these temperatures could be boosted even further. Now a research team at the University of Oxford and the MPSD is reporting in Physical Review Letters that a dynamical version of superconductivity, which is generated by periodically shaking the material, is intimately tied to strong electronic correlations and geometric frustration. more

The new MPGC-QM Open Call is open ! more

Prestigious Otto Stern Prize awarded by University of Hamburg more

Chiral crystals that have a distinct handedness have recently emerged as one of  the most exciting new classes of topological materials. An international research team from institutions in Germany, Switzerland, United Kingdom, and China has now demonstrated that their crystal handedness directly determines how quasiparticles propagate and scatter at impurities in such materials. The study, published in the journal Nature Communications, represents a significant advance towards novel chiral electronic devices. more

In topological materials, electrons can display behaviour that is fundamentally different from that in ‘conventional’ matter, and the magnitude of many such ‘exotic’ phenomena is directly proportional to an entity known as the Chern number. New experiments establish for the first time that the theoretically predicted maximum Chern number can be reached — and controlled — in a real material. more

Mapping sugar

July 06, 2020

A new technique makes it possible to image the spatial structure of polysaccharides using a scanning tunnelling microscope more

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