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Rosner, Helge
Helge Rosner
Group leader
Phone: +49 351 4646-2233
Fax: +49 351 4646-4902
Room: B1.2.33

Press releases

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Materialien nach Maß

October 16, 2018
Marmor, Stein und Eisen bricht, aber Quantenmaterialien nicht - Exzellenzcluster ct.qmat der Universitäten Dresden und Würzburg [more]
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To the citizens of Dresden

October 11, 2018
On 19th Sept. 2018, there was a racially motivated assault on a foreign PhD student in a tram of DVB. In an open letter, the PhD representatives from six Dresden research institutes clearly position themselves against any violence and oppression towards other people on the basis of their origin or culture. Furthermore, they emphasize the importance of an open and diverse society, especially for Dresden as a research location. [more]
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Electrons go with the flow

October 05, 2018
Hydrodynamic electron flow can only be observed in high-purity quantum materials. An international team of members from the IBM Research Laboratory Zurich, the University of Hamburg and the Max Planck Institute for Chemical Physics of Solids has now found signatures of electron hydrodynamics in the semimetal tungsten diphosphide. The results were published in the journal Nature Communications. [more]
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Winner of the 2017 Pat Goldberg Memorial Best Paper Award

September 24, 2018
We are very pleased to announce that in this year Johannes Gooth’s 2017 paper in Nano Letters on “Ballistic One-Dimensional InAs Nanowire Cross-Junction Interconnects” was selected by the committee. [more]
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CAT2018 Best Poster Prize

September 20, 2018
Dr. Iryna Antonyshyn was awarded with the Best Poster Prize at the 2nd Global Conference on Catalysis, Chemical Engineering and Technology (Rome, September 13-16, 2018). [more]
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Topological semimetals for potential energy conversion application

September 14, 2018
In a recent study, scientists from the Max Planck Institute for Chemical Physics of Solids in Dresden have performed a comprehensive study of thermoelectric and thermomagnetic properties of polycrystalline Weyl semimetal NbP. [more]
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Max-Planck-Tag am 14. September im Neuen Rathaus Dresden

September 12, 2018
Die drei Dresdner Max-Planck-Institute – das MPI für die Chemische Physik fester Stoffe, das MPI für die Physik komplexer Systeme und das MPI für molekulare Zellbiologie und Genetik – organisieren eine gemeinsame Veranstaltung zum bundesweiten „Max-Planck-Tag“ in der Dresdner Innenstadt, genauer gesagt im Plenarsaal des Rathauses, um die Arbeit speziell ihrer Institute den Dresdnern und ihren Gästen zu präsentieren. [more]
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Welcome to the MPI CPfS:
Johannes Gooth, Max Planck Research Group Leader

August 31, 2018
The Max Planck Institute for Chemical Physics of Solids welcomes the physicist Dr. Johannes Gooth, who will build and manage his Max Planck Research Group from the beginning of October. [more]
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GdPtBi, the drosophila for Weyl

August 30, 2018
Magneto-transport experiments of GdPtBi show anomalous Hall effect, chiral anomaly effect and non-zero Berry phase which establish the properties of Weyl physics. All these properties are independent of crystallographic directions. This study confirm that magnetism plays a major role in creating Weyl Fermions via exchange splitting of bands in GdPtBi. [more]
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From single-ion Kondo effect to Kondo lattice formation

August 20, 2018
Scanning tunneling spectroscopy data on the archetypical heavy fermion metal YbRh2Si2 establish a hierarchy of energy scales, with the dominance of the lattice Kondo effect requiring temperatures well (about an order of magnitude) below the single-ion Kondo temperature of about 25 K. Only if the lattice Kondo correlations are sufficiently established, quantum critical fluctuations can evolve. [more]
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Heusler, Weyl and Berry

August 20, 2018
Scientists at the Max Planck Institute Chemical Physics of Solids have written a review paper about magnetic topological materials in the family of Heusler compounds. The review explains the connection between topology, symmetry and magnetism at a level suitable for undergraduate students in physics, chemistry and materials science with a basic knowledge of condensed matter physics.   [more]
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Humboldt fellowship for Kathryn Arpino

August 16, 2018
The Alexander von Humboldt foundation has selected Kathryn Arpino for a Humboldt Research Fellowship for postdoctoral researchers. [more]
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The marriage of topology and magnetism in a Weyl system

July 31, 2018
Topology is a global aspect of materials, leading to fundamental new properties for compounds with large relativistic effects. The incorporation of heavy elements give rise to non-trivial topological phases of matter, such as topological insulators, Dirac and Weyl semimetals. The semimetals are characterized by band-touching points with linear dispersion, similar to massless relativistic particles in high energy physics. [more]
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ICM 2018 Best Poster Award Recipients

July 25, 2018
Congratulations to Dr. Eteri Svanidze, Dr. Andrea Amorese, and Maja Bachmann [more]
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ECT2018 Poster Award

July 25, 2018
Congratulations to Felix Kaiser who received one of three “ECT2018 Poster Awards” during the recent “International and European Conference on Thermoelectrics” in Caen/France. [more]
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The Quantum Sound of Metals

July 16, 2018
The Yearbook 2018 of the Max Planck Society is online. [more]
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Tracking aluminum impurities in the heavy-fermion superconductor UBe13

July 16, 2018
The mechanism behind the observed sample dependency in the heavy-fermion superconductor UBe13 was attributed to the presence of Al impurities in single-crystals. Various diffraction and spectroscopy techniques as well as transmission electron microscopy revealed the location of Al in the structure and its influence on the superconducting properties. Upon long-term annealing, Al atoms can leave the crystal and restore the properties of Al-free UBe13. [more]
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MnSiPt: Local magnetism rules the chemical bond

July 11, 2018
A thorough experimental characterization with a theoretical analysis of the chemical bonding of the intermetallic compound MnSiPt leads to surprising results: the formation of direct Mn–Mn bonds is suppressed because the energy gain due to bond formation is significantly smaller than the on-site magnetic interactions. Therefore, after formation of the covalent bonds between Pt and Si as well as between Mn and Si, the strong Mn intra-atomic exchange is the key factor for the stability of the crystal structure. In competition against the Mn–Mn bond formation, intra-atomic magnetic interactions determine the topology of the local atomic arrangement in the finally adopted TiNiSi-type crystal structure in MnSiPt. [more]
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Visualizing polaron formation in EuB6

June 26, 2018
A combination of scanning tunneling microscopy and locally resolved magnetic stray field measurements unambiguously revealed the polaron formation in the ferromagnetic semimetal EuB6. These polarons are at the heart of the colossal magnetoresistive effects near the ferromagnetic transition in this material. [more]
 
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