of the National Center of Competence in Research on
Materials with Novel Electronic Properties / NCCR MaNEP

Nr. 27 / November 2012 >>> Download this e-Newsletter in PDF

Coherent dynamics in a highly excited Mott insulator

Intrinsic origin of conductivity at LaAlO3/SrTiO3 interfaces

Electron Waiting Times in Mesoscopic Conductors

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Prof. Dirk van der MarelBy Prof. Dirk van der Marel

The summer of 2012 has been a very active and rewarding period. MaNEP was implicated in public events, great scientific publications and many conferences such as EMRS, M2S, LEES. By the way, the next M2S conference in 2015, will take place in Switzerland, under chairmanship of  Øystein Fischer.

A large number of high quality scientific papers of MaNEP members reported on new exciting scientific results. Spin–orbital separation was observed  in the quasi-one-dimensional Mott insulator Sr2CuO3, the intrinsic origin of conductivity at LAO/STO interfaces was established, coherent dynamics in a highly excited mott insulator was observed. Many more discoveries in a wide variety of materials ranging from graphene, through nanostructured EuTiO3 and tungsten-oxide films to potassium zinc borohydrides, were reported in about 40 publications in various different journals.

In July, the 9th edition of the Nuit de la Science in Geneva was as usual a great success. Thanks to the numerous DPMC and MaNEP members, who worked hard to prepare and produce this enjoyable bi-annual outreach event.

On September 1st, two professors began joint appointments at the University of Geneva and the Paul Scherrer Institute: Welcome to Felix Baumberger (80% UNIGE/20% PSI) and Christan Ruegg (20% UNIGE/80% PSI) working in the fields of photo-emission and neutron spectroscopy respectively.

The physiscope continued its ascent this summer by hosting the team of astronauts of the last Endeavour space shuttle mission. On September 12, the Martin Peter Colloquium was held at the University of Geneva, combined with a well-attended day of animated discussions and presentations. The highlight of the day was a fascinating Martin Peter colloquium by Frank Steglich on the interplay of quantum criticality, f-electron localization and superconductivity in heavy fermions.

The worldwide scientific impact of the MaNEP community vaunted several scientific distinctions of its members. Congratulations to Alexey Kuzmenko with the Genzel prize 2012, to Nicola Spaldin with the Max Roessler Prize, to Manfred Fiebig for his APS Fellowhood, to Edvinas Navickas with the EMRS Young Scientist Award 2012 and to Marilena Longobardi with a Tremplin scholarship.

Last but not least, my warm congratulations to Øystein Fischer with the Kamerlingh Onnes Prize jointly with H. A.Mook and T. M. Klapwijk, for their long-term outstanding and pioneering contributions to the experimental superconductivity research. The prize honors Øystein Fischer's leadership in magnetic superconductors and pioneering STM studies in the cuprate high-Tc materials.

Exhibition at the Musée d'Histoire Naturelle of Neuchâtel

Following its success in Geneva, the exhibition SUPRA100 became itinerant and will be on show at the Musée d'Histoire Naturelle of Neuchâtel from January 20 to May 20, 2013. In 2011, to celebrate the 100th anniversary of the discovery of superconductivity, MaNEP and the University of Geneva organised, in collaboration with the artist Etienne Krähenbühl, this itinerant exhibition entitled 'SUPRA100' combining both art and science.

Events around superconductivity - such as a conference, shows and guided tours - will be proposed to the public. The programme of these events will soon be available on www.manep-nccr.ch. At the museum visitors will also be able to discover a serie of artworks known as having «shape memory» created by the artist Etienne Krähenbühl. Several of his sculptures will be presented from January 10 to February 16, 2013 at the Galerie C, a contemporary art space in Neuchâtel.