Job opening

Job opening

May 2018 – We have open PhD positions in the field of low temperature scanning probe investigations of correlated electron materials.

PRL – Physics Highlight 2017

PRL – Physics Highlight 2017

December 2017 – Detailed scanning tunneling microsccopy and spectroscopy and original model calculations reveal the long sought after Caroli-de Gennes-Matricon states in the vortex cores of a high temperature copper oxyde superconductor. Article featured in: Physics News and Commentary ScienceNews Spektrum.de Superconductor Week (by subscription) Le Journal – UNIGE La Recherche (by subscritpion – in…

2D Materials

2D Materials

September 2017 – Scanning tunneling microscopy of in-situ exfoliated VSe2 reveals a non monotonic thickness dependence of the charge density wave (CDW) order parameter and phase transition temperature. Both parameters are extracted directly form the charge modulation amplitude imaged in STM micrographs. This study lifts the contradictions of previous experiments claiming opposite thickness dependencies of…

Physical Review B

Physical Review B

August 2017 – Reduced dimensions can give rise to surprising effects. While a long exposure time photograph of a macroscopic moving object appears blurred, scanning tunneling microscopy images of flipping Si dimer defects embedded in Bi-nanolines on the Si(001) surface appear much sharper than those of static ones. This counter intuitive dynamic sharpening is perfectly…

Physical Review Letters

Physical Review Letters

January 2017 – Combining scanning tunneling microscopy (STM) and density functional theory, we unambiguously identify Cu intercalated on the octahedral site in the van der Waals gap of 1T-CuxTiSe2. STM imaging shows that at low Cu content (x5%) it forms short-range ordered domains which tend to be phase shifted. Tunneling spectroscopy shows a well developed…

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