by Louk Rademaker | Sep 10, 2024 | Future meetings
Abstract tbd. Location: Stuckelberg, Ecole de PhysiqueTime: Tuesday 29 October 2024, 12:30 for pizza, 13:00 start discussion
by Louk Rademaker | Sep 10, 2024 | Next Meeting
The translational symmetry of the ionic potential in a crystal results in a periodic electronic structure in momentum space. Analogously, the periodic electric field of an intense light pulse can create replica of electronic states. These so-called Floquet state are...
by Louk Rademaker | Mar 8, 2024 | Past meetings
I will illustrate the paradigm of computational materials discovery, as applied to the case of two-dimensional and one-dimensional materials.First, a high-throughput study of experimentally-known inorganic compounds identifies promising candidates that could be...
by Louk Rademaker | Mar 8, 2024 | Past meetings
The bandstructure of naturally occurring Bernal bilayer graphene exhibits four linearly dispersed Dirac cones [1] but changes drastically when large electric displacement fields are applied across the two layers. Here, tunable van Hove singularities lead to the...
by Louk Rademaker | Mar 8, 2024 | Past meetings
Complex polarisation textures and emergent functionalities under geometric confinement Ferroelectric materials can host a wide range of unusual structural features, often linked to novel functional properties, potentially useful for nanoelectronics applications. At...
by Louk Rademaker | Feb 28, 2024 | Past meetings
You can download the slides here (PDF). Please register at the doodle before Thursday evening if you want to join for pizza! Location: Stuckelberg, Ecole de PhysiqueTime: Friday 19 April 2024, 12:10 for pizza, 12:30 start discussion
by Louk Rademaker | Feb 20, 2024 | Past meetings
In the context of “flat superconductors”, the Berezinskii-Kosterlitz-Thouless (BKT) theory is naturally involved in the discussion, even if only indirectly. BKT physics is in fact necessary to allow for the (quasi-)long-range-order, otherwise prohibited by...
by Louk Rademaker | Feb 20, 2024 | Past meetings
In sufficiently high magnetic fields, continuous electron bands are transformed into quantized Landau levels (LLs). Although the huge density and degeneracy of states inside the LLs seems at first glance to favor the interactions effects, the famous Kohn theorem [1]...
by Louk Rademaker | Sep 18, 2023 | Past meetings
The Hat tiling, discovered in March this year, is the culmination of decades of mathematical research in aperiodic tilings. Unlike other quasicrystals, such as the Penrose tiling, it requires only a single type of tile to be assembled, the hat tile. In this talk I...
by Louk Rademaker | Sep 18, 2023 | Past meetings
Flat bands in twisted graphene systems offers plethora of strongly correlated states, among these, correlated insulator, superconductor and chern insulator are to name of few. Twisted trilayer graphene has shown robust superconductivity which drastically deviates from...
