by Giulia | Nov 11, 2025 | Next Meeting
Resonant inelastic x-ray scattering (RIXS) allows to study electronic and magnetic excitations and their momentum and energy dependencies. For example, the absence of dd excitations at the interfaces of KTaO3 films suggests a deficiency of localized Ta 5d electrons...
by Dmitry | Oct 3, 2025 | Past meetings
Understanding and controlling strongly correlated many-body spin systems is one of the key challenges in modern condensed matter physics. Among the most promising experimental platforms for these explorations are semiconducting moiré materials (SMMs), which consist of...
by Dmitry | Sep 23, 2025 | Past meetings
In the Bardeen– Cooper–Schrieffer (BCS) theory, Cooper pairs are formed with zero total momentum, preserving both time and inversion symmetries. A finite momentum Cooper pairing can be induced by the Zeeman effect of magnetic fields, forming the...
by Louk Rademaker | May 15, 2025 | Past meetings
When the period of an incommensurate charge density wave (ICDW) approaches a multiple of a lattice vector, the energy gain from locking the period can drive a transition into an intermediate near-commensurate (NC) state made of locally commensurate regions separated...
by Louk Rademaker | Apr 25, 2025 | Past meetings
In quantum materials, electronic responses to electric and magnetic fields can manifest the quantum geometry of electronic wavefunctions. These geometrical properties are encoded in the Berry curvature, quantum metric, and quantum geometric connection. The Berry...
by Louk Rademaker | Apr 1, 2025 | Past meetings
In this talk, I will briefly review the physics of two-dimensional vortex lattices in thin superconducting films. By exploring the interplay between magnetic field, thermal fluctuations and disorder, I will provide a short overview of the different glassy phases which...
by Louk Rademaker | Mar 19, 2025 | Past meetings
Fractional Chern insulators (FCIs) are the lattice equivalent of the fractional quantum Hall effect, whereby the intrinsic properties of the lattice provide the necessary ingredients for the emergence of this strongly correlated phase. Their existence was first...
by Louk Rademaker | Jan 24, 2025 | Past meetings
We are a few years into the “nickel age of superconductivity” now. In this presentation I will review what we know so far and what open questions remain to be answered. I will cover both square-planar nickelates and octahedral nickelates and compare to what we have...
by Louk Rademaker | Jan 24, 2025 | Past meetings
Strain engineering is an effective approach to tune the electronic properties of materials by applying mechanical deformation to their lattice. Conventional straining methods for 3D materials, such as epitaxial growth on substrates with lattice mismatch, dielectric...
by Louk Rademaker | Oct 28, 2024 | Past meetings
Over the last 20 years, a lot of progress has been made in the realisation of 2D arrangements of magnetic islands. The moment of each island must point along a local axis, and the system can be described by interacting Ising spins. If the magnetic moments are parallel...
