by Louk Rademaker | Feb 23, 2023 | Past meetings
A deeper understanding of the differences between quantum and classical dynamics promises great potential for emerging technologies. Nevertheless, some aspects remain poorly understood, particularly concerning the role of quantum coherence in open quantum systems. It...
by Louk Rademaker | Feb 23, 2023 | Past meetings
Atomically thin semiconductors can be stacked on top of each other with limitless possibilities because there is no need for chemical compatibility or lattice match. Combining these materials leads to the emergence of a broad gamut of new physical phenomena. Here, we...
by Louk Rademaker | Feb 23, 2023 | Past meetings
Simplified as it is, the Hubbard model embodies much of the complexity of the `strong correlation problem’ and has established itself as a paradigmatic model in the field. In this talk, I will argue that several key aspects of its physics in two dimensions can now be...
by Louk Rademaker | Feb 23, 2023 | Past meetings
UTe2 is a recently discovered heavy fermion superconductor. In this Flat Club, I will highlight some of the remarkable properties of this material, with a focus on scanning tunneling microscopy experiments. Differential conductance measurements at step edges have...
by Louk Rademaker | Feb 23, 2023 | Past meetings
EuCd2As2 has emerged as a topological material where magnetism may produce strong effects. This compound has been understood as a candidate Weyl semimetal, based mostly on transport and photoemission measurements. I will present our recent results on samples in which...
by Louk Rademaker | Oct 17, 2022 | Last meeting
In oxide heterostructures, different materials are integrated into a single artificial crystal, resulting in a breaking of inversion symmetry across the heterointerfaces. A notable example are interfaces between polar and nonpolar materials, where structural...
by Louk Rademaker | Oct 17, 2022 | Past meetings
Quasicrystals are a fascinating state of matter which is characterized by long-range but nonperiodic order. They display a number of intriguing properties, including unusual localization properties, fractal properties and anomalous critical scalings. Such structures...
by Louk Rademaker | Oct 17, 2022 | Past meetings
One of the major challenges in understanding high-temperature superconductivity in copper oxides, is to disentangle the rich variety of electronic phases that can co-exist, cooperate or compete with d-wave superconductivity. In this context, much theoretical and...
by Louk Rademaker | Oct 17, 2022 | Past meetings
A recent ARPES study on surface doped black phosphorus reported funny non-monotonous k(E) dispersions near the chemical potential [1]. I will discuss this paper and show that dispersive “band-like” features in ARPES do not always imply Bloch states. If time permits, I...
by Louk Rademaker | Oct 17, 2022 | Past meetings
Electrolytes can be used to very effectively transfer the electrostatic potential from a metal electrode (gate) to the surface of a semiconductor, to realize ionically gated devices. Even though the technique is by now long established, its application to 2D materials...
