Vortrag im Rahmen des University of Vienna Physics Colloquiums
Strong correlations enrich the landscape of quantum phases, which is being realized in an increasing number of materials families – from the cuprate high-temperature superconductors and heavy fermion compounds to new platforms for strong correlation physics such as frustrated lattices and moiré heterostructures [1]. I will show why heavy fermion compounds are a particularly versatile platform for systematic studies [2]. After an overview, I will highlight recent results that shed new light on a key overarching phenomenon: the "strange metal" state. These include shot noise experiments [3] and first information on entanglement properties [4]. I will also make connection to the field of strongly correlated topological semimetals [5], and discuss the role that strange metal quantum criticality appears to plays there [6].
[1] J. G. Checkelsky et al., Nat. Rev. Mater., published online, Feb. 20 (2024).
[2] S. Paschen and Q. Si, Nat. Rev. Phys. 3, 9 (2021).
[3] L. Chen et al., Science 382, 907-91 (2023).
[4] F. Mazza et al., arXiv:2403.12779 (2024).
[5] D. M. Kirschbaum et al., J. Phys. Mater. 7, 012003 (2024).
[6] D. M. Kirschbaum et al., in preparation (2024).
A light lunch buffet will be offered before the lecture at around 13:00.
