Max-Planck-Institute for Structure and Dynamics of Matter

Abstract：

Quantum materials offer novel response functions, both conceptually interesting as well as of practicality in electronics. The unifying theme of this fuzzy materials group is that quantum mechanics manifests itself in unusual ways, going beyond band structures that define copper and silicon. They inherit their rich physics from peculiar arrangements of atomic orbitals, as found in complex compounds combining many elements. Key to quantum mechanics, as any wave mechanics, is the fundamental importance of the boundary condition as for example in the well-known particle-in-a-box states. Hence naturally the response functions of many quantum materials depend on and can be tuned by their 3D shape. The main scientific mission of our department of microstructured quantum matter is to establish the shape-property relations of quantum materials. Shape effects can be expected only at relevant length scales of the physics at hand, such as coherence lengths, penetration depths, mean-free-paths, Fermi wavelength, etc. and hence appear on the mesoscale. To that end, we pioneer Focused Ion Beam (FIB) based methods to shape as-grown single crystals on the micro- to nano-meter scale. I will review current research thrusts in our department, with an emphasis on Kagome superconductors, chiral edge state design in 3D semi-metals and superconducting vortex functionality.

[1] C. Guo et al., Nature 611, 461-466 (2022)

[2] C. Guo et al., Nat. Phys. 20, 579 (2024)

Brief CV of Prof. Philip J. W. Moll：

Prof. Philip J. W. Moll is a Scientific Member and Director at the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg, Germany, and a Professor at the University of Hamburg. He obtained his PhD in Physics from ETH Zurich in 2012. Following postdoctoral research at ETH Zurich (2013–2014) and UC Berkeley (2014–2015), he led an independent Max Planck Research Group on Microstructured Quantum Matter at the MPI for Chemical Physics of Solids in Dresden (2015–2019). From 2018 to 2022, he was a Tenure-Track Assistant Professor at EPFL Lausanne, heading the Laboratory for Quantum Materials.

His research focuses on the design and exploration of quantum materials using mesoscale device fabrication techniques. He is the recipient of several prestigious awards and fellowships, including the Fellowship of the American Physical Society (2025), the World Economic Forum Young Scientist (2020), the Nicholas Kurti Science Prize (2018), and the ABB Prize of the Swiss Physical Society (2014). He was awarded major European grants, including the ERC Starting Grant (2017), the ERC Consolidator Grant (2023), and the Swiss National Science Foundation Professorial Fellowship (2018).

报告地点：M楼236会议室

腾讯会议ID：975 836 461

会议密码：0725

主持人：Prof. Ziqiang Wang (汪自强)

联系人：傅琦 （82649469）