Condensed Matter Seminar

Extreme Ultraviolet Light Source and Research at ASML

Alex Frenzel (ASML)

Extreme Ultraviolet Light Source and Research at ASML

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Magneto-optical probes shed light on the unconventional transport and magnetism of Eu – based semi-metals

Abstract:

Understanding the mechanisms and consequences of the coupling between disparate degrees of freedom is at the forefront of quantum materials research. A prominent example is coupling between magnetic and electronic degrees of freedom, offering the exciting opportunity to control the near Fermi level electronic structure and topology by manipulating magnetic order. However, the same coupling may promote a complex magnetic state, which is challenging to identify experimentally.

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Imaging and Probing Atomically Thin Quantum Material Devices at the Nanoscale

Abstract: The harnessing and manipulation of electronic states in quantum materials has the potential to revolutionize computation, sensing, storage, and communications, thus impacting multiple facets of our everyday lives. In this talk I will discuss my group’s recent experiments with graphene, a highly versatile carbon-based quantum material that hosts ultra-relativistic charges. This unique attribute can be leveraged for future quantum technologies.

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SU(N)-symmetric density matrix renormalization group

Abstract:

There is a lot of interest in finding and identifying novel
quantum materials. We here focus on d1 materials with a
strong spin-orbit coupling, which are supposed to realize a much
higher symmetry than SU(2), an emergent SU(4) symmetry [1,2].