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Towards designer quantum materials

Eva Benckiser

Max Planck Institute for Solid State Research, Stuttgart, Germany

Oxide heterostructures enable the targeted design of quantum materials with specific, functional properties such as magnetism and superconductivity that provide intriguing perspectives for future information and energy technologies. Research in our group focuses on gaining a fundamental understanding of spin, orbital, charge, and lattice reconstructions in complex transition-metal oxide heterostructures, mainly using x-ray spectroscopy. Our goal is to identify the relevant interface reconstruction mechanisms that form the basis for a future rational design of these materials.

In my talk, I will focus on substrate facet-dependent changes in the phase behavior in correlated perovskite vanadates and nickelates [1-3] and on a superlattice approach for the design of unconventional superconductors [4].

[1] P. Radhakrishnan, et al., Phys. Rev. B 104, L121102 (2021)
[2] Y. E. Suyolcu, et al., Phys. Rev. Materials 5, 045001 (2021)
[3] M. Hepting, et al., Nature Physics 14, 1097–1102 (2018)
[4] R. A. Ortiz, et al., Phys. Rev. B 104, 165137 (2021)