Regensburg 2022 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 21: Correlated Electrons: Poster Session

TT 21.23: Poster

Mittwoch, 7. September 2022, 15:00–18:00, P1

Synthesis, structure and property investigations of low-dimensional magnetism in double perovskite variants — •Anastasiia Smerechuk, Sabine Wurmehl, Bernd Büchner, and Ryan Morrow — Leibniz Institute for Solid-State and Materials Research, IFW-Dresden, 01069 Dresden, Germany

For many years perovskites in various modifications have been occupying a significant place in solid-state physics. The main feature of these materials is a large number of possible permutations of the structure. Although perovskites are mostly three-dimensional materials, low-dimensional magnetism can also be achieved in the special case. Current research is focused on two different approaches for that purpose. Experiments with the substitution of various compounds in double perovskites with Cu²⁺ were conducted at ambient and high pressure to acquire the magnetic interactions on a square lattice. Also, our research was concentrated on defect double perovskites, where vacancies have been ordered along with the ordering of cations. Then the hexagonal phases of perovskite can be transformed into triangular frustrated two-dimensional magnets. New inorganic transition metal oxides were synthesized. The crystallographic and magnetometry data will be discussed in detail in the poster.