Regensburg 2022 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 21: Correlated Electrons: Poster Session
TT 21.13: Poster
Mittwoch, 7. September 2022, 15:00–18:00, P1
Crystal Growth and Characterization of ZrFe4Si2 — •Katharina M. Zoch, Isabel Reiser, Alexander Bodach, Kristin Kliemt, and Cornelius Krellner — Physikalisches Institut, Goethe-Universität Frankfurt, 60438 Frankfurt am Main, Germany
The ZrFe4Si2-structure consists of edge-linked Fe-tetrahedra along the crystallographic c-direction. This type of arrangement is prone to show frustration and low dimensional fluctuations. First results on polycrystalline samples indicate that ZrFe4Si2 displays some sort of weak magnetic order, for an Fe-based compound, unusual low temperatures as well as deviant behavior in specific heat and resistivity compared to normal metals [1,2]. To investigate these features further, we are in need of single crystals. The crystal growth is a challenging subject. The compound is strongly peritectic melting and its elements are reactive with common crucible materials. Crystal growth experiments utilizing the Czochralski methods were performed, and the structure as well as magnetic, thermodynamic and electrical transport properties of the material were analyzed.
[1] M. O. Ajeesh et al., Phys. Rev. B, 102, 184403 (2020)
[2] K. Weber, PhD thesis Technische Universität Dresden (2017)