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DS: Fachverband Dünne Schichten
DS 13: Poster
DS 13.25: Poster
Donnerstag, 20. März 2025, 18:00–20:00, P1
Deposition of Medium-Entropy Telluride Thin Films via Hybrid Pulsed Laser Deposition — •Niklas Kohlrautz, Pia Henning, and Jasnamol Palakkal — Institute of Materials Physics, Georg-August-University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
High- and medium-entropy materials (HEMs and MEMs) are known for their great multifunctional properties, such as ordered magnetism and promising catalytic behavior [1]. Moreover, tellurides are recognized for their novel magnetic properties, including room-temperature ferromagnetism and large magnetic anisotropy, as well as catalytic potential [2][3]. Designing novel high-entropy tellurides opens new possibilities for discovering multifunctional materials. Toward the goal of synthesis of novel HEMs, we fabricated MEM tellurides (FeCrNiTe) via hybrid pulsed laser deposition (PLD). In this presentation, we will address the challenges in growing (FeCrNi)xTe and the detailed structural and physical characterization. FeCrNiTe films were synthesized on SrTiO3(001) substrates providing FeCrNi via the standard PLD process and Te through a molecular beam source, allowing easy Te stoichiometry control. Systematic studies of growth parameters yielded high-quality epitaxial thin films with elemental surface homogeneity. We are investigating the magnetic, electric and electrocatalytic properties of the films, comparing the results with the crystal structure.
[1] Z. Zhang et al., Chemical Engineering Journal 2024, 498, 155736.
[2] A. Tschesche et al., R.S., doi.org/10.21203/rs.3.rs-4861088/v1.
[3] N. Oueldna, Materials Horizons 2024, 11(10), 2323-2354.
Keywords: Pulsed Laser Deposition; Molecular Beam Epitaxy; Medium-Entropy Materials; Tellurides