Dresden 2026 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 62: Correlated Electrons – Poster II

TT 62.4: Poster

Wednesday, March 11, 2026, 15:00–17:00, P4

Growth and Structural Characterization of NdCo₂P₂ Single Crystals for Site-Resolved Magnetic Studies — •Francesca Martino^1,2, Benjamin Helmer¹, Kristin Kliemt¹, Kurt Kummer², and Cornelius Krellner¹ — ¹Physikalisches Institut, Goethe-Universität Frankfurt, Frankfurt am Main, Germany — ²European Synchrotron Radiation Facility (ESRF), Grenoble, France

Rare-earth intermetallics with both 3d transition-metal and 4f rare-earth magnetic moments exhibit rich and often unexpected magnetic phenomena. Indeed, different intriguing properties have been found in the LnCo₂P₂ family [1][2]. As a first step towards exploring these interactions in NdCo₂P₂, high-quality single crystals have been successfully grown. In this study, we present an optimized growth procedure, confirmed by structural characterization via X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDX), which demonstrates a well-ordered ThCr₂Si₂-type structure with high phase purity. Thermodynamic and transport measurements have also been performed to further assess the properties of the samples. These well-prepared single crystals provide a solid foundation for forthcoming site-specific X-ray magnetic spectroscopy studies, aiming to disentangle the contributions of the Nd and Co sublattices and to explore the complex magnetic behavior inherent to the LnCo₂P₂ series.
[1] G. Poelchen et al., ACS Nano 16, 3573(2022).
[2] C. Thompson et al., J. Mater. Chem. C2 (2014).

Keywords: Pnictides; Single crystal growth; Magnetism