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Marein C. Rahn on Muck Rack

Marein C. Rahn

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Articles

Understanding unconventional magnetic order in a candidate axion insulator by resonant elastic x-ray scattering - Nature Communications

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By Jian-Rui Soh, Alessandro Bombardi, Frédéric Mila, Dharmalingam Prabhakaran, Sonia Francoual, Henrik M. Rønnow, Marein C. Rahn
| Nature Verified
Abstract Magnetic topological insulators and semimetals are a class of crystalline solids whose properties are strongly influenced by the coupling between non-trivial electronic topology and magnetic spin configurations. Such materials can host exotic electromagnetic responses. Among these are topological insulators with certain types of antiferromagnetic order which are predicted to realize axion electrodynamics.
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Robust Narrow-Gap Semiconducting Behavior in Square-Net La3Cd2As6

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By Mario M. Piva, Marein C. Rahn, Technische Universität Dresden, Sean Thomas
| tu-dresden.de
Narrow-gap semiconductors are sought-after materials due to their potential for long-wavelength detectors, thermoelectrics, and more recently nontrivial topology. Here, we report the synthesis and characterization of a new family of narrow-gap semiconductors, R3Cd2As6 (R = La and Ce). Single-crystal X-ray diffraction at room temperature reveals that the As square nets distort and Cd vacancies order in a monoclinic superstructure.
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