Dresden 2017 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 53: Poster Session: Superconductivity 1

TT 53.9: Poster

Mittwoch, 22. März 2017, 15:00–19:00, P2-OG2

Ferromagnetic order and superconductivity in new 1144 iron-based superconductors investigated with NMR — •Felix Brückner1, Rajib Sarkar1, Yi Liu2, Guang-Han Cao2, and Hans-Henning Klauss11Institut für Festkörperphysik, Technische Universität Dresden, Dresden, Germany — 2Department of Physics, Zhejiang University of Science and Technology, Hangzhou, China

The recent discovery of two new iron-based superconductors – the so-called 1144 systems – enriches the list of ferromagnetic superconductors. These compounds crystallize in a structure similar to 122 systems. The unique feature is that adjacent interlayers contain different atoms. In our case two systems (Rb/Cs)EuFe4As4 are investigated with NMR to clarify the interplay between superconductivity and Eu-ferromagnetism. We present caracterization data as well as NMR spectroscopy and relaxation data.

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