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arXiv · 1404.0872

Structural investigations of CeIrIn${_5}$ and CeCoIn${_5}$ on macroscopic and atomic length scales

Steffen Wirth·Yurii Prots·Michael Wedel·Stefan Ernst·Stefan Kirchner·Zachary Fisk·Joe D. Thompson·Frank Steglich·Yuri Grin
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Abstract

For any thorough investigation of complex physical properties, as encountered in strongly correlated electron systems, not only single crystals of highest quality but also a detailed knowledge of the structural properties of the material are pivotal prerequisites. Here, we combine physical and chemical investigations on the prototypical heavy fermion superconductors CeIrIn${_5}$ and CeCoIn${_5}$ on atomic and macroscopic length scale to gain insight into their precise structural properties. Our approach spans from enhanced resolution X-ray diffraction experiments to atomic resolution by means of Scanning Tunneling Microscopy (STM) and reveal a certain type of local features (coexistence of minority and majority structural patterns) in the tetragonal HoCoGa$_5$-type structure of both compounds.

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Steffen Wirth, Yurii Prots, Michael Wedel, Stefan Ernst, Stefan Kirchner, Zachary Fisk, Joe D. Thompson, Frank Steglich, Yuri Grin. 2014-04-03. Structural investigations of CeIrIn${_5}$ and CeCoIn${_5}$ on macroscopic and atomic length scales. https://doi.org/10.7566/jpsj.83.061009

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