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

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.

arXiv comment8 pages, 5 figures, submitted to JPSJ (SCES 2013)

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Cited by in corpus (8)

• Unconventional Superconductivity
• Heavy-electron quantum criticality and single-particle spectroscopy
• Spatially modulated heavy-fermion superconductivity in CeIrIn5
• Orientation of ground-state orbital in CeCoIn${}_5$ and CeRhIn${}_5$
• Hybridization-Controlled Pseudogap State in the Quantum Critical Superconductor CeCoIn5
• Vortexlike excitations in the heavy-fermion superconductor CeIrIn${}_5$
• Heat transport study of field-tuned quantum criticality in CeIrIn5
• Quantum Phase Transition in $\mathrm{CeCoI}{\mathrm{n}}_5$: Experimental Facts and Theory