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.

8 pages, 5 figures, submitted to JPSJ (SCES 2013)

References in corpus (13)

• Scanning tunneling spectroscopy of high-temperature superconductors
• Heavy Fermions and Quantum Phase Transitions
• Hidden Magnetism and Quantum Criticality in the Heavy Fermion Superconductor CeRhIn5
• Spin resonance in the d-wave superconductor CeCoIn5
• The Ground State of the Pseudogap in Cuprate Superconductors
• Magnetically driven superconductivity in CeCu2Si2
• Visualizing heavy fermions emerging in a quantum critical Kondo lattice
• Andreev Reflection in Heavy-Fermion Superconductors and Order Parameter Symmetry in CeCoIn_5
• Interacting Antiferromagnetic Droplets in Quantum Critical CeCoIn_5
• Spectroscopic Evidence for Multiple Order Parameter Components in the Heavy Fermion Superconductor CeCoIn_5
• Towards the identification of a quantum critical line in the (p, B) phase diagram of CeCoIn5
• Superconductivity in Ce- and U-based "122" heavy-fermion compounds
• A precursor state to unconventional superconductivity in CeIrIn${}_5$

Cited by in corpus (4)

• Unconventional Superconductivity
• Orientation of ground-state orbital in CeCoIn${}_5$ and CeRhIn${}_5$
• Hybridization-Controlled Pseudogap State in the Quantum Critical Superconductor CeCoIn5
• Quantum Phase Transition in $\mathrm{CeCoI}{\mathrm{n}}_5$: Experimental Facts and Theory