We present the crystallographic analysis, superconducting and spectroscopic characterization, and theoretical modeling of CeIr3. Lattice parameters a = 5.2945(1) Å and c = 26.219(1) Å are found for the R-3m symmetry crystal structure, which are close to the literature values. CeIr3 is a moderate type-II superconductor (κ GL = 17, λ e–p = 0.65) below 2.5 K. Ce ions exhibit a strongly intermediate valence character as evidenced by x-ray photoelectron spectroscopy. The normal state magnetic susceptibility is weakly temperature dependent and follows the inter-configuration fluctuation model with a singlet Ce−4 f 0 ground state. Theoretical calculations support a non-magnetic ground state of the system and reveal that Ir−5d states are dominant at the Fermi level.
Authors
- dr inż. Karolina Górnicka link open in new tab ,
- Elizabeth M. Carnicom,
- Sylwia Gołąb,
- dr inż. Marcin Stanisław Łapiński link open in new tab ,
- Bartłomiej Wiendlocha,
- Weiwei Xie,
- Dariusz Kaczorowski,
- Robert J. Cava,
- prof. dr hab. inż. Tomasz Klimczuk link open in new tab
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1088/1361-6668/aaf48f
- Category
- Publikacja w czasopiśmie
- Type
- artykuł w czasopiśmie wyróżnionym w JCR
- Language
- angielski
- Publication year
- 2019
