2002/04/02 by C. Petrović, C. Petrovic, S. L. Bud'ko +3 · 1 citation
Materials Science · Mathematics · Physics and Astronomy · #Anisotropy #Condensed matter physics #Critical field #Field (mathematics) #Iron-based superconductors research #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetization #Mathematics #Philosophy #Physics #Quantum mechanics #Rare-earth and actinide compounds #Substitution (logic) #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.66.054534
Submitted to Phys. Rev. B
arxiv created 2002/04/02 · openalex publication_date 2002/08/29 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report the effects of La substitution on the superconducting state of the heavy-fermion superconductor CeCoIn5, as seen in transport and magnetization measurements. As opposed to the case of conventional superconductors, pair breaking by nonmagnetic La results in the depression of Tc and indicates a strong gap anisotropy. The upper critical field Hc2 values decrease with increased La concentration, but the critical field anisotropy, \ensuremathγ=Hc2a/Hc2c, does not change in Ce_1\ensuremath-xLaxCoIn5 (x=0--0.15). The electronic system is in the clean limit for all values of x.