2003/01/14 by Б. И. Белевцев, B. D. Hennings, Belevtsev, B. I. +5
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con)
paper · pdf · doi:10.48550/arxiv.cond-mat/0301207
openalex publication_date 2003/01/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present here an overview of thermal conductivity behavior in magnetic superconductors: rare-earth nickel borocarbide intermetallic compounds, RNi2B2C, and the 2122 rare-earth rutheno-cuprates. The borocarbide family of intermetallics exhibits the large variety of phenomena - only superconductivity (R = Y, Lu), coexistence of superconductivity and magnetic order (R = Tm, Er, Ho, Lu), only magnetic order (R = Tb, Gd), and heavy fermion behavior (R = Yb) - within the same crystal structure. The rutheno-cuprate Eu1.5Ce0.5RuSr2Cu2O10-δ exhibits coexistence of weak ferromagnetism and superconductivity at a surprisingly high temperature (≈ 45 K) and onset of antiferromagnetic order near 200 K. We demonstrate how coexistence of superconductivity and magnetic order in these compounds is releaved by the thermal conductivity studies.