Pressure-Induced Superconductors on Heavy Fermion System

Abstract

  Since the discovery of a heavy fermion superconductor CeCu₂Si₂ in 1979, heavy fermion superconductivity has been observed in several rare earth and actinide compounds. Especially the development of high pressure technique and crystal growth makes it possible to investigate the pressure-induced superconductivity in the heavy fermion compounds, possessing magnetic ordering at ambient pressure. In this article, we present recent advances in pressure-induced superconductivity around antiferromagnetic fluctuation, focusing on CeRhIn₅ and CeIrSi₃.