Critical behaviour and irreversibility in a mixed perovskite Ca0.6Sr0.4RuO3

Abstract A comprehensive analysis of the critical and irreversible components of the magnetic response of a mixed perovskite Ca 0.6 Sr 0.4 RuO 3 is presented. The analysis identifies this system as a ferromagnet with significant exchange bond disorder, and yields the spectrum of metastable state excitation energies which characterize the evolution of the domain structure.