Affiliation:
1. Università di Salerno
2. Università degli studi di Salerno
Abstract
The layered ruthenocuprate materials RuSr2LnCu2O8 and
RuSr2(Ln1+xCe1-x)Cu2O10, with Ln=lanthanide or Y for both structures,
consist of pairs of CuO2 planes alternating with perovskite-like sheets of
vertex sharing RuO6 octahedra. Samples of Ru-1212 and Ru-1222 materials
were known to show both superconducting and magnetic transitions. Here,
we discuss the problem of the coexistence, considering a model which
includes two types of carriers responsible separately for the ordered phases.
By considering the interplay between a hybridization mechanism and the
direct exchange coupling between these carriers, we look at the stability of
the coexisting phase assuming an inhomogeneous superconducting phase.
Publisher
Trans Tech Publications Ltd
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