Magnetism, Upper critical field and Thermoelectric power of Magneto-Superconductor RuSr2Eu1.5Ce0.5Cu2O10

TL;DR

This study investigates the magnetic, superconducting, and thermoelectric properties of the RuSr2Eu1.5Ce0.5Cu2O10 superconductor, providing key parameters like transition temperatures and critical fields, and compares them with related ruthenate superconductors.

Contribution

It reports new measurements of magnetic and superconducting properties of RuSr2Eu1.5Ce0.5Cu2O10, including transition temperatures and critical fields, enhancing understanding of this material's physical characteristics.

Findings

Magnetic transition temperature Tmag = 140 K

Superconducting transition temperature Tc = 25-33 K

Upper critical field Hc2(0) > 32 T

Abstract

Magnetic susceptibility, M-H plot, magnetoresistance and thermoelectric power of the RuSr2Eu1.5Ce0.5Cu2O10 superconductor are measured. Values of the magnetic transition temperature Tmag, superconductivity transition temperature Tc, upper critical field Hc2, chemical potential mu, and energy width for electric conduction W(sigma) are obtained from these measurements. It has been found that Tmag = 140 K, Tc = 25 K (33 K) from susceptibility (magnetoresistance) measurements, Hc2 (0) > 32 T, mu = 8 meV, and W(sigma) = 58.5 meV. These values are compared with other ruthenate superconductors, and resulting physical information is discussed.