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

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

2006-01-23

arxiv.org/abs/cond-mat/0601501v1

Physics

Condensed Matter

Superconductivity

18 pages of TEXT + FIGS. To appear in - J. PHYS. COND. MATT. (2006)

Scientific paper

10.1088/0953-8984/18/8/018

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.

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