Transport, thermal, and magnetic properties of RuSr2(Gd1.5Ce0.5)Cu2O10−δ, a magnetic superconductor
作者： D. G. Naugle , K. D. D. Rathnayaka , V. B. Krasovitsky , B. I. Belevtsev , M. P. Anatska
DOI: 10.1063/1.2163276
关键词: Seebeck coefficient 、 Atmospheric temperature range 、 Materials science 、 Paramagnetism 、 Magnetic field 、 Heat capacity 、 Magnetization 、 Superconductivity 、 Condensed matter physics 、 Electrical resistivity and conductivity
摘要: Resistivity, thermoelectric power, heat capacity, and magnetization for samples of RuSr2(Gd1.5Ce0.5)Cu2O10−δ were investigated in the temperature range 1.8–300K with a magnetic field up to 8T. The resistive transitions superconducting state are found be determined by inhomogeneous (granular) structure, characterized intragranular, Tc0, intergranular, Tcg, transition temperatures. Heat C(T), shows jump at Tc0≈37.5K. A Schottky-type anomaly is C(T) below 20K. This low-temperature can attributed splitting ground term S7∕28 paramagnetic Gd3+ ions internal external fields.
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