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Characteristic crossing point (<i>T</i><sub>*</sub>≈2.7 K) in specific heat curves of samples RuSr<sub>2</sub>Gd<sub>1.5</sub>Ce<sub>0.5</sub>Cu<sub>2</sub>O<sub>10−δ</sub>taken for different values of magnetic field
Magnetic properties of polycrystalline samples of RuSr(2)(Gd(1.5)Ce(0.5))Cu(2)O(10-δ), as-prepared (by solid-state reaction) and annealed (12 h at 845 °C) in pure oxygen at different pressure (30, 62 and 78 atm) are presented. The specific heat and magnetization were investigated in the temperature range 1.8-300 K with a magnetic field up to …