Origin of metal–insulator transition in the weak-ferromagnetic superconductor system RuSr2RCu2O8 (R=rare earths)

For the oxygen-annealed weak-ferromagnetic superconductor system RuSr2RCu2O8 (R=rare earths), superconducting transition temperature Tsc decreases steadily from maximum 56K for smaller rare earth Gd3+ (ionic radius r=0.105nm), to 54K for (Eu0.5Gd0.5)3+, 36K for Eu3+, 8K for (Sm0.5Eu0.5)3+, and metal...

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Veröffentlicht in:	Physica. C, Superconductivity Superconductivity, 2007-09, Vol.460-462 (1), p.503-505
Hauptverfasser:	Chang, B.C., Yang, C.Y., Hsu, Y.Y., Ku, H.C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Cuprates superconductors (high tc and insulating parent compounds) Electronic structure Exact sciences and technology Metal–insulator transition Other cuprates Physics Properties of type I and type II superconductors Superconductivity Weak-ferromagnetic superconductor
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