## Abstract

The effect of substitution of Y atoms for Ca atoms has been studied in the Bi_{2}Sr_{2}Ca_{1-x}Y_{x}Cu_{2}O_{y} compound system. For x<0.5, superconductivity is observed and its fractional volume is reduced with increasing x, though the transition temperature of about 85 K is maintained. For x≧0.5 samples, the electrical resistivity behavior can be well described by the three-dimensional variable range hopping conduction, indicating that the system is essentially insulating. In this range of x, magnetic susceptibility shows spin-glass-type cusp at 13 K in the heating process after zero-field cooling and an enhanced cusp at 11 K in the field-cooling process. In the temperature range above about 150 K the Curie-Weiss dependence holds well with a positive paramagnetic Curie temperature, which increases to 40 K with increasing x in the insulating region.

Original language | English |
---|---|

Pages (from-to) | 408-412 |

Number of pages | 5 |

Journal | Physica C: Superconductivity and its Applications |

Volume | 152 |

Issue number | 5 |

DOIs | |

Publication status | Published - 1988 Jul 1 |

## Fingerprint

Dive into the research topics of 'Superconducting and magnetic properties of Bi_{2}Sr

_{2}Ca

_{1-x}Y

_{x}Cu

_{2}O

_{y}(0≦x≦1)'. Together they form a unique fingerprint.