Bulk superconductivity in Ru0.9Sr2YCu2.1O7.9 -: art. no. 172502

被引：23

作者：

Awana, VPS ^{[1
]}

Kawashima, T ^{[1
]}

Takayama-Muromachi, E ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Supercond Mat Ctr, Tsukuba, Ibaraki 3050044, Japan

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.67.172502

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An Ru0.9Sr2YCu2.1O7.9 sample synthesized by high-pressure high-temperature solid-state reaction underwent (weak) ferromagnetic transition at similar to150 K followed by a bulk superconducting transition at similar to30 K. It showed a clear Meissner signal in the field-cooled process up to external magnetic field of a few hundred Oe (similar to300 Oe). These results appear to indicate coexistence of bulk superconductivity and ferromagnetism. At the same time, both magnetic-susceptibility and hysteresis data can be interpreted as mere superimposition of superconducting diamagnetic and (weak) ferromagnetic responses without any anomalous behavior. The genuine coexistence of bulk superconductivity and ferromagnetism in this compound might not yet be conclusive.

引用

页数：4

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