EFFECTS OF OXYGEN-POTENTIAL-CONTROLLED ANNEALING ON THE SUPERCONDUCTING PROPERTIES OF (BI, PB)2SR2CA2CU3OY THIN-FILMS

被引：21
|
作者：
HATTORI, H [1 ]
NAKAMURA, K [1 ]
OGAWA, K [1 ]
机构：
[1] NATL RES INST MET,TSUKUBA,IBARAKI 305,JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1990年 / 29卷 / 01期
关键词：
(Bi; Pb)[!sub]2[!/sub]Sr[!sub]2[!/sub]Ca[!sub]2[!/sub]Cu[!sub]3[!/sub]O[!sub]y[!/sub; Film; Hall coefficient; Monophase; Oxygen concentration; Resistivity;
D O I：
10.1143/JJAP.29.L36
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The oxygen potential of thin films consisting of monophasic (Bi, Pb)2Sr2Ca2Cu3Oywas controlled by annealing them under various oxygen partial pressures. The Tcof (Bi, Pb)2Sr2Ca2Cu3Oywas found to decrease monotonously with decreasing oxygen potential. However, Tcdid not change when annealed under higher oxygen pressure up to 2.9×104torr. The carrier concentration was found to change with oxygen partial pressure, implying that oxygen supplies the carrier. An optimum range of the carrier concentration exists for attaining the highest Tc. This finding is consistent with those of other high Tchole-type superconductors. © 1990 IOP Publishing Ltd.
引用
收藏
页码：L36 / L39
页数：4
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