LI SUBSTITUTION IN THE BI2SR2CA1CU2O8 SUPERCONDUCTOR

被引：41

作者：

HORIUCHI, T ^{[1
]}

KAWAI, T ^{[1
]}

MITSUI, K ^{[1
]}

OGURA, K ^{[1
]}

KAWAI, S ^{[1
]}

机构：

[1] KINKI UNIV,FAC SCI & TECHNOL,HIGASHIOSAKA,OSAKA 577,JAPAN

来源：

PHYSICA C | 1990年 / 168卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(90)90523-H

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Tc value of the Bi2Sr2Ca1Cu2O8 superconductor (2212-phase or BSCCO) rises with the substitution of Li for Cu. For the nominal composition of Bi:Sr:Ca:Cu:Li = 2.2:1.8:1.05:1.45:0.7, almost single 2212-phase is obtained by sintering at low temperature, 740°C, followed by quenching to room temperature. The samples shows a Tc,zero of 91 K in the resistance-temperature (R-T) curve and a Tc,on of 92 K in the Meissner effect. Both Ar annealing and O2 annealing make the R-T curve semiconductive. The results of X-ray diffraction measurements, electron microscopy and elemental analysis on this sample indicate that the Li ion occupies the Cu site. © 1990.

引用

页码：309 / 314

页数：6

共 5 条

[1] STRUCTURAL MODULATION AND SUPERCONDUCTING PROPERTIES IN BI2-XPBXSR2CACU2O8+D AND BI2-YPBYSR2YCU2O8+D [J].

FUKUSHIMA, N ;

NIU, H ;

NAKAMURA, SI ;

TAKENO, S ;

HAYASHI, M ;

ANDO, K .

PHYSICA C, 1989, 159 (06) :777-783

[2]

KAMBE S, IN PRESS P ISS 89

[3] EFFECT OF ALKALINE METAL SUBSTITUTIONS TO BI-SR-CA-CU-O SUPERCONDUCTOR [J].

KAWAI, T ;

HORIUCHI, T ;

MITSUI, K ;

OGURA, K ;

TAKAGI, S ;

KAWAI, S .

PHYSICA C, 1989, 161 (5-6) :561-566

[4] REVERSIBLE TC CHANGE IN BI-SR-CA-CU-O THIN-FILMS BY UV PHOTO AND THERMAL ANNEALINGS [J].

KAWASAKI, M ;

NAGATA, S ;

TAKEUCHI, K ;

KOINUMA, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (11) :L2227-L2229

[5]

TAKEKAWA S, 1989, IN PRESS J CRYST GRO

← 1 →