EFFECT OF COMPLEX DOPANTS (LI+ WITH AL3+) SUBSTITUTED FOR CU IONS IN PREPARING THE SUPERCONDUCTING YBCO

被引：1

作者：

SUZUKI, T ^{[1
]}

OKADA, H ^{[1
]}

TAKEUCHI, T ^{[1
]}

机构：

[1] SOPHIA UNIV,DEPT NAT SCI,CHIYODA KU,TOKYO 102,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 77卷 / 08期

关键词：

D O I：

10.1016/0038-1098(91)90929-P

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of complex dopants (Li+ with Al3+) substituted for Cu ions was examined in preparing the superconducting YBCO. The same amount of Li+ and Al3+ was simultaneously prescribed to prepare target compounds of the nominal composition YBa2 Cu3-2x (LiAl)x O7-delta. Specimens with dilute concentration of the complex-dopants (x < 0.1) composed a single phase of the normal YBCO-type crystallite with good superconductivity. Specimens with heavy concentration of the complex-dopants (0.2 < x < 0.7) were not single phase, but contained crystalline domains of the normal YBCO structure and showed, as a whole, better superconductivity than the specimens of a nominal composition YBa2 Cu3-2xO7-delta without substitutional dopants for all values of x. Therefore, the complex-dopants (Li+ with Al3+) substituted for Cu ions exert interesting effects in preparing the superconducting YBCO.

引用

页码：587 / 592

页数：6

共 15 条

[1] EFFECTS OF ALKALI CATION (LI, NA, K, CS) SUBSTITUTION ON THE MAGNETO-ELECTRICAL PROPERTIES OF Y1BA2CU3O7-Y GRANULAR SUPERCONDUCTORS [J].