DISSIPATIVE EFFECTS IN BI2SR2CA1CU2O8+X AND BI1.7PB0.3SR2CA1CU2O8+X SINGLE-CRYSTALS

被引：0
|
作者：
AGOSTINELLI, E [1 ]
FIORANI, D [1 ]
FOLCH, R [1 ]
TEJADA, J [1 ]
TESTA, AM [1 ]
机构：
[1] UNIV BARCELONA,DEPT FIS FONAMENTAL,BARCELONA 7,SPAIN
来源：
JOURNAL OF THE LESS-COMMON METALS | 1990年 / 164卷
关键词：
D O I：
10.1016/0022-5088(90)90259-M
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Dissipative effects have been investigated in Bi2Sr2Ca1Cu2O8 + x and Bi1.7Pb0.3Sr2Ca1Cu2O8 + x single crystals by critical current and magnetic relaxation measurements. Both crystals consisted of 2212 single phase material (Tc = 85 K and 92 K for the pure and doped samples, respectively). At T = 4.2 K the BPSCCO system exhibited a critical current density one order of magnitude higher and much slower relaxation rates of Mzfc (T = 4.2 K ÷ 20 K) than the pure compound. © 1990.
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页码：553 / 558
页数：6
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