TEM study of the iodine intercalated Bi1.5Pb0.5Sr2Ca2Cu3O10+x

被引：2

作者：

Dragoe, ND

Dechamps, M

Mazerolles, L

Berthet, P

Revcolevschi, A

机构：

[1] UNIV PARIS 11,LAB CHIM SOLIDES,CNRS,UA 446,F-91405 ORSAY,FRANCE

[2] CNRS,CTR ETUD CHIM MET,F-94400 VITRY SUR SEINE,FRANCE

来源：

MATERIALS RESEARCH BULLETIN | 1996年 / 31卷 / 12期

关键词：

layered compounds; superconductors; intercalation reactions; electron microscopy; crystal structure;

D O I：

10.1016/S0025-5408(96)00144-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The partial substitution of Pb for Bi made it possible to prepare single phase 2223 and iodide intercalated I-2223 BiSrCaCuO compounds. Both compounds were studied by TEM, HRTEM, X-ray diffraction, and electrical resistivity. A change in symmetry occurs upon intercalation, likely a Bbmb to Pbm2 transition, and the change in the stacking sequence of the perovskite blocks was directly observed by HRTEM. Low temperature electrical resistivity measurements showed a metallic type conduction with critical temperatures of 105 K and 83 K, respectively. The resistivity at room temperature was 1.6 x 10(-3) Ohm cm for 2223 and 0.14 Ohm cm for I-2223.

引用

页码：1521 / 1526

页数：6

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