(Hg,Pb)(Ba,Sr)(2)Ca2Cu3O8+delta single crystals: Influence of Sr substitutions on structure, hole concentration in CuO2 planes and irreversibility line

Authors
Karpinski, J Schwer, H Kazakov, SM Angst, M Jun, J Wisniewski, A Puzniak, R
Citation
J. Karpinski et al., (Hg,Pb)(Ba,Sr)(2)Ca2Cu3O8+delta single crystals: Influence of Sr substitutions on structure, hole concentration in CuO2 planes and irreversibility line, PHYSICA C, 341, 2000, pp. 421-424
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
1
Pages
421 - 424
Database
ISI
SICI code
0921-4534(200011)341:<421:(SCIOS>2.0.ZU;2-7
Abstract
The hole concentration in CuO2 planes, structure and irreversibility field (H-irr) as a function of Sr content in (Hg,Pb)(Ba,Sr)(2)Ca2Cu3O8+delta sing le crystals were investigated. The main results are: (1) H-irr increases si gnificantly with Sr substitution, (2) in nonsubstituted crystals almost all holes are concentrated in the inner CuO2 planes, (3) with increasing Sr co ntent the distribution of holes between outer and inner CuO2 planes becomes more homogeneous, (4) the thickness of the charge reservoir decreases with Sr substitution by 0.7 Angstrom.