(Hg,Pb)(Ba,Sr)(2)Ca2Cu3O8+delta single crystals: Influence of Sr substitutions on structure, hole concentration in CuO2 planes and irreversibility lineстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 30 октября 2013 г.
Аннотация: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 single crystals were investigated. The main results are: (1) H-irr increases significantly with Sr substitution, (2) in nonsubstituted crystals almost all holes are concentrated in the inner CuO2 planes, (3) with increasing Sr content 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.