Two phase intergrowth in <script type="math/tex">Bi_{2}Sr_{2}Ca_{0.6}Y_{0.4}Cu_{2}O_{y}</script> single crystals

Zhang, X.F.; Van Tendeloo, G.; Ge, S.L.; Emmen, J.H.P.M.; Brabers, V.A.M.

doi:10.1016/0921-4534(93)90362-T

Title

Two phase intergrowth in $Bi_{2}Sr_{2}Ca_{0.6}Y_{0.4}Cu_{2}O_{y}$ single crystals

Author

Zhang, X.F.

Van Tendeloo, G.

Ge, S.L.

Emmen, J.H.P.M.

Brabers, V.A.M.

Abstract

In Bi2Sr2Ca0.6Y0.4Cu2Oy single crystals we have identified the intergrowth of two phases; a normal Bi2Sr2CaCu2Oy type phase with a 4.6b modulation period and a secondary,phase with a 9.4b modulation period. Both the two phases have orthorhombic basic structures with similar lattice parameters but different symmetries, i.e. Bbmb for the normal phase and Ccca for the secondary phase. The c-parameters of these two phases are found to vary independently upon changing the nominal Y content. The modulation characteristics of the secondary phase implies a close structural relation between the two phases. Both phases are discussed from a structural and a compositional point of view.

Language

English

Source (journal)

Physica: C : superconductivity. - Amsterdam, 1988, currens

Publication

Amsterdam : North-Holland , 1993

ISSN

0921-4534 [print]

1873-2143 [online]

DOI

10.1016/0921-4534(93)90362-T

Volume/pages