@article{
 title = {Effect of the substitution Ba.tautm.Sr on the Ga-1222 superstructure: an electron diffraction study},
 type = {article},
 year = {1995},
 identifiers = {[object Object]},
 pages = {1709-1715},
 volume = {7},
 websites = {http://pubs.acs.org/doi/abs/10.1021/cm00057a021},
 publisher = {AMER CHEMICAL SOC},
 city = {PO BOX 57136, WASHINGTON, DC 20037-0136},
 id = {732ab507-cd59-3772-a869-0f163c816968},
 created = {2016-11-30T14:26:32.000Z},
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 profile_id = {12182ba0-f80b-33ff-8da5-1813b38b682d},
 group_id = {49ce86ba-a52a-36eb-a7fb-9e42f732edd5},
 last_modified = {2017-03-14T17:25:32.499Z},
 read = {false},
 starred = {false},
 authored = {false},
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 citation_key = {ISI:A1995RW21200021},
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 abstract = {The superstructure of the RE(2)(Sr0.85-xBaxNd0.15)(2)GaCU2O9 compound is found to change significantly with increasing substitution of Ba for Sr. Most of the changes take place in the (Sr0.85-xBaxNd0.15)O-GaO-(Sr0.85-xBaxNd0.15)O lamella, the rest of the basic structure being hardly affected. The structural changes for O less than or equal to x less than or equal to 0.65 are studied by electron diffraction. The arrangement of the chains of GaO4 tetrahedra in the Ba-free compound becomes disordered at x > 0.25. At x similar to 0.65 a rearrangement of the chains in the GaO layers takes place; they form a meandering arrangement, which can be described on a 4a(p) x 2a(p) x c(p) superlattice. This rearrangement is accompanied by ordering of Ba and Sr atoms in the adjacent (ST0.85-xBaxNd0.15)O layers. A simple scheme is proposed to explain the influence of the substitution of Ba for Sr on the linking of the GaO4 tetrahedra and on the geometry of the `'chains'' in the GaO layer.},
 bibtype = {article},
 author = {Milat, Ognjen and Van Tendeloo, Gustaaf and Amelinckx, Severin and Wright, A J and Greaves, C.},
 journal = {Chemistry of Materials},
 number = {9}
}

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