Crystal structures of Ba4CaCu3O8+δ and Ba6CaCu3O10+δ

Xuan, Hoan Nguyen; Galez, Ph.; Bertrand, Ch.; Benghia, Ali

doi:10.1016/j.matlet.2004.10.010

Cited by 2 publications

(3 citation statements)

References 10 publications

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“…The crystal structure of cubic Ba 4 CaCu 3 O 8+d as deduced from earlier reports [1,4,11] has been described in the introduction and the present refinement yielded the same results within standard uncertainties. It gives an oxygen composition of z ¼ 8:68 and an average valence of+2.51 per copper atom.…”

Section: Crystal Structure Of Cubic and Tetragonal Ba 4 Cacu 3 O 8+dsupporting

confidence: 79%

“…For a good counting statistics during the neutron diffraction experiments, about 9 g were prepared in each case which represent 6 pellets, 8 mm in diameter and 10 mm in height. To avoid degradation by air moisture [11], these pellets were sealed in a quartz tube under vacuum immediately after sintering. …”

Section: Sample Preparationmentioning

confidence: 99%

“…We also proposed from X-ray diffraction data [11] a tetragonal structure (I4/mmm) for Ba 4 CaCu 3 O 8+d when it is prepared in an inert atmosphere.…”

Section: Introductionmentioning

confidence: 99%

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