caa a22 4500 386401268 CHVBK 20180307112159.0 cr unu---uuuuu 161130e198903 xx s 000 0 eng 10.1017/S0885715600016262 doi S0885715600016262 pii (NATIONALLICENCE)cambridge-10.1017/S0885715600016262 The Crystal Structure of BaY2O4, Isotypic with SrY2O4 [Elektronische Daten] Since the discovery of the superconductivity in Ba2YCu3 O7-x, the system Ba-Y-Cu-O has generated vast interest. The presence and the properties of the intermediate phases were examined, and the existence of the BaY2O4 phase was confirmed. We have determined the crystal structure of this material from powder data; it is orthorhombic, Pnma (no 62) with a = 10.394(3) Å, b = 3.450(1) Å, c = 12.113(4) Å, isotypic with SrY2O4 (CaFe2O4-type). The observed and calculated intensity values are reported together with the powder diffraction data, obtained both by Guinier and diffractometer methods. Copyright © Cambridge University Press 1989 Costa G.A. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia. Ferretti M. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia. Fornasini M.L. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia. Franceschi E.A. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia. Olcese G.L. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia. Powder Diffraction Cambridge University Press 4/1(1989-03), 24-25 0885-7156 4:1<24 1989 4 PDJ https://doi.org/10.1017/S0885715600016262 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0885715600016262 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Costa G.A. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia NATIONALLICENCE 700 1- Ferretti M. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia NATIONALLICENCE 700 1- Fornasini M.L. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia NATIONALLICENCE 700 1- Franceschi E.A. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia NATIONALLICENCE 700 1- Olcese G.L. Istituto di Chimica Fisica, Corso Europa 26, 16132 Genova, Italia NATIONALLICENCE 773 0- Powder Diffraction Cambridge University Press 4/1(1989-03), 24-25 0885-7156 4:1<24 1989 4 PDJ CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge