Suppression of Modulations in Fluorinated Bi-2201 Phases
作者： J. Hadermann , N.R. Khasanova , G. Van Tendeloo , A.M. Abakumov , M.G. Rozova
关键词: Cuprate 、 Inorganic chemistry 、 Phase (matter) 、 Perovskite (structure) 、 Superstructure (condensed matter) 、 Powder diffraction 、 Crystallography 、 Crystal structure 、 Electron microscope 、 Tetragonal crystal system 、 Chemistry
摘要: Abstract Bi2Sr1.6La0.4CuO6.33 and Bi2Sr1.2La0.8CuO6.46 are fluorinated using XeF2 as a fluorinating agent studied by X-ray powder diffraction high-resolution electron microscopy. The highly Bi-2201 phase undergoes structural transformation that is accompanied the formation of an I-centered tetragonal unit cell, suppression √2ap×√2ap superstructure, disappearance (BiO)2 modulation, elongation c parameter about 1.65–1.77 A. modification Bi2O2 block into Bi2O2−δF2+δ with filled tetrahedral interstitial positions responsible for observed changes eliminates mismatch between (BiO) rock salt layers perovskite (CuO2) layers. structure material compared structures other intercalated Bi-based cuprates phases composing Bi2(O,F)4 blocks in structure.
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sci-hub.se 参考文章(16)
J. Hadermann, A.M. Abakumov, O.I. Lebedev, G. Van Tendeloo, M.G. Rozova, R.V. Shpanchenko, B.Ph. Pavljuk, E.M. Kopnin, E.V. Antipov, Structural transformations in the fluorinated T^{*} phase Journal of Solid State Chemistry. ,vol. 147, pp. 647- 656 ,(1999) , 10.1006/JSSC.1999.8438
A.M. Abakumov, J. Hadermann, G. Van Tendeloo, R.V. Shpanchenko, P.N. Oleinikov, E.V. Antipov, Anion Ordering in Fluorinated La2CuO4 Journal of Solid State Chemistry. ,vol. 142, pp. 440- 450 ,(1999) , 10.1006/JSSC.1998.8064
T. Kijima, H. Sushida, M. Yada, M. Machida, Synthesis and Characterization of a New Layered Cuprate LiI3Bi2Sr2CaCu2O8 Journal of Solid State Chemistry. ,vol. 141, pp. 452- 456 ,(1998) , 10.1006/JSSC.1998.7972
S.-J. Hwang, N.-G. Park, D.-H. Kim, J.-H. Choy, Charge Transfer–TcRelation in the Superconducting Intercalates IBi2Sr2CaCu2Oy Journal of Solid State Chemistry. ,vol. 138, pp. 66- 73 ,(1998) , 10.1006/JSSC.1998.7755
N. Kijima, R. Gronsky, X.-D. Xiang, W.A. Vareka, J. Hou, A. Zettl, J.L. Corkill, Marvin L. Cohen, Structural properties of stage-1 iodine-intercalated superconducting I (Bi0.915, Pb0.085)2(Sr0.93, Pb0.07)2(Ca0.965, Pb0.035)2Cu3Oχ Physica C-superconductivity and Its Applications. ,vol. 198, pp. 309- 317 ,(1992) , 10.1016/0921-4534(92)90206-R
A. K. Cheetham, N. Norman, Håkon Hope, Arne Kjekshus, Bernt Klewe, D. L. Powell, THE STRUCTURES OF YTTRIUM AND BISMUTH TRIFLUORIDES BY NEUTRON DIFFRACTION Acta Chemica Scandinavica. ,vol. 5, pp. 55- 60 ,(1974) , 10.3891/ACTA.CHEM.SCAND.28A-0055
J SOUBEYROUX, S MATAR, J REAU, P HAGENMULLER, Etude des proprietes structurales et electriques de la solution solide Pb1−xBixOxF2−x Solid State Ionics. ,vol. 14, pp. 337- 345 ,(1984) , 10.1016/0167-2738(84)90118-8
M. AI-Mamouri, P. P. Edwards, C. Greaves, M. Slaski, Synthesis and superconducting properties of the strontium copper oxy-fluoride Sr2CuO2F2+δ Nature. ,vol. 369, pp. 382- 384 ,(1994) , 10.1038/369382A0
N.R. Khasanova, E.V. Antipov, BI-2201 PHASES - SYNTHESIS, STRUCTURES AND SUPERCONDUCTING PROPERTIES Physica C-superconductivity and Its Applications. ,vol. 246, pp. 241- 252 ,(1995) , 10.1016/0921-4534(95)00172-7
H.W. Zandbergen, W.A. Groen, F.C. Mijlhoff, G. van Tendeloo, S. Amelinckx, Models for the modulation in A2B2CanCu1+nO6+2n, A, B=Bi, Sr OR Tl, Ba and n=0, 1, 2 Physica C-superconductivity and Its Applications. ,vol. 156, pp. 325- 354 ,(1988) , 10.1016/0921-4534(88)90756-3