Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction
| ISSN: |
0038-1098
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|---|---|
| Source: |
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
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| Topics: |
Physics
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| Type of Medium: |
Electronic Resource
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| URL: |
| _version_ | 1798291252663287809 |
|---|---|
| autor | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. |
| autorsonst | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. |
| book_url | http://linkinghub.elsevier.com/retrieve/pii/0038-1098(87)91066-0 |
| datenlieferant | nat_lic_papers |
| fussnote | The average structure at 8 K of Ba"2YCu"3O"7 (critical temperature T"c = 90 K) was refined by the Rietveld method (space group Pmmm, a =3.817(2)Å, b =3.883(2)Å, c =11.633(7)Å, R"w"p = 0.11, 28 parameters, T = 8 K). It contains two Cu sites of which one has square-pyramidal ([CuO] = 2 x 1.925(1)Å, 2 x 1.959(1)Å (base), 2.285(6)Å (apex) and the other square-planar ([CuO] = 2 x 1.850(5)Å, 2 x 1.942(1)Å) oxygen coordination. The CuO bonds are connected to quasi two-dimensional networks forming 10Å thick structural slabs parallel to the ab plane. Large displacement amplitudes of one oxygen atom along [1 0 0] (〈u^2〉 = 0.032(5)Å^2) and associated short repulsive oxygen-oxygen contacts [OO] = 2.682(4)Å) suggests a low-temperature structural phase transition. The average structure can be described as an intergrowth of tetragonal La"2SrCu"2O"6 type structure slabs with CuO chains. |
| hauptsatz | hsatz_simple |
| identnr | NLZ179197363 |
| issn | 0038-1098 |
| journal_name | Solid State Communications |
| materialart | 1 |
| package_name | Elsevier |
| publikationsort | Amsterdam |
| publisher | Elsevier |
| reference | 63 (1987), S. 1149-1153 |
| search_space | articles |
| shingle_author_1 | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. |
| shingle_author_2 | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. |
| shingle_author_3 | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. |
| shingle_author_4 | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. |
| shingle_catch_all_1 | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction 0038-1098 00381098 Elsevier |
| shingle_catch_all_2 | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction 0038-1098 00381098 Elsevier |
| shingle_catch_all_3 | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction 0038-1098 00381098 Elsevier |
| shingle_catch_all_4 | Francois, M. Walker, E. Jorda, J.-L. Yvon, K. Fischer, P. Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction 0038-1098 00381098 Elsevier |
| shingle_title_1 | Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction |
| shingle_title_2 | Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction |
| shingle_title_3 | Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction |
| shingle_title_4 | Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
| timestamp | 2024-05-06T08:29:40.774Z |
| titel | Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction |
| titel_suche | Structure of the high-temperature superconductor Ba"2YCu"3O"7 by X-ray and neutron powder diffraction The average structure at 8 K of Ba"2YCu"3O"7 (critical temperature T"c = 90 K) was refined by the Rietveld method (space group Pmmm, a =3.817(2)Å, b =3.883(2)Å, c =11.633(7)Å, R"w"p = 0.11, 28 parameters, T = 8 K). It contains two Cu sites of which one has square-pyramidal ([CuO] = 2 x 1.925(1)Å, 2 x 1.959(1)Å (base), 2.285(6)Å (apex) and the other square-planar ([CuO] = 2 x 1.850(5)Å, 2 x 1.942(1)Å) oxygen coordination. The CuO bonds are connected to quasi two-dimensional networks forming 10Å thick structural slabs parallel to the ab plane. Large displacement amplitudes of one oxygen atom along [1 0 0] (〈u^2〉 = 0.032(5)Å^2) and associated short repulsive oxygen-oxygen contacts [OO] = 2.682(4)Å) suggests a low-temperature structural phase transition. The average structure can be described as an intergrowth of tetragonal La"2SrCu"2O"6 type structure slabs with CuO chains. |
| topic | U |
| uid | nat_lic_papers_NLZ179197363 |