Temperature dependence of the structural parameters of the non-oxide perovskite superconductor MgCNi3
We report the structural parameters of superconducting MgCxNi3 (x=0.96, Tc=7.3 K) as a function of temperature, from 2 to 295 K, determined by neutron powder diffraction profile refinement. The compound has the perovskite structure over the whole temperature range, with symmetry Pm3̄m and a=3.81221(...
Main Authors: | , , , , , , , |
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Format: | Journal article |
Language: | English |
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2001
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author | Huang, Q He, T Regan, K Rogado, N Hayward, M Haas, M Inumaru, K Cava, R |
author_facet | Huang, Q He, T Regan, K Rogado, N Hayward, M Haas, M Inumaru, K Cava, R |
author_sort | Huang, Q |
collection | OXFORD |
description | We report the structural parameters of superconducting MgCxNi3 (x=0.96, Tc=7.3 K) as a function of temperature, from 2 to 295 K, determined by neutron powder diffraction profile refinement. The compound has the perovskite structure over the whole temperature range, with symmetry Pm3̄m and a=3.81221(5) Å at 295 K: no structural or long range magnetic ordering transitions were observed. The lattice parameter a and the Debye-Waller factors for the individual atoms decrease smoothly with decreasing temperature. There are no unusual changes of the structural parameters near Tc. © 2001 Elsevier Science B.V. All rights reserved. |
first_indexed | 2024-03-06T23:09:55Z |
format | Journal article |
id | oxford-uuid:6516e2df-59a1-4c62-a5e9-7b987c1f2333 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-06T23:09:55Z |
publishDate | 2001 |
record_format | dspace |
spelling | oxford-uuid:6516e2df-59a1-4c62-a5e9-7b987c1f23332022-03-26T18:23:20ZTemperature dependence of the structural parameters of the non-oxide perovskite superconductor MgCNi3Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6516e2df-59a1-4c62-a5e9-7b987c1f2333EnglishSymplectic Elements at Oxford2001Huang, QHe, TRegan, KRogado, NHayward, MHaas, MInumaru, KCava, RWe report the structural parameters of superconducting MgCxNi3 (x=0.96, Tc=7.3 K) as a function of temperature, from 2 to 295 K, determined by neutron powder diffraction profile refinement. The compound has the perovskite structure over the whole temperature range, with symmetry Pm3̄m and a=3.81221(5) Å at 295 K: no structural or long range magnetic ordering transitions were observed. The lattice parameter a and the Debye-Waller factors for the individual atoms decrease smoothly with decreasing temperature. There are no unusual changes of the structural parameters near Tc. © 2001 Elsevier Science B.V. All rights reserved. |
spellingShingle | Huang, Q He, T Regan, K Rogado, N Hayward, M Haas, M Inumaru, K Cava, R Temperature dependence of the structural parameters of the non-oxide perovskite superconductor MgCNi3 |
title | Temperature dependence of the structural parameters of the non-oxide perovskite superconductor MgCNi3 |
title_full | Temperature dependence of the structural parameters of the non-oxide perovskite superconductor MgCNi3 |
title_fullStr | Temperature dependence of the structural parameters of the non-oxide perovskite superconductor MgCNi3 |
title_full_unstemmed | Temperature dependence of the structural parameters of the non-oxide perovskite superconductor MgCNi3 |
title_short | Temperature dependence of the structural parameters of the non-oxide perovskite superconductor MgCNi3 |
title_sort | temperature dependence of the structural parameters of the non oxide perovskite superconductor mgcni3 |
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