Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting Transition
We calculated the elastic properties of MgCNi3 at the superconducting transition () using various thermodynamic and acoustic data. From the calculations, a step discontinuity of 8 ppm in the bulk modulus, 7 ppm in the Young’s modulus, and 3 ppm in the longitudinal sound velocity () is expected at ....
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/247393 |
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| author | R. Abd-Shukor |
| author_facet | R. Abd-Shukor |
| author_sort | R. Abd-Shukor |
| collection | DOAJ |
| description | We calculated the elastic properties of MgCNi3 at the superconducting transition () using various thermodynamic and acoustic data. From the calculations, a step discontinuity of 8 ppm in the bulk modulus, 7 ppm in the Young’s modulus, and 3 ppm in the longitudinal sound velocity () is expected at . The step discontinuities at the transition temperature indicated the importance of lattice changes to the superconducting mechanism of MgCNi3. The Debye temperature was calculated to be 460 K. The electron-phonon coupling constants calculated in the weak and strong coupling limits of the BCS theory and the van Hove scenario showed that MgCNi3 is a moderately strong coupled superconductor. |
| format | Article |
| id | doaj-art-2e692ae9c74744e9aa37d79313a53880 |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2e692ae9c74744e9aa37d79313a538802025-08-20T02:38:51ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/247393247393Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting TransitionR. Abd-Shukor0School of Applied Physics, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaWe calculated the elastic properties of MgCNi3 at the superconducting transition () using various thermodynamic and acoustic data. From the calculations, a step discontinuity of 8 ppm in the bulk modulus, 7 ppm in the Young’s modulus, and 3 ppm in the longitudinal sound velocity () is expected at . The step discontinuities at the transition temperature indicated the importance of lattice changes to the superconducting mechanism of MgCNi3. The Debye temperature was calculated to be 460 K. The electron-phonon coupling constants calculated in the weak and strong coupling limits of the BCS theory and the van Hove scenario showed that MgCNi3 is a moderately strong coupled superconductor.http://dx.doi.org/10.1155/2013/247393 |
| spellingShingle | R. Abd-Shukor Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting Transition Advances in Materials Science and Engineering |
| title | Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting Transition |
| title_full | Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting Transition |
| title_fullStr | Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting Transition |
| title_full_unstemmed | Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting Transition |
| title_short | Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting Transition |
| title_sort | calculated changes in the elastic properties of mgcni3 at the superconducting transition |
| url | http://dx.doi.org/10.1155/2013/247393 |
| work_keys_str_mv | AT rabdshukor calculatedchangesintheelasticpropertiesofmgcni3atthesuperconductingtransition |