Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting Transition

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 ....

Full description

Bibliographic Details
Main Author: R. Abd-Shukor
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2013/247393
id doaj-2e692ae9c74744e9aa37d79313a53880
record_format Article
spelling doaj-2e692ae9c74744e9aa37d79313a538802020-11-24T23:28:05ZengHindawi LimitedAdvances 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
collection DOAJ
language English
format Article
sources DOAJ
author R. Abd-Shukor
spellingShingle R. Abd-Shukor
Calculated Changes in the Elastic Properties of MgCNi3 at the Superconducting Transition
Advances in Materials Science and Engineering
author_facet R. Abd-Shukor
author_sort R. Abd-Shukor
title 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_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_sort calculated changes in the elastic properties of mgcni3 at the superconducting transition
publisher Hindawi Limited
series Advances in Materials Science and Engineering
issn 1687-8434
1687-8442
publishDate 2013-01-01
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.
url http://dx.doi.org/10.1155/2013/247393
work_keys_str_mv AT rabdshukor calculatedchangesintheelasticpropertiesofmgcni3atthesuperconductingtransition
_version_ 1725550847208718336

Similar Items