Anomalous temperature dependence of elastic constant c(44) in V, Nb, Ta, Pd, and Pt
2010 (English)In: Journal of Physics and Chemistry of Solids, ISSN 0022-3697, E-ISSN 1879-2553, Vol. 71, no 8, 1065-1068 p.Article in journal (Refereed) Published
The anomalous temperature dependence of elastic constant c(44) for elements V. Nb, Ta, Pd, and Pt, has been calculated using first-principles theory. It is shown that the variation of elastic constant for simple elements can be approximated as the sum of thermal expansion and electronic components. The thermal expansion contributes the normal linearly decreasing effect to the elastic constant with temperature, while electronic contribution is determined by the unique character of electronic structure of elements and leads to the anomalous effect to the elastic constant with temperature.
Place, publisher, year, edition, pages
2010. Vol. 71, no 8, 1065-1068 p.
Elements, Ab initio calculations, Elastic properties
Other Engineering and Technologies not elsewhere specified
IdentifiersURN: urn:nbn:se:kth:diva-29238DOI: 10.1016/j.jpcs.2010.03.007ISI: 000280977000008ScopusID: 2-s2.0-77955554710OAI: oai:DiVA.org:kth-29238DiVA: diva2:392834
QC 201101282011-01-282011-01-272011-01-28Bibliographically approved