uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Phase stability and superconductivity of strontium under pressure
Show others and affiliations
2012 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 101, no 5, 052604- p.Article in journal (Refereed) Published
Abstract [en]

We have used the ab initio random structure searching method together with density functional theory calculations to find stable structures of strontium under pressures up to 50 GPa. We predict a sequence of structural phase transitions and the stability of an orthorhombic structure of Cmcm symmetry above 25 GPa. Our energy, lattice dynamics, and molecular dynamics calculations confirm the stability of the Cmcm structure. The electron-phonon coupling calculations show that superconductivity arises in the bcc structure of compressed Sr and that it continues to exist in the Cmcm structure. The calculated superconducting transition temperatures are in good agreement with experiment. Our study gives an excellent account of the experimental observations.

Place, publisher, year, edition, pages
2012. Vol. 101, no 5, 052604- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-181930DOI: 10.1063/1.4742323ISI: 000307676600052OAI: oai:DiVA.org:uu-181930DiVA: diva2:558255
Available from: 2012-10-02 Created: 2012-10-02 Last updated: 2012-10-02Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Ahuja, Rajeev
By organisation
Materials Theory
In the same journal
Applied Physics Letters
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 173 hits
ReferencesLink to record
Permanent link

Direct link