Skip to main content

Effect of pressure on superconductivity in NaAlSi

Author(s): Schoop, Leslie; Müchler, Lukas; Schmitt, Jennifer; Ksenofontov, Vadim; Medvedev, Sergey; et al

To refer to this page use:
Abstract: The ternary superconductor NaAlSi, isostructural with LiFeAs, the "111" iron pnictide superconductor, is investigated under pressure. The structure remains stable up to 15 GPa. Resistivity and susceptibility measurements show an increase of Tc up to 2 GPa, followed by a decrease until superconductivity disappears at 4.8 GPa. Band structure calculations show that pressure should have a negligible effect on the electronic structure and the Fermi surface and thus the disappearance of superconductivity under pressure must have a different origin. We compare the electronic structure of NaAlSi under pressure with that of nonsuperconducting isostructural NaAlGe. © 2012 American Physical Society.
Publication Date: Nov-2012
Electronic Publication Date: 30-Nov-2012
Citation: Schoop, Leslie, Müchler, Lukas, Schmitt, Jennifer, Ksenofontov, Vadim, Medvedev, Sergey, Nuss, Jürgen, Casper, Frederick, Jansen, Martin, Cava, Robert Joseph, Felser, Claudia. (2012). Effect of pressure on superconductivity in NaAlSi. Physical Review B, 86 (17), 10.1103/PhysRevB.86.174522
DOI: doi:10.1103/PhysRevB.86.174522
ISSN: 1098-0121
EISSN: 1550-235X
Pages: 86.17:174522-1 - 174522-5
Type of Material: Journal Article
Journal/Proceeding Title: Physical Review B
Version: Final published version. This is an open access article.
Notes: Physical Review B - Condensed Matter and Materials Physics. Volume 86, Issue 17, 30 November 2012, Article number 174522.

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.