Stefanoski, S.
, Martin, J.
and Nolas, G.
(2010),
Low temperature transport properties and heat capacity of single-crystal Na8Si46, Journal of Physics Condensed Matter, [online], https://doi.org/10.1088/0953-8984/22/48/485404, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906133
(Accessed October 10, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Low temperature transport properties and heat capacity of single-crystal Na8Si46
Published
Author(s)
Stevce Stefanoski, , George S. Nolas
Abstract
The low temperature thermal conductivity, resistivity, and Seebeck coefficient of single-crystal Na8Si46 are investigated revealing the intrinsic low temperature transport properties of this material. Metallic conduction is observed, with a higher residual resistance ratio than any other known type I clathrate. Heat capacity together with thermal conductivity provide insight into the Na disorder inside the polyhedra formed by the Si framework. Single-crystal structural refinement and thermal property analyses reveal anisotropic disorder for Na inside the tetrakaidecahedra due to a reduction in the symmetry inside these polyhedra, unlike that for Na inside the dodecahedra.Citation
Journal of Physics Condensed Matter
Pub Type
Journals
Download Paper
Keywords
clathrate, transport properties, Seebeck coefficient
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created November 17, 2010, Updated October 12, 2022