| dc.contributor.author | Qiu, LY | en_US |
| dc.contributor.author | White, MA | en_US |
| dc.contributor.author | Li, ZQ | en_US |
| dc.contributor.author | Tse, JS | en_US |
| dc.contributor.author | Ratcliffe, CI | en_US |
| dc.contributor.author | Tulk, CA | en_US |
| dc.contributor.author | Dong, JJ | en_US |
| dc.contributor.author | Sankey, OF | en_US |
| dc.date.accessioned | 2013-08-23T15:58:42Z | |
| dc.date.available | 2013-08-23T15:58:42Z | |
| dc.date.issued | 2001-07 | en_US |
| dc.identifier.citation | Qiu, LY, MA White, ZQ Li, JS Tse, et al. 2001. "Thermal and lattice dynamical properties of Na8Si46 clathrate." Physical Review B 64(2): 024303-024303. Copyright © 2001 American Physical Society. | en_US |
| dc.identifier.issn | 0163-1829 | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevB.64.024303 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10222/36205 | |
| dc.description.abstract | The experimental heat capacity of Na8Si46 has been determined from 35-300 K, and its lattice
parameters have been measured over the range 100-330 K. The experimental heat capacity and the
thermal-expansion coefficient are compared with theoretical lattice-dynamical calculations for
Na8Si46. The latter accurately reproduce the experimental thermal expansion and also give the first
reliable assignment of the vibrational spectrum of this material, as judged by comparison of the
calculated and experimental heat capacities. In addition, the theoretical results allow a
calculation of the Gruneisen parameter of Na8Si46, which shows enhanced anharmonicity at low
temperatures. | en_US |
| dc.relation.ispartof | Physical Review B | en_US |
| dc.title | Thermal and lattice dynamical properties of Na8Si46 clathrate | en_US |
| dc.type | article | en_US |
| dc.identifier.volume | 64 | en_US |
| dc.identifier.issue | 2 | en_US |
| dc.identifier.startpage | 024303 | en_US |
