Abstract
Type I clathrates have a cage structure formed by IV group elements and can encapsulate alkali or rare alkali atoms inside the cages. The potential inside the cages strongly depends on the cage formation and encapsulated atoms. In this paper, we studied the heat capacity of Ba-TM-Ge clathrates. We found that with increase of the disorder in the framework, the lattice constant increases, giving larger free space inside the cages. This change decreases the Einstein energies of the encapsulated atoms and increases the rattling states.
Original language | English |
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Pages (from-to) | 1521-1523 |
Number of pages | 3 |
Journal | Journal of Physics and Chemistry of Solids |
Volume | 73 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2012 Dec |
Keywords
- A. Intermetallic compounds
- A. Nanostructures
- D. Anharmonicity
- D. Specific heat
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics