High-Pressure Synthesis of a New Silicon Clathrate Superconductor, Ba8Si46
- 17 December 1999
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 39 (1), 56-58
- https://doi.org/10.1021/ic990778p
Abstract
A new silicon clathrate compound with a composition of Ba8Si46 was prepared under high-pressure and high-temperature conditions. The compound was isomorphous with Na8Si46 and became a superconductor with a transition temperature of 8.0 K. Barium atoms occupy all of the Si20 and Si24 cages of the clathrate structure. This is the first clathrate superconductor obtained as a bulk phase.Keywords
This publication has 14 references indexed in Scilit:
- Phase transitions ofat high pressures and high temperaturesPhysical Review B, 1998
- Composition dependence of the superconducting transition temperature of silicon clathrate compound NaxBa6Si46Solid State Communications, 1996
- NMR study in the superconducting silicon clathrate compoundPhysical Review B, 1996
- Superconductivity of trigonal BaSi2Physica C: Superconductivity and its Applications, 1995
- Superconductivity in the Silicon Clathrate Compound (Na,Ba)SPhysical Review Letters, 1995
- Electronic structure ofandPhysical Review B, 1995
- Preparation of Barium-Containing Silicon Clathrate CompoundFullerene Science and Technology, 1995
- Neue ternäre intermetallische Verbindungen mit Clathratstruktur: Ba8(T,Si)6Si40 und Ba6(T,Ge)6Ge40 mit T ≡ Ni, Pd, Pt, Cu, Ag, AuJournal of the Less Common Metals, 1991
- Superconductivity in High-Pressure Metallic Phases of SiPhysical Review Letters, 1985
- Clathrate Structure of Silicon Na 8 Si 46 and Na
x
Si 136 ( x < 11)Science, 1965