Superconductivity in germanium clathrate Ba8Ga16Ge30

Authors
Bryan, JD Srdanov, VI Stucky, GD Schmidt, D
Citation
Jd. Bryan et al., Superconductivity in germanium clathrate Ba8Ga16Ge30, PHYS REV B, 60(5), 1999, pp. 3064-3067
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
5
Year of publication
1999
Pages
3064 - 3067
Database
ISI
SICI code
0163-1829(19990801)60:5<3064:SIGCB>2.0.ZU;2-M
Abstract
We report type-II superconductivity in the germanium clathrate compound, Ba 8Ga16Ge30 with critical temperature, T-c = 7.5 +/- 0.2 K as determined by m agnetic susceptibility measurements. Barium atoms occupy cage voids provide d by a covalent sp(3) hybridized network of gallium and germanium. Magnetic susceptibility and transport measurements were used to characterize the tr ansition. [S0163-1829(99)06829-0].