In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 32, No. S1 ( 1993-01-01), p. 188-
Abstract:
The electrical conductivity σ and the thermopower S of amorphous germanium-copper alloys have been measured at pressures up to 10 GPa and temperatures down to 80 K using a diamond anvil cell. The temperature dependence of σ from 80 K to 310 K obeys the Mott's T -1/4 relation for variable-range hopping of carriers in the localized states at the Fermi level. A parameter for temperature variation of σ, T 0 1/4 increases below 2 GPa, and decreases above 2 GPa. The thermopower S has a positive value, and also shows a maximum at 2GPa. From these experimental results, the pressure dependence of the density of states for amorphous germanium alloy is discussed.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.7567/JJAPS.32S1.188
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1993
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
Permalink
