LOW-TEMPERATURE MAGNETORESISTANCE OF HEAVILY FECL3-DOPED POLYACETYLENE - HOPPING CONDUCTION AMONG LOCALIZED STATES WITH COULOMB CORRELATION

被引:17
作者
KANEKO, H [1 ]
ISHIGURO, T [1 ]
TSUKAMOTO, J [1 ]
TAKAHASHI, A [1 ]
机构
[1] TORAY INDUSTRIES LTD,POLYMER RES LAB,OTSU 520,JAPAN
关键词
18;
D O I
10.1016/0038-1098(94)90936-9
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The positive magnetoresistance of disordered fully-FeCl3-doped polyacetylene showed a pronounced maximum near 2 T below 4.2 K. This contrasts with the magnetoresistance for disordered I2-doped sample showing a dull maximum. The results are analyzed in terms of the magnetic field effect to the hopping conduction among Anderson-localized states with Coulomb correlation. The difference by the dopant species is ascribed to the depth of the Fermi level from the mobility edge.
引用
收藏
页码:83 / 87
页数:5
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