Open AccessSTUDIES OF ELECTRONIC TRANSPORT PROPERTIES OF POLYCRYSTALLINE SmxC60
Author(s) -
Shiyan Li,
Xianhui Chen,
Keqing Ruan,
Guofu Zhou,
Guochun Zhang,
Lei Cao
Publication year - 1998
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.47.1847
Subject(s) - electrical resistivity and conductivity , crystallite , magnetoresistance , condensed matter physics , quantum tunnelling , electron , materials science , sample (material) , weak localization , electron transport chain , physics , magnetic field , chemistry , thermodynamics , quantum mechanics , metallurgy , biochemistry
The electrical transport of polycrystalline samples SmxC60 has been investigated by resistivity and magnetoresistance (MR) measurements. The transport mechanism is different for the samples with different x in SmxC60 system. The temperature-dependent resistivity can be explained by the fluctuation-induced-tunneling model for the sample SmC60. The transport properties for the sample Sm2.75C60 appear to be dominated by weak localization and electron-electron interactions. The MR data of the sample Sm2.75C60 can be fitted by a weak-localized model with strong electron-electron interactions, but that of the sample SmC60 cannot.