Chin. Phys. Lett.  1999, Vol. 16 Issue (10): 756-757    DOI:
Original Articles |
Longitudinal Magnetoresistance Effect at Low Temperature in Silver Telluride Thin Films
LIANG Bing-qing;WANG Yin-jun
State Key Laboratory for Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
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LIANG Bing-qing, WANG Yin-jun 1999 Chin. Phys. Lett. 16 756-757
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Abstract Large longitudinal magnetoresistance (LMR) was observed in nonmagnetic silver telluride films. The magnitude of the LMR is not simply dependent on T and H, for example, multi-peaks of ρ at low field and low temperature appear in the Ag-Te film. Because both of -Δρ/ρ and a transition from -Δρ/ρ to +Δρ/ρ exist in Ag-Te films, the magnetoresistance (MR) behavior of the Ag-Te film does not like the bulk Ag-Te, but likes the doped semiconductors. About -27% of LMR was observed at low field in the Ag-Te films, while it could be negligible in the doped semiconductors. The MR behavior in Ag-Te films is discussed by means of a formation of impurity bands in the films.




Keywords: 75.70.Pa      73.50.Jt     
Published: 01 October 1999
PACS:  75.70.Pa  
  73.50.Jt (Galvanomagnetic and other magnetotransport effects)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1999/V16/I10/0756
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