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Title: Hall effect in La{sub 0.7}Ce{sub 0.3}MnO{sub 3+{delta}} films with variable oxygen content

Abstract

Hall effects of the La{sub 0.7}Ce{sub 0.3}MnO{sub 3+{delta}} film, which is believed an electron-doped manganite, have been experimentally studied, and a positive normal Hall coefficient is observed below the Curie temperature when the oxygen content of the film varies in a wide range. These observations may be attributed to the presence of excessive oxygen and composition distribution in the film, which may occur companying tetravalent ion doping. Removing excessive oxygen drives the system into the electron-doping state, however, the resistivity increases monotonically with oxygen loss, and the metal-to-semiconductor transition typical for a hole-doped manganite disappears. These results suggest the determinative role of hole doping for the resistive and magnetic behaviors in La{sub 0.7}Ce{sub 0.3}MnO{sub 3+{delta}}.

Authors:
; ; ; ; ; ;  [1];  [2]
  1. State Key Laboratory for Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080 (China)
  2. (China)
Publication Date:
OSTI Identifier:
20788055
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 73; Journal Issue: 14; Other Information: DOI: 10.1103/PhysRevB.73.144403; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CERIUM COMPOUNDS; CURIE POINT; DISTRIBUTION; DOPED MATERIALS; ELECTRONS; HALL EFFECT; HOLES; LANTHANUM COMPOUNDS; MAGNETORESISTANCE; MANGANATES; METALS; OXYGEN; SEMICONDUCTOR MATERIALS; THIN FILMS

Citation Formats

Wang, D. J., Sun, J. R., Zhang, S. Y., Liu, G. J., Shen, B. G., Tian, H. F., Li, J. Q., and Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080. Hall effect in La{sub 0.7}Ce{sub 0.3}MnO{sub 3+{delta}} films with variable oxygen content. United States: N. p., 2006. Web. doi:10.1103/PHYSREVB.73.1.
Wang, D. J., Sun, J. R., Zhang, S. Y., Liu, G. J., Shen, B. G., Tian, H. F., Li, J. Q., & Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080. Hall effect in La{sub 0.7}Ce{sub 0.3}MnO{sub 3+{delta}} films with variable oxygen content. United States. doi:10.1103/PHYSREVB.73.1.
Wang, D. J., Sun, J. R., Zhang, S. Y., Liu, G. J., Shen, B. G., Tian, H. F., Li, J. Q., and Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080. Sat . "Hall effect in La{sub 0.7}Ce{sub 0.3}MnO{sub 3+{delta}} films with variable oxygen content". United States. doi:10.1103/PHYSREVB.73.1.
@article{osti_20788055,
title = {Hall effect in La{sub 0.7}Ce{sub 0.3}MnO{sub 3+{delta}} films with variable oxygen content},
author = {Wang, D. J. and Sun, J. R. and Zhang, S. Y. and Liu, G. J. and Shen, B. G. and Tian, H. F. and Li, J. Q. and Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080},
abstractNote = {Hall effects of the La{sub 0.7}Ce{sub 0.3}MnO{sub 3+{delta}} film, which is believed an electron-doped manganite, have been experimentally studied, and a positive normal Hall coefficient is observed below the Curie temperature when the oxygen content of the film varies in a wide range. These observations may be attributed to the presence of excessive oxygen and composition distribution in the film, which may occur companying tetravalent ion doping. Removing excessive oxygen drives the system into the electron-doping state, however, the resistivity increases monotonically with oxygen loss, and the metal-to-semiconductor transition typical for a hole-doped manganite disappears. These results suggest the determinative role of hole doping for the resistive and magnetic behaviors in La{sub 0.7}Ce{sub 0.3}MnO{sub 3+{delta}}.},
doi = {10.1103/PHYSREVB.73.1},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 14,
volume = 73,
place = {United States},
year = {Sat Apr 01 00:00:00 EST 2006},
month = {Sat Apr 01 00:00:00 EST 2006}
}
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