Electronic structure and transport properties of La0.7Ce0.3MnO3

W. J. Chang; J. Y. Tsai; H. T. Jeng; J. Y. Lin; Kenneth Y.J. Zhang; H. L. Liu; J. M. Lee; J. M. Chen; K. H. Wu; T. M. Uen; Y. S. Gou; J. Y. Juang

doi:10.1103/PhysRevB.72.132410

Electronic structure and transport properties of La0.7Ce0.3MnO3

W. J. Chang^*, J. Y. Tsai, H. T. Jeng, J. Y. Lin, Kenneth Y.J. Zhang, H. L. Liu, J. M. Lee, J. M. Chen, K. H. Wu, T. M. Uen, Y. S. Gou, J. Y. Juang

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

X-ray absorption spectroscopy (XAS), optical reflectance spectroscopy, and the Hall effect measurements were used to investigate the electronic structure in La0.7Ce0.3MnO3 thin films (LCeMO). The XAS results are consistent with those obtained from LDA+U calculations. In that the doping of Ce has shifted up the Fermi level and resulted in marked shrinkage of hole pockets originally existing in La0.7Ca0.3MnO3 (LCaMO). The Hall measurements indicate that in LCeMO the carriers are still displaying the characteristics of holes as LDA+U calculations predict. Analyses of the optical reflectance spectra evidently disapprove the scenario that the present LCeMO might have been dominated by the La-deficient phases.

Original language	English
Article number	132410
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	72
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.72.132410
Publication status	Published - 2005 Oct 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.72.132410

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title = "Electronic structure and transport properties of La0.7Ce0.3MnO3",

abstract = "X-ray absorption spectroscopy (XAS), optical reflectance spectroscopy, and the Hall effect measurements were used to investigate the electronic structure in La0.7Ce0.3MnO3 thin films (LCeMO). The XAS results are consistent with those obtained from LDA+U calculations. In that the doping of Ce has shifted up the Fermi level and resulted in marked shrinkage of hole pockets originally existing in La0.7Ca0.3MnO3 (LCaMO). The Hall measurements indicate that in LCeMO the carriers are still displaying the characteristics of holes as LDA+U calculations predict. Analyses of the optical reflectance spectra evidently disapprove the scenario that the present LCeMO might have been dominated by the La-deficient phases.",

author = "Chang, {W. J.} and Tsai, {J. Y.} and Jeng, {H. T.} and Lin, {J. Y.} and Zhang, {Kenneth Y.J.} and Liu, {H. L.} and Lee, {J. M.} and Chen, {J. M.} and Wu, {K. H.} and Uen, {T. M.} and Gou, {Y. S.} and Juang, {J. Y.}",

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AU - Chang, W. J.

AU - Tsai, J. Y.

AU - Jeng, H. T.

AU - Lin, J. Y.

AU - Zhang, Kenneth Y.J.

AU - Liu, H. L.

AU - Lee, J. M.

AU - Chen, J. M.

AU - Wu, K. H.

AU - Uen, T. M.

AU - Gou, Y. S.

AU - Juang, J. Y.

PY - 2005/10/1

Y1 - 2005/10/1

N2 - X-ray absorption spectroscopy (XAS), optical reflectance spectroscopy, and the Hall effect measurements were used to investigate the electronic structure in La0.7Ce0.3MnO3 thin films (LCeMO). The XAS results are consistent with those obtained from LDA+U calculations. In that the doping of Ce has shifted up the Fermi level and resulted in marked shrinkage of hole pockets originally existing in La0.7Ca0.3MnO3 (LCaMO). The Hall measurements indicate that in LCeMO the carriers are still displaying the characteristics of holes as LDA+U calculations predict. Analyses of the optical reflectance spectra evidently disapprove the scenario that the present LCeMO might have been dominated by the La-deficient phases.

AB - X-ray absorption spectroscopy (XAS), optical reflectance spectroscopy, and the Hall effect measurements were used to investigate the electronic structure in La0.7Ce0.3MnO3 thin films (LCeMO). The XAS results are consistent with those obtained from LDA+U calculations. In that the doping of Ce has shifted up the Fermi level and resulted in marked shrinkage of hole pockets originally existing in La0.7Ca0.3MnO3 (LCaMO). The Hall measurements indicate that in LCeMO the carriers are still displaying the characteristics of holes as LDA+U calculations predict. Analyses of the optical reflectance spectra evidently disapprove the scenario that the present LCeMO might have been dominated by the La-deficient phases.

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Electronic structure and transport properties of La0.7Ce0.3MnO3

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