Thickness dependent phase separation in La0.7Ca0.3MnO3 films

R. Rauer; J. Bäckström; D. Budelmann; M. Kurfiß; M. Schilling; M. Rübhausen; T. Walter; K. Dörr; S. L. Cooper

doi:10.1063/1.1520705

Thickness dependent phase separation in La_0.7Ca_0.3MnO₃ films

R. Rauer, J. Bäckström, D. Budelmann, M. Kurfiß, M. Schilling, M. Rübhausen, T. Walter, K. Dörr, S. L. Cooper

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

Abstract

Spectroscopic ellipsometry was used to study the complex dielectric function of La_0.7Ca_0.3MnO₃ (LCMO) films with various thicknesses and on different substrates. The metallicity was shown to develop gradually below an onset temperature by the temperature-dependent redistribution of low-energy spectral weight. The ultrathin films were characterized by phase separation and a percolation-type transition.

Original language	English (US)
Pages (from-to)	3777-3779
Number of pages	3
Journal	Applied Physics Letters
Volume	81
Issue number	20
DOIs	https://doi.org/10.1063/1.1520705
State	Published - Nov 11 2002

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1520705

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abstract = "Spectroscopic ellipsometry was used to study the complex dielectric function of La0.7Ca0.3MnO3 (LCMO) films with various thicknesses and on different substrates. The metallicity was shown to develop gradually below an onset temperature by the temperature-dependent redistribution of low-energy spectral weight. The ultrathin films were characterized by phase separation and a percolation-type transition.",

author = "R. Rauer and J. B{\"a}ckstr{\"o}m and D. Budelmann and M. Kurfi{\ss} and M. Schilling and M. R{\"u}bhausen and T. Walter and K. D{\"o}rr and Cooper, {S. L.}",

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AU - Rauer, R.

AU - Bäckström, J.

AU - Budelmann, D.

AU - Kurfiß, M.

AU - Schilling, M.

AU - Rübhausen, M.

AU - Walter, T.

AU - Dörr, K.

AU - Cooper, S. L.

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AB - Spectroscopic ellipsometry was used to study the complex dielectric function of La0.7Ca0.3MnO3 (LCMO) films with various thicknesses and on different substrates. The metallicity was shown to develop gradually below an onset temperature by the temperature-dependent redistribution of low-energy spectral weight. The ultrathin films were characterized by phase separation and a percolation-type transition.

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