Mesoscopic magnetotransport in thin La0.7Ca 0.3MnO3/SrTiO3 films

E. Rozenberg, V. Markovich, Ya Yuzhelevskii, G. Gorodetsky, M. Ziese

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Abstract

The DC resistivity and differential resistance were measured as functions of temperature, magnetic fields and current flow in three epitaxial La 0.7Ca0.03MnO3 films grown on (001) SrTiO 3 substrates. These films had thickness of 70, 22 and 9 nm at Curie temperatures of 263, 254 and 220 K, respectively. It was found that the magnetoresistance and electroresistance effects correlate with prevailing magnetic ground states of considered films. The film thickness, having an uncertainty of ∼10%, was estimated from the deposition time.

Original languageEnglish
Pages (from-to)7103-7105
Number of pages3
JournalJournal of Applied Physics
Volume95
Issue number11 II
DOIs
StatePublished - 1 Jun 2004

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