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Thickness dependent magnetotransport in ultra-thin manganite films

J. Z. Sun·D. W. Abraham·R. A. Rao·C. B. Eom
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Abstract

To understand the near-interface magnetism in manganites, uniform, ultra-thin films of La_{0.67}Sr_{0.33}MnO_3 were grown epitaxially on single crystal (001) LaAlO_3 and (110) NdGaO_3 substrates. The temperature and magnetic field dependent film resistance is used to probe the film's structural and magnetic properties. A surface and/or interface related dead-layer is inferred from the thickness dependent resistance and magnetoresistance. The total thickness of the dead layer is estimated to be $\sim 30 Å$ for films on NdGaO_3 and $\sim 50 Å$ for films on LaAlO_3.

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J. Z. Sun, D. W. Abraham, R. A. Rao, C. B. Eom. 1998-09-30. Thickness dependent magnetotransport in ultra-thin manganite films. https://doi.org/10.1063/1.124050

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