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arXiv · 1104.4694

Metallic characteristics in superlattices composed of insulators, NdMnO3/SrMnO3/LaMnO3

J. W. Seo·B. T. Phan·J. Lee·H. -D. Kim·C. Panagopoulos
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Abstract

We report on the electronic properties of superlattices composed of three different antiferromagnetic insulators, NdMnO3/SrMnO3/LaMnO3 grown on SrTiO3 substrates. Photoemission spectra obtained by tuning the x-ray energy at the Mn 2p -> 3d edge show a Fermi cut-off, indicating metallic behavior mainly originating from Mn e_g electrons. Furthermore, the density of states near the Fermi energy and the magnetization obey a similar temperature dependence, suggesting a correlation between the spin and charge degrees of freedom at the interfaces of these oxides.

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J. W. Seo, B. T. Phan, J. Lee, H. -D. Kim, C. Panagopoulos. 2011-04-25. Metallic characteristics in superlattices composed of insulators, NdMnO3/SrMnO3/LaMnO3. https://doi.org/10.1063/1.3583586

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