Ferromagnetism and metal-like transport in antiferromagnetic insulator heterostructures
arXiv:cond-mat/0506351 · doi:10.1063/1.1992657
Abstract
Strained PrCaMnO/LaCaMnO/PrCaMnO trilayers were grown on (001)-SrTiO substrates using the pulsed-laser deposition technique. The coupling at the interfaces of several trilayers has been investigated from magnetization and electronic transport experiments. An increase of LaCaMnO layer thickness induces a magnetic ordering in the strain layers and at the interfaces leading to ferromagnetic behavior and enhanced coercivity, while resistivity shows metal-like behaviors. These effects are not observed in the parent compounds, which are antiferromagnetic insulators, opening a path, to induce artificially some novel properties.
arXiv commentTo be published in Applied Physics Letters
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