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http://hdl.handle.net/10773/19216| Title: | Strain induced enhanced ferromagnetic behavior in inhomogeneous low doped La0.95Sr0.05MnO3+delta |
| Author: | Das, S. Amaral, J. S. De, K. Willinger, M. Goncalves, J. N. Roy, A. Dhak, P. Giri, S. Majumder, S. Silva, C. J. R. Gomes, M. J. M. Mahapatra, P. K. Amaral, V. S. |
| Keywords: | GIANT MAGNETORESISTANCE PHASE-TRANSITION MANGANITES LAMNO3 SIZE |
| Issue Date: | 2013 |
| Publisher: | AMER INST PHYSICS |
| Abstract: | We report an unusual high-temperature ferromagnetic transition in bulk single-phase nanocrystalline La0.95Sr0.05MnO3+delta, achieved through localized strain and inhomogeneous Sr-doping. Magnetization measurements show a well defined transition at 290K and a broad one at similar to 150 K. HRTEM imaging reveals the strain on the highly crystalline nanometer sized grains and Sr-doping gradients, while oxygen homogeneity at the grain interfaces is confirmed by EELS-spectra. The magnetic behavior, far from the expected bulk phase diagram, shows how local doping and strain can strongly tune the macroscopic properties of a bulk material. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4793657] |
| Peer review: | yes |
| URI: | http://hdl.handle.net/10773/19216 |
| DOI: | 10.1063/1.4793657 |
| ISSN: | 0003-6951 |
| Publisher Version: | 10.1063/1.4793657 |
| Appears in Collections: | CICECO - Artigos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Strain induced enhanced ferromagnetic behavior in inhomogeneous low doped La 0.95Sr 0.05MnO 3+δ_10.10631.4793657.pdf | 1 MB | Adobe PDF | View/Open |
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