http://repository.iitr.ac.in/handle/123456789/13791| Title: | Engineered superlattices with crossover from decoupled to synthetic ferromagnetic behavior |
| Authors: | Chopdekar R.V. Malik, Vivek K. Kane A.M. Mehta A. Arenholz E. Takamura Y. |
| Published in: | Journal of Physics Condensed Matter |
| Abstract: | The extent of interfacial charge transfer and the resulting impact on magnetic interactions were investigated as a function of sublayer thickness in La0.7Sr0.3MnO3/La0.7Sr0.3CoO3 ferromagnetic superlattices. Element-specific soft x-ray magnetic spectroscopy reveals that the electronic structure is altered within 5-6 unit cells of the chemical interface, and can lead to a synthetic ferromagnet with strong magnetic coupling between the sublayers. The saturation magnetization and coercivity depends sensitively on the sublayer thickness due to the length scale of this interfacial effect. For larger sublayer thicknesses, the La0.7Sr0.3MnO3 and La0.7Sr0.3CoO3 sublayers are magnetically decoupled, displaying two independent magnetic transitions with little sublayer thickness dependence. These results demonstrate how interfacial phenomena at perovskite oxide interfaces can be used to tailor their functional properties at the atomic scale. © 2017 IOP Publishing Ltd. |
| Citation: | Journal of Physics Condensed Matter (2018), 30(1): - |
| URI: | https://doi.org/10.1088/1361-648X/aa9b13 http://repository.iitr.ac.in/handle/123456789/13791 |
| Issue Date: | 2018 |
| Publisher: | Institute of Physics Publishing |
| Keywords: | interfaces magnetic oxides soft x-ray magnetic spectroscopy superlattices |
| ISSN: | 9538984 |
| Author Scopus IDs: | 6507976348 24758795000 57193826406 7402756644 12791104400 7102587702 |
| Author Affiliations: | Chopdekar, R.V., Department of Materials Science and Engineering, University of California, Davis, CA 95616, United States Malik, V.K., Department of Materials Science and Engineering, University of California, Davis, CA 95616, United States Kane, A.M., Department of Materials Science and Engineering, University of California, Davis, CA 95616, United States Mehta, A., Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator, Menlo Park, CA 94025, United States Arenholz, E., Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States Takamura, Y., Department of Materials Science and Engineering, University of California, Davis, CA 95616, United States |
| Funding Details: | This work was supported by the Swiss National Science Foundation (VKM, Grant PBFRP2-134402) and the Defense Advanced Research Projects Agency (RVC and YT, Grant N66001-11-1-4135). This research used resources of the ALS, which is a DOE Office of Science User Facility under contract no. DE-AC02-05CH11231. Use of the SSRL, SLAC National Accelerator Laboratory, is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. |
| Appears in Collections: | Journal Publications [PH] |
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