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| Hauptseite > Publikationsdatenbank > Proximity effects across oxide-interfaces of superconductor-insulator-ferromagnet hybrid heterostructure > print |
| Hauptseite > Publikationsdatenbank > Proximity effects across oxide-interfaces of superconductor-insulator-ferromagnet hybrid heterostructure > print |
| 001 | 861839 | ||
| 005 | 20210130001058.0 | ||
| 024 | 7 | _ | |a 10.1038/s41598-018-22036-y |2 doi |
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| 100 | 1 | _ | |a Prajapat, C. L. |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Proximity effects across oxide-interfaces of superconductor-insulator-ferromagnet hybrid heterostructure |
| 260 | _ | _ | |a [London] |c 2018 |b Macmillan Publishers Limited, part of Springer Nature |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a A case study of electron tunneling or charge-transfer-driven orbital ordering in superconductor (SC)-ferromagnet (FM) interfaces has been conducted in heteroepitaxial YBa2Cu3O7(YBCO)/La0.67Sr0.33MnO3(LSMO) multilayers interleaved with and without an insulating SrTiO3(STO) layer between YBCO and LSMO. X-ray magnetic circular dichroism experiments revealed anti-parallel alignment of Mn magnetic moments and induced Cu magnetic moments in a YBCO/LSMO multilayer. As compared to an isolated LSMO layer, the YBCO/LSMO multilayer displayed a (50%) weaker Mn magnetic signal, which is related to the usual proximity effect. It was a surprise that a similar proximity effect was also observed in a YBCO/STO/LSMO multilayer, however, the Mn signal was reduced by 20%. This reduced magnetic moment of Mn was further verified by depth sensitive polarized neutron reflectivity. Electron energy loss spectroscopy experiment showed the evidence of Ti magnetic polarization at the interfaces of the YBCO/STO/LSMO multilayer. This crossover magnetization is due to a transfer of interface electrons that migrate from Ti(4+)−δ to Mn at the STO/LSMO interface and to Cu2+ at the STO/YBCO interface, with hybridization via O 2p orbitals. So charge-transfer driven orbital ordering is the mechanism responsible for the observed proximity effect and Mn-Cu anti-parallel coupling in YBCO/STO/LSMO. This work provides an effective pathway in understanding the aspect of long range proximity effect and consequent orbital degeneracy parameter in magnetic coupling. |
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| 700 | 1 | _ | |a Singh, Surendra |0 0000-0001-5482-9744 |b 1 |
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| 700 | 1 | _ | |a Ravikumar, G. |0 P:(DE-HGF)0 |b 3 |
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| 700 | 1 | _ | |a Paul, Amitesh |0 0000-0002-6202-5081 |b 8 |e Corresponding author |
| 773 | _ | _ | |a 10.1038/s41598-018-22036-y |g Vol. 8, no. 1, p. 3732 |0 PERI:(DE-600)2615211-3 |n 1 |p 3732 |t Scientific reports |v 8 |y 2018 |x 2045-2322 |
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