http://repository.iitr.ac.in/handle/123456789/13887| Title: | Giant superconductivity-induced modulation oftheferromagnetic magnetization in a cuprate-manganite superlattice |
| Authors: | Hoppler J. Stahn J. Niedermayer Ch. Malik, Vivek K. Bouyanfif H. Drew A.J. Rössle M. Buzdin A. Cristiani G. Habermeier H.-U. Keimer B. Bernhard C. |
| Published in: | Nature Materials |
| Abstract: | Artificial multilayers offer unique opportunities for combining materials with antagonistic orders such as superconductivity and ferromagnetism and thus to realize novel quantum states1,2. In particular, oxide multilayers enable the utilization of the high superconducting transition temperature of the cuprates and the versatile magnetic properties of the colossal- magnetoresistance manganites3-6. However, apart from exploratory work7-10, the in-depth investigation of their unusual properties has only just begun. Here we present neutron reflectometry measurements of a [Y 0.6Pr0.4Ba2Cu3O7(10nm)/ La2/3Ca1/3MnO3(10nm)]10 superlattice, which reveal a surprisingly large superconductivity-induced modulation of the vertical ferromagnetic magnetization profile. Most surprisingly, this modulation seems to involve the density rather than the orientation of the magnetization and is highly susceptible to the strain, which is transmitted from the SrTiO3 substrate. We outline a possible explanation of this unusual superconductivity-induced phenomenon in terms of a phase separation between ferromagnetic and non-ferromagnetic nanodomains in the La2/3Ca1/3MnO3 layers. |
| Citation: | Nature Materials (2009), 8(4): 315-319 |
| URI: | https://doi.org/10.1038/nmat2383 http://repository.iitr.ac.in/handle/123456789/13887 |
| Issue Date: | 2009 |
| Publisher: | Nature Publishing Group |
| ISSN: | 14761122 |
| Author Scopus IDs: | 25633994200 6602107663 7003937806 24758795000 8266382300 8667757400 25634630900 16471460800 7004043001 7005220678 7005405718 16030481900 |
| Author Affiliations: | Hoppler, J., Physics Department, Fribourg Center for Nanomaterials (FriMat), Fribourg University, Chemin du Musée 3, CH-1700 Fribourg, Switzerland, Laboratory for Neutron Scattering, ETH Zurich, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland Stahn, J., Laboratory for Neutron Scattering, ETH Zurich, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland Niedermayer, Ch., Laboratory for Neutron Scattering, ETH Zurich, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland Malik, V.K., Physics Department, Fribourg Center for Nanomaterials (FriMat), Fribourg University, Chemin du Musée 3, CH-1700 Fribourg, Switzerland Bouyanfif, H., Physics Department, Fribourg Center for Nanomaterials (FriMat), Fribourg University, Chemin du Musée 3, CH-1700 Fribourg, Switzerland, Laboratoire de Physique de la Matière Condensée, Université de Picadie Jules Verne, 80000 Amiens, France Drew, A.J., Physics Department, Fribourg Center for Nanomaterials (FriMat), Fribourg University, Chemin du Musée 3, CH-1700 Fribourg, Switzerland, Queen Mary University of London, Department of Physics, Mile End Road, London, E1 4NS, United Kingdom Rössle, M., Physics Department, Fribourg Center for Nanomaterials (FriMat), Fribourg University, Chemin du Musée 3, CH-1700 Fribourg, Switzerland Buzdin, A., Condensed Matter Theory Group, UMR 5798, Université Bordeaux I, F-33405 Talence Cedex, France Cristiani, G., Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany Habermeier, H.-U., Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany Keimer, B., Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany Bernhard, C., Physics Department, Fribourg Center for Nanomaterials (FriMat), Fribourg University, Chemin du Musée 3, CH-1700 Fribourg, Switzerland |
| Funding Details: | This work is based on experiments carried out at the Swiss spallation neutron source SINQ and the Swiss light source SLS at Paul Scherrer Institute, Villigen, Switzerland. Some of the measurements were also made at the neutron reactor of the Institute Laue Langevin, France. We acknowledge support from M. Wolff at the Institute Laue Langevin. We appreciate stimulating discussions with D. Baeriswyl, G. Khaliullin and A.F. Volkov. Work at the University of Fribourg was funded by the Schweizerische Nationalfonds zur Förderung der Wissenschaften through grants 200020-119784 and 206021-113057 and by the NCCR program MANEP. |
| Corresponding Author: | Hoppler, J.; Physics Department, Fribourg Center for Nanomaterials (FriMat), Fribourg University, Chemin du Musée 3, CH-1700 Fribourg, Switzerland |
| Appears in Collections: | Journal Publications [PH] |
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