Alberca, A.Nemes, Norbert MarcelMompean, F. J.Fehér, T.Simón, F.Tornos, J.León Yebra, CarlosMunuera, C.Kirby, B. J.Fitzsimmons, M. R.Hernando Grande, AntonioSantamaría Sánchez-Barriga, JacoboGarcía Hernández, M.2023-06-192023-06-192013-10-111098-012110.1103/PhysRevB.88.134410https://hdl.handle.net/20.500.14352/34770© 2013 American Physical Society. We thank María José Calderón for useful discussions. We acknowledge funding from the Spanish Ministry for Science and Innovation through Grants No. MAT2011-27470-C02-01, No. MAT2011-27470-C02-02, and No. CSD2009-00013. Work supported by the European Research Council Starting Grant No. ERC-259374-Sylo and by the Office of Basic Energy Science (BES), U.S. Department of Energy (DOE), BES-Department of Materials Science funded by the DOE’s Office of BES, Division of Materials Research under Grant No. DE FG03-87ER-45332 and Hungarian OTKA Grants K107228 and CNK80991. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396.The magnetism of La_(0.7)Ca_(0.3)MnO_(3) (LCMO) epitaxial thin films grown on SrTiO_(3) (STO) and BaTiO_(3) (BTO) substrates is studied using polarized neutron reflectometry (PNR) and ferromagnetic resonance (FMR) techniques. In LCMO/BTO, PNR reveals a strongly suppressed magnetization of 300 kA/m, equivalent to a magnetic moment of 2 μB/Mn, throughout the LCMO layer, amounting to half the expected value. The largest suppression occurs near the interface with BTO, with magnetization values of 50 kA/m, equivalent to 0.3 μB/Mn. FMR is observable at 8.9 GHz only around the [110] crystallographic direction in thin LCMO/BTO. The resonance barely shifts as the applied field is rotated away from [110]. The FMR results are analyzed in terms of magnetoelastic anisotropy and compared to LCMO/STO grown under the same conditions. A two-layer magnetization model is proposed, based on strong out-of-plane anisotropy near the BTO interface and shown to qualitatively explain the main characteristics of the FMR results.engjournal articlehttp://dx.doi.org/10.1103/PhysRevB.88.134410http://journals.aps.org/open access537538.9Magnetic-anisotropyOxides.ElectricidadElectrónica (Física)Física de materialesFísica del estado sólido2202.03 Electricidad2211 Física del Estado Sólido