Faculté des sciences

Magnetic Proximity Effect in YBa₂Cu₃O₇/La2/3Ca1/3MnO₃ and YBa₂Cu₃O₇/LaMnO₃₊ Superlattices

Satapathy, Dillip Kumar ; Uribe-Laverde, M. A. ; Marozau, I. ; Malik, Vivek K. ; Das, S. ; Wagner, Th. ; Marcelot, C. ; Stahn, J. ; Brück, S. ; Rühm, A. ; Macke, S. ; Tietze, T. ; Goering, E. ; Frañó, A. ; Kim, J. -H. ; Wu, M. ; Benckiser, E. ; Keimer, B. ; Devishvili, A. ; Toperverg, B. P. ; Merz, M. ; Nagel, P. ; Schuppler, S. ; Bernhard, Christian

In: Physical Review Letters, 2012, vol. 108, no. 19, p. 197201

Using neutron reflectometry and resonant x-ray techniques we studied the magnetic proximity effect (MPE) in superlattices composed of superconducting YBa₂Cu₃O₇ and ferromagnetic-metallic La0.67Ca0.33MnO₃ or ferromagnetic-insulating LaMnO₃₊. We find that the MPE strongly depends on the electronic state of the manganite layers, being pronounced for the... Plus

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    Summary
    Using neutron reflectometry and resonant x-ray techniques we studied the magnetic proximity effect (MPE) in superlattices composed of superconducting YBa₂Cu₃O₇ and ferromagnetic-metallic La0.67Ca0.33MnO₃ or ferromagnetic-insulating LaMnO₃₊. We find that the MPE strongly depends on the electronic state of the manganite layers, being pronounced for the ferromagnetic-metallic La0.67Ca0.33MnO₃ and almost absent for ferromagnetic-insulating LaMnO₃₊. We also detail the change of the magnetic depth profile due to the MPE and provide evidence for its intrinsic nature.