期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.197201
关键词
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资金
- SNF [200020-11978, 200020-129484]
- NCCR MaNEP
- MPI-FKF group
- DFG [SFB/TRR 80]
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+delta. 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+delta. We also detail the change of the magnetic depth profile due to the MPE and provide evidence for its intrinsic nature.
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