Abstract
The authors present a study of interlayer coupling and proximity effects in a La0.66Ca0.33MnO3 (10 nm)/YBa2Cu3O7 (10 nm) superlattice. Using element-sensitive x-ray probes, the magnetic state of Mn can be probed without seeing the strong diamagnetism of the superconductor, which makes this approach ideal to study changes in the magnetic properties across the superconducting transition. By a combined experiment using in situ transport measurements during polarized soft x-ray measurements, they were able to see no noticeable influence of the superconducting state on the magnetic properties and no evidence for magnetic coupling across a 10 nm YBa2Cu3O7 layer. (c) 2007 American Institute of Physics.