Superconductor/Ferromagnet Interfaces

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I'm trying to understand physics at these interfaces, specifically how a Cooper pair of opposite spins can tunnel into a ferromagnet which would prefer like spins.

Does anyone know some references, preferably textbooks that address these interfaces? I found a Rev. Mod. Phys. "Proximity effects in superconductor-ferromagnet heterostructures"
that's useful but maybe a little advanced for me.
 
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