We report on the fabrication of an atomically flat heteromagnetic rare-earth interface of 1-ML-Eu (6×6)/Gd(0001), and its element-specific magnetic analysis by means of magnetic dichroism in photoemission, revealing a high net Eu magnetization at low temperatures. This magnetic Eu phase is due to a strong positive interlayer exchange coupling across the interface which overrules the weak negative intralayer coupling between Eu spins in the hexagonal two-dimensional lattice.
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Arenholz et al. (1998) studied this question.
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