Pd quench condensed onto a quartz plate in ultrahigh vacuum exhibits a pronounced resistance minimum in an external field. This anomaly has a two-dimensional origin but is not caused by the free surface atoms. A superposition with a small fraction of a Ni or Fe layer causes a similar anomaly as the magnetic field. The two effects are not additive. I suggest that a thin Pd sheet below the surface shows two-dimensional band ferromagnetism.
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Gerd Bergmann (1979) studied this question.
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