Abstract
The molecular field effect from Gd on the 3d electronic states of Cu was studied from both a macro-scopic magnetization measurement and a micro-scopic way of magnetic Compton profile MCP in the rich content of Gd where the molecular field from Gd was increased as high as possible. From magnetization measurement, the magnetic moment of Gd was estimated to be about 7.0μB in Gd67Cu33 and Gd70Cu30 alloys, respectively. The Curie temperature Tc was found to increase gradually from 140 K for Gd60Cu40 to 150 K for Gd70Cu30. The MCP measurement revealed that some kinds of spin-polarization of 3d electrons in Cu were not detected effectively. That is, the 3d electronic states of Cu were stable and not affected effectively even in the stronger molecular field applied.
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