Unusual diamagnetic response in PrAlNiCuFe metallic glass

Wang, Y. T.; Pan, M. X.; Zhao, D. Q.; Wang, W. H.; Wang, W. L.
October 2004
Applied Physics Letters;10/4/2004, Vol. 85 Issue 14, p2881
Academic Journal
An unusual diamagnetic response is observed in a Pr60Al10Ni10Cu16Fe4 bulk metallic glass (BMG) during the zero-field-cooled (ZFC) magnetization measurement. The ZFC magnetization of the BMG is found to reverse its direction at low temperature and becomes diamagnetic, whereas the field-cooled branch remains positive. This apparent diamagnetism is ascribed to the specific couple between the ferromagnetic nanoparticles and the amorphous matrix in low fields. Besides, in superconductors, a giant diamagnetic response is unusual in magnetic materials. Therefore, it may simulate scientific and technological interest.


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