Anomalous diamagnetism of SmNiAl due to hydrogenation and field cooling

作者：Wang, YT^*; Zhang, H; Shao, HY; Li, XG; Zhang, LF; Takahashi, S

来源：Applied Physics Letters, 2006, 88(7): 072505.

DOI：10.1063/1.2174105

• RARE-EARTH
• SUPERCONDUCTIVITY
• METAL
• MAGNETISM
• LI2BEH4

The field-cooled (FC) and zero-field-cooled magnetizations of SmNiAl and its hydride were measured as a function of temperature. Hydrogenation and field-cooling cause a remarkable change in magnetic properties. SmNiAl exhibits a positive susceptibility, but an anomalous diamagnetic susceptibility is observed in the FC SmNiAl hydride below 32 K and in H < 1000 Oe. The diamagnetism is associated with magnetic layer structures and hydrogen ions.

• 出版日期2006-2-13
• 单位北京大学; 稀土材料化学及应用国家重点实验室