FERROMAGNETISM OF POTASSIUM CLUSTERS INCORPORATED INTO ZEOLITE LTA

被引：156
|
作者：
NOZUE, Y
KODAIRA, T
GOTO, T
机构：
[1] Department of Physics, Faculty of Science, Tohoku University, Aramaki, Aoba-Ku
来源：
PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 25期
关键词：
D O I：
10.1103/PhysRevLett.68.3789
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Potassium clusters are incorporated into supercages of zeolite LTA crystals, with the supercages arrayed in a simple cubic structure at a number density of 5.3 x 10(20) cm-3 . About four 4s electrons of K atoms are included in each cluster. The ac magnetic susceptibility increases dramatically with decreases in temperature below 8 K, and shows ferromagnetism below about 4 K. The effective magnetic moment per supercage is estimated to be about 0.13-mu(B) at 1.7 K. Magnetic properties resemble those of a reentrant spin glass.
引用
收藏
页码：3789 / 3792
页数：4
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