AC SUSCEPTIBILITY MEASUREMENTS IN THE PRESENCE OF DC MAGNETIC-FIELDS IN COGA ALLOYS - CLUSTER SPIN GLASS SYSTEM

被引：21

作者：

GROVER, AK

MALIK, SK

RADHAKRISHNAMURTY, C

VIJAYARAGHAVAN, R

机构：

[1] Tata Institute of Fundamental Research, Bombay

来源：

SOLID STATE COMMUNICATIONS | 1979年 / 32卷 / 12期

关键词：

D O I：

10.1016/0038-1098(79)90894-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Low field a.c. susceptibility measurements in the presence of large d.c. magnetic fields are reported on CoxGa1-x alloys (x = 0.585, 0.60 and 0.63), a cluster spin glass system, in the temperature range of 77 to 500 K. A peak in the a.c. susceptibility is observed in each case. The peak position shifts towards lower temperatures with increasing d.c. magnetic fields. In conjunction with the zero field NMR measurements reported earlier, these results may be taken to imply the existence of a continuous spectrum of freezing temperatures - cluster with highest anisotropy field having the lowest freezing temperature. © 1979.

引用

页码：1323 / 1325

页数：3

共 9 条

[1] MAGNETIC-PROPERTIES, COBALT CLUSTERS AND GIANT MOMENTS IN COGA [J].