RANDOM FIELD EFFECTS IN A DISORDERED METAMAGNET - MAGNETIC DOMAINS AND THEIR DYNAMICS

被引:4
|
作者
BERTRAND, D
FERRE, J
MEYER, P
POMMIER, J
KLEEMANN, W
机构
[1] UNIV PARIS 11, PHYS SOLIDES LAB, F-91405 ORSAY, FRANCE
[2] UNIV DUISBURG, ANGEW PHYS LAB, DUISBURG, GERMANY
关键词
D O I
10.1016/0304-8853(92)90846-G
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The low temperature (H, T) magnetic phase diagram of the dilute Ising antiferromagnet Fe0.8Mg0.2Cl2 has been determined. A strong time-dependent magnetic hysteresis on mixed phase boundaries is evidenced and is analyzed from the magneto-optical imaging of the evolution of the magnetic domain pattern. This behaviour is attributed to random fields creating a metastable mesoscopic multidomain antiferromagnetic state.
引用
收藏
页码:389 / 391
页数:3
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