THE TEMPERATURE-DEPENDENCE OF THE DOMAIN SPACING IN ULTRATHIN MAGNETIC-FILMS

被引：17

作者：

GEHRING, GA ^{[1
]}

KESKIN, M ^{[1
]}

机构：

[1] ERCIYES UNIV,FIZ BOLUMU,38039 KAYSERI,TURKEY

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1993年 / 5卷 / 44期

关键词：

D O I：

10.1088/0953-8984/5/44/007

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the domains in an ultrathin magnetic layer with perpendicular magnetization as a function of temperature. The domain spacing is given by the balance between the interface energy and the demagnetizing energy. The demagnetizing energy is calculated in a continuum theory which is valid provided that the domains are large compared with the lattice spacing. The temperature dependence of the interface energy arises from the entropy of the rough walls. This is obtained from the exact results for the two-dimensional Ising model. We predict that the domain size shrinks rapidly as the temperature is raised towards the transition.

引用

页码：L581 / L585

页数：5

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