【摘要】 用标准方法研究了可用Heisenberg模型描述的磁性超晶格,得到了决定自发磁化、居里温度、磁化率、自旋波谱等的关系。还就简单的情形,进行了解析和数值求解。结果表明,磁性超晶格可能有一些新的性质。在适当的情形,会出现类似亚铁磁序的结构。更多还原

【Abstract】 Magnetic superlattices describable with Heisenberg models are studied by means of the standard method, obtaining the relations which determine the spontaneous megnetization, the spin wave spectrum, the susceptibility, the Curie temperature and so forth. The results of numerical solutions for simple cases imply possible new magnetic properties in superlattices. In suitable cases, there may occur magnetic structures similar to those in ferromagnets.更多还原