铁磁-反铁磁超晶格零温磁矩

ZeroTemperature Magnetizations of Ferroand Antiferromagnetic Superlattices

用线性自旋波理论研究铁磁反铁磁超晶格的零温磁性质．数值计算结果表明，反铁磁层内耦合强度Ｊ２对超晶格磁性质有重要影响，子晶格零温磁矩有着非同寻常的量子效应．

Spinwave theory is used to investigate the magnetic properties of a Heisenberg model consisting of ferroand antiferromagnetic superlattices. The sublattice magnetizations are calculated. It is shown that the magnetizations are affected by antiferromagnetic coupling J2 and interesting quantum effects appear at zero temperature.