在外磁场中对铁磁体、反铁磁体、亚铁磁体的自旋波谱的讨论  

A Discussion of the Spin Wave Spectrum of Ferromagnet Antiferromagnet and Ferrimagnetic Crystal in the Presence of External Magnetic Field

作　　者：高志福[1] 张军[1] 

机构地区：[1]新疆大学物理科学与技术学院,新疆乌鲁木齐830046

出　　处：《新疆师范大学学报（自然科学版）》2007年第1期41-44,49,共5页Journal of Xinjiang Normal University(Natural Sciences Edition)

基　　金：国家自然科学基金〔1047010〕;教育部科学技术研究重点项目〔205181〕

摘　　要：在外磁场中我们用量子理论方法计算了铁磁体、反铁磁、亚铁磁体的自旋波谱,并对自旋波的特点进行了讨论。我们发现亚铁磁体既有类似于反铁磁体的磁序特性,又有类似于铁磁体的波谱特性。In this paper, we get the spin wave spectrum of ferromagnet, antiferromagnet and ferrimagnetic crystal in the presence of external magnetic field by quantum method, and also discuss the characteristics of the spin wave spectrum. We find that the magnetic order of ferrimagnet is similar to that of antiferromagnet and that its spin spectrum is similar to that of ferromagnet.

关 键 词：外磁场 亚铁磁体 自旋波 能谱 

分 类 号：O482.524[理学—固体物理]