双轴亚铁磁粒子中的量子位相干涉  

THE QUANTUM PHASE INTERFERENCEIN BIAXIAL FERRIMAGNETIC PARTICLES

作　　者：聂一行[1] 梁九卿[2] 

机构地区：[1]山西大学 [2]雁北师范学院

出　　处：《哈尔滨师范大学自然科学学报》2001年第4期57-60,共4页Natural Science Journal of Harbin Normal University

摘　　要：本文研究了外磁场沿难磁化轴和中间磁化轴所在平面上任意方向时 。The tunneling splitting in biaxial ferrimagnetic particles is obtained as a function of magnetic field applied along an arbitrary direction in the plane of hard and medium axes.We observe the oscillation of tunnel splitting with respect to the magnitude and the direction of the magnetic field due to the quantum phase interference of two tunneling paths of opposite windings.The oscillation is gradually smeared and in the end the tunnel splitting monotonously increases with the magnitude of the magnetic field when the direction of the magnetic field tends to the emedium axis.The behavior of the runnel splitting as a function of magnetic field is similar to the recent experimental observation with Fe 8 molecular clusters.

关 键 词：量子位相干涉 亚铁磁颗粒 隧穿劈裂振荡 难磁化轴 中间磁化轴 能级移动 

分 类 号：O413.1[理学—理论物理]