反铁磁质中超声波与自旋波的耦合模式

Coupled Modes of Ultrasonic Waves and Spin Waves in Antiferromagnetic Crystals

计算和讨论了在反铁磁质中沿垂直外磁场方向传播的横超声波和自旋波的耦合模式的色散关系,此时磁声相互作用能与外磁场大小成正比,此耦合模式的色散关系与在铁磁质中沿平行的外磁场方向传播的磁声耦合模式的色散关系相似.

In antiferromagnetic crystals,the dispertion relation of the coupled modes of transverse ultrasonic waves and spin waves both propagating along the perpendicular external magnetic field direction is calculated and discussed.In this mode,the energy of magnonphonon interaction is directly proportional to the magnitude of external magnetic fiels,and the dispertion of the coupled mode is similar to the dispertion relation of magnonphonon coupled mode propagating along to the parallel external magnetic field i...