The infrared divergence response theory is applied to reorientational relaxation process of magnetic clusters in cluster spin glass(CoF2)0.5 (BaF2)0.2 (NaPO3)0.3 to study the behaviour of low temperature ultrasonic ab...The infrared divergence response theory is applied to reorientational relaxation process of magnetic clusters in cluster spin glass(CoF2)0.5 (BaF2)0.2 (NaPO3)0.3 to study the behaviour of low temperature ultrasonic absorption in this system . Our calculation results showed that the reorientational relaxation process makes the main contributions to the magnetic part of the ultrasonic absorption for T < 4.0 K ; as for T > 4.0 K , the contributions of the internal process inside the clusters must be considered.展开更多
文摘The infrared divergence response theory is applied to reorientational relaxation process of magnetic clusters in cluster spin glass(CoF2)0.5 (BaF2)0.2 (NaPO3)0.3 to study the behaviour of low temperature ultrasonic absorption in this system . Our calculation results showed that the reorientational relaxation process makes the main contributions to the magnetic part of the ultrasonic absorption for T < 4.0 K ; as for T > 4.0 K , the contributions of the internal process inside the clusters must be considered.
