摘要
利用么正变换和改进的线性组合算符法研究了CdF2 、ZnS和SiC内任意耦合强度磁极化子的振动频率和有效质量的磁场特性。数值计算结果表明 :不同耦合常数的材料 ,磁场所给的定解范围和耦合强度的取值范围都不同 ;对任一种材料及确定的耦合强度值 ,虽然磁极化子振动频率和有效质量都随磁场的增加而增加 ,但增加率不同。
Some magnetic properties of the vibration frequency and the effective mass of the arbitrarily coupling magnetopolaron in the CdF 2 and ZnS and SiC semiconductors are studied by means of an improved linear combination operator and the unitary transformation method. Numerical calculations show that the rang determined by magnetic field and coupling strength is not alike for different material and the vibration frequency and the effective mass of magnetopolaron increases with increasing magnetic field but the rate of increase is not alike for an arbitrary material and a determinate value of coupling strength.
基金
中国科学院激发态物理开放实验室和内蒙自然科学基金项目!(980 32 )
关键词
任意耦合
磁极化子
CdF
ZNS
SIC
arbitrarily coupling
magnetopolaron
vibration frequency
effective mass
magnetic property
