THEORY OF OSCILLATORY G-FACTOR IN AN MOS INVERSION LAYER UNDER STRONG MAGNETIC-FIELDS
THEORY OF OSCILLATORY G-FACTOR IN AN MOS INVERSION LAYER UNDER STRONG MAGNETIC-FIELDS
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DOI：
10.1143/jpsj.37.1044
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发表时间：
1974-01-01
影响因子：
1.7
通讯作者：
UEMURA, Y
中科院分区：
文献类型：
--
作者：
ANDO, T;UEMURA, Y
计算了电子间交换作用引起的g因子的振荡增强。在Schubnikov-de Haas振荡中观察到的每个Landau能级的自旋分裂程度可以用Landau能级展宽理论来解释，如果考虑这种增强的话。本文还计算了倾斜磁场下的g因子，理论计算结果与方和斯泰尔斯的实验以及小林和小原最近的类似结果符合得很好。结果表明，山谷分裂是由相同的机制增强的，并且这种增强可能是在低能级朗道实验中观察到的一个原因。
The oscillatory enhancement of the g factor caused by the exchange interaction among electrons is calculated. The degree of the spin splitting of each Landau level observed in Schubnikov-de Haas oscillation is shown to be explained by the theory of the level broadening of Landau levels if such enhancement is taken into account. The g factor is also calculated under tilted magnetic fields, and the theoretical one is in excellent agreement with the experiment by Fang and Stiles, and with the similar one performed recently by Kobayashi and Komatsubara. It is proposed that the valley splitting is enhanced by just the same mechanism and that such enhancement is a possible reason why it is observed experimentally in low-lying Landau levels.