Wu XG, Peeters FM, Wang YJ, McCombe BD
National Laboratory for Superlattice and Microstructure, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China.
Phys Rev Lett. 2000 May 22;84(21):4934-7. doi: 10.1103/PhysRevLett.84.4934.
Cyclotron resonance (CR) of high density GaAs quantum wells exhibits well-resolved spin splitting above the LO-phonon frequency. The spin-up and spin-down CR frequencies are reversed relative to the order expected from simple band nonparabolicity. We demonstrate that this is a consequence of the blocking of the polaron interaction which is a sensitive function of the filling of the Landau levels.
高密度砷化镓量子阱的回旋共振（CR）在纵光学声子频率之上表现出分辨率良好的自旋分裂。相对于简单能带非抛物性预期的顺序，自旋向上和自旋向下的CR频率发生了反转。我们证明，这是极化子相互作用受阻的结果，极化子相互作用是朗道能级填充的敏感函数。
