Direct Far-Infrared and Magneto-Transport Studies of the Two Dimensional Electron Gas

这项研究计划的目标是实现更深层次的 了解的磁性和红外特性的 技术上重要的二维电子气（2DEG）， 高质量调制掺杂半导体异质结。 低温和高磁场下的实验将在 用来探测分数量子大厅的物理特性 效果（FQHE）。 远红外（FIR）特性的内部， 将通过棱镜耦合研究子带跃迁， 并且没有外部磁场。 希望能回答 关于子带间耦合和 回旋共振跃迁由于平行磁场。 第二个推动力涉及对许多物质的磁输运研究。 身体自然的独特的水润效果和 平行磁场分量的反相状态。 这些 详细的调查将与复杂的 的理论。

This research program has the objective of achieving a deeper understanding of the magnetic and infrared properties of the technologically important two-dimensional electron gas (2DEG) in high quality, modulation-doped semiconductor heterojunctions. Experiments at low temperatures and high magnetic fields will be employed to probe the physics of the Fractional Quantum Hall Effect (FQHE). The far infrared (FIR) properties of the inter- subband transitions will be studied via prism coupling both with and without an external magnetic field. It is hoped to answer fundamental questions about the coupling between intersubband and cyclotron resonance transitions due to a parallel magnetic field. A second thrust involves magneto-transport studies of the many body nature of the unique FQHE effect and the effect of the parallel magnetic field component on the FQHE state. These detailed investigations will be compared with sophisticated theories of the FQHE.