Infrared Cyclotron Resonance in Semiconducting Surface Inversion Layers

Infrared Cyclotron Resonance in Semiconducting Surface Inversion Layers
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半导体表面反型层中的红外回旋共振

DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
J. Quinn
J. Quinn
中科院分区：
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文献类型：
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作者：
C. Ting;S. Ying;J. Quinn

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研究了随机散射中心阵列和直流磁场作用下二维相互作用电子气体的频率相关电导率$ensuremath{sigma}(ensuremath{omega})$。电子-电子相互作用效应通过全纯记忆函数$M(ensuremath{omega})$进入$ensuremath{sigma}(ensuremath{omega})$，其虚部是频率相关弛豫时间$ensuremath{au}(ensuremath{omega})$的倒数。对红外回旋共振中观察到的一些令人困惑的结果，包括电子-电子相互作用如何影响基次和谐波，给出了定性解释。
The frequency-dependent conductivity $ensuremath{sigma}(ensuremath{omega})$ of a two-dimensional interacting electron gas in the presence of a random array of scattering centers and a dc magnetic field is studied. Electron-electron interaction effects enter $ensuremath{sigma}(ensuremath{omega})$ through the holomorphic memory function $M(ensuremath{omega})$ whose imaginary part is the inverse of the frequency-dependent relaxation time $ensuremath{ au}(ensuremath{omega})$. A qualitative explanation of some of the perplexing results observed in infrared cyclotron resonance, including how electron-electron interactions affect both the fundamental and harmonics, is given.