Phenomenological line-shape analysis of cyclotron-resonance-induced conductivity of electrons on liquid helium
Phenomenological line-shape analysis of cyclotron-resonance-induced conductivity of electrons on liquid helium
复制标题
液氦上回旋共振引起的电子电导现象的线形分析
DOI：
10.1103/physrevb.61.4530
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发表时间：
2000
影响因子：
3.7
通讯作者：
V. Shikin
中科院分区：
文献类型：
--
作者：
F. C. Penning;O. Tress;H. Bluyssen;E. Teske;M. Seck;P. Wyder;V. Shikin
本文报道了回旋共振条件下液体 4 He 上二维表面电子的低频磁导率测量。在相对较低的电子密度下，回旋共振引起的电导线形状是两个共振的唯象组合，可以通过拟合将其分开。这里研究了随着驱动场的增加有效散射时间 τ eff 减少的共振：观察到的共振位移、共振线宽和有效散射频率。研究发现，提取的 τ eff 具有与已发表的零磁场、直流飞行时间测量实验结果类似的电驱动场依赖性。
Low-frequency magnetoconductivity measurements of two-dimensional surface electrons on liquid 4 He under cyclotron resonance conditions are reported here. At relatively low-electron densities, the cyclotron-resonance-induced conductivity line shape is a phenomenological combination of two resonances, which can be separated by fitting. The resonance which shows a decrease of the effective scattering time τ eff with increasing driving field is studied here: the observed shift of the resonance, the resonance linewidth and the effective scattering frequency. It is found that the extracted τ eff has a similar electric driving field dependence as published experimental results from zero-magnetic field, dc time-of-flight measurements.