Anomalous temperature dependence of energy levels of electrons on helium

被引：0
|
作者：
Nasyedkin, Kostyantyn [1 ]
Watanabe, Masamitsu [2 ]
Kono, Kimitoshi [3 ]
机构：
[1] Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA
[2] RIKEN Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan
[3] Natl Yang Ming Chiao Tung Univ, Int Coll Semicond Technol, Hsinchu 300093, Taiwan
来源：
LOW TEMPERATURE PHYSICS | 2023年 / 49卷 / 08期
关键词：
two-dimensional electron system; liquid helium surface; electron energy spectrum; frequency shift; SURFACE-TENSION; LIQUID-HELIUM; HE-3; STATES; GAS;
D O I：
10.1063/10.0020162
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on magnetoconductivity measurements of electrons on helium exposed to resonant microwave irradiation within the temperature range associated with electron-ripplon scattering. Our findings reveal a non-monotonic temperature dependence of the intersubband frequency, with an abrupt decrease observed at temperatures below 0.3 K. We attribute this unexpected energy levels shift to the adsorption of 3He impurities near the liquid helium surface at low temperatures and such behavior is consistent with recent theoretical calculations of the surface electron energy spectra on He-3-He-4 mixtures.
引用
收藏
页码：955 / 960
页数：6
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