Abstract

Two fundamentally different non-contact techniques are used to observe electronic paramagnetic resonance (EPR) in a two-dimensional system based on the ZnO/MgZnO heterotransition. Spin resonance is detected in the first geometry for the transmission signal in a broadband coplanar waveguide applied to the surface of a sample. In the second, EPR manifests in a change of the power of a radio wave signal passing through a pair of T-shaped emitter/detector antennas having capacitive coupling with a two-dimensional channel. Results are compared to data measured using standard means of transport EPR detection.

中文翻译：

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在非接触几何中观察二维电导电子中的自旋共振

摘要

在基于ZnO / MgZnO异质过渡的二维系统中，使用了两种根本不同的非接触技术来观察电子顺磁共振（EPR）。在施加到样品表面的宽带共面波导中，在第一几何形状中检测传输信号的自旋共振。在第二个中，EPR表现为通过一对T型发射器/检测器天线的无线电波信号的功率变化，该天线具有与二维通道的电容性耦合。将结果与使用标准运输EPR检测手段测得的数据进行比较。