论文标题
磁场中的偏心Corbino FET：高度可调的光电探测器
Eccentric Corbino FET in magnetic field: a highly tunable photodetector
论文作者
论文摘要
我们使用偏心的Corbino磁盘几何形状研究封闭式的田间效应晶体管（FET），使得排水跨越其周长，而中心内部环充当源。在源和门之间应用AC THZ电位差，而测量了FET电子非线性校正的静态源液压电压。当将磁场垂直于设备施加时，在回旋频率下会出现强共振。可以通过改变磁盘的偏心率来调节共振的强度。我们表明，偏心率的最佳值可以最大程度地提高FET的响应性。
We study gated field effect transistors (FETs) with an eccentric Corbino-disk geometry, such that the drain spans its circumference while the off-center inner ring acts as a source. An AC THz potential difference is applied between source and gate while a static source-drain voltage, rectified by the nonlinearities of FET electrons, is measured. When a magnetic field is applied perpendicular to the device, a strong resonance appears at the cyclotron frequency. The strength of the resonance can be tuned by changing the eccentricity of the disk. We show that there is an optimum value of the eccentricity that maximizes the responsivity of the FET.
