Min-Sik Kim, Bum-kyu Kim, U.J. Kim, H.-K. Choi, Ju-Jin Kim, Myung-Ho Bae
언어
한국어(KOR)
URL
https://www.earticle.net/Article/A415612
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초록
영어
A lossless transport of an arbitrary waveform in a frequency range of 106-109 Hz through a conduction channel in a cryogenic temperature is of importance for a high-speed operation of quantum device. However, it is hard to use a commercial oscilloscope to directly detect the waveform travelling in a device located in a cryogenic system. Here, we developed a cryogenic voltage sampling technique by using a Schottky barrier gate prepared on a surface of a GaAs/AlGaAs device, which revealed that an incident rectangle waveform can transport through a 1 mm long two-dimensional conduction channel without waveform deformation up to 20 MHz, while further study is needed to increase the detection frequency.
목차
Abstract 1. 서론 2. 실험 방법 3. 결과 및 논의 4. 결론 ACKNOWLEDGMENTS REFERENCES
키워드
cryogenic voltage samplingGaAs/AlGaAs2DEGSchottky-barrier gate
저자
Min-Sik Kim [ Department of Physics, Jeonbuk National University, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea ]
Bum-kyu Kim [ Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea ]
U.J. Kim [ Department of Physics, Jeonbuk National University, Jeonju 54896, Republic of Korea ]
H.-K. Choi [ Department of Physics, Jeonbuk National University, Jeonju 54896, Republic of Korea ]
Ju-Jin Kim [ Department of Physics, Jeonbuk National University, Jeonju 54896, Republic of Korea ]
Myung-Ho Bae [ Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea ]
Corresponding Author