2004年8月
Pulse current response of high-Tc superconducting vortex flow transistors
CHINESE JOURNAL OF PHYSICS
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- 巻
- 42
- 号
- 4
- 開始ページ
- 458
- 終了ページ
- 462
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- 出版者・発行元
- PHYSICAL SOC REPUBLIC CHINA
The properties of superconducting vortex flow transistor (SVFT), which consist of a vortex flow channel and a control line for applying a magnetic field, are diagnosed by using a current pulses train method. The time-domain waveforms of the vortex flow voltage along the channel were measure using the current pulses train with the pulse width of 5 ms as input signals. The fast response of the flow voltage suggests that the heating effect is negligible and the effect of the magnetic field generated by the control line was dominant in our measurement. The vortex flow speed was estimated from the ratio of the flux flow voltage to the control current, and was found to be 8.6x10(4) m/s. We also estimated the pinning energy E, from the vortex flow speed, and found that the value of E-p is around 8.6 meV for our device, which can be easily excited by a conventional Ti:sapphire femtosecond laser.
- リンク情報
- ID情報
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- ISSN : 0577-9073
- Web of Science ID : WOS:000223379300007