Pyeong Kang Kim, Heechan Bang, Bongkeon Kim, Yong-Joo Doh
언어
한국어(KOR)
URL
https://www.earticle.net/Article/A423103
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초록
영어
We report on the fabrication and measurements of metallic Josephson junctions (JJs) consisting of Au nanoribbon and NbTi superconducting electrodes. The maximum supercurrent density in the junction reaches up to ~ 3 X 105 A/cm2 at 2.5 K, much larger than that of JJ using single-crystalline Au nanowire. Temperature dependence of the critical current exhibits an exponential decay behavior with increasing temperature, which is consistent with a long and diffusive junction limit. Under the application of a magnetic field, monotonous decrease of the critical current was observed due to a narrow width of the Au nanoribbon. Our observatons suggest that NbTi/Au/NbTi JJ would be a useful platform to develop an integrated superconducing quantum circuit combined with the superconducting coplanar waveguide and ferromagnetic π junctions.
목차
Abstract 1. 서론 2. 실험 3. 결과 및 토의 4. 결론 ACKNOWLEDGMENTS REFERENCES
Pyeong Kang Kim [ Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea ]
Heechan Bang [ Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea ]
Bongkeon Kim [ Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea ]
Yong-Joo Doh [ Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea ]
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