Magnetic-field and temperature dependence of the energy gap in InN nanobelt

K. Aravind, Y. W. Su, D. S. Chung, Watson Kuo, C. S. Wu, K. S. Chang-Liao, K. H. Chen, L. C. Chen, C. D. Chen

研究成果: Article

1 引文 斯高帕斯(Scopus)

摘要

We present tunneling measurements on an InN nanobelt which shows signatures of superconductivity. Superconducting transition takes place at temperature of 1.3K and the critical magnetic field is measured to be about 5.5kGs. The energy gap extrapolated to absolute temperature is about 110μeV. As the magnetic field is decreased to cross the critical magnetic field, the device shows a huge zero-bias magnetoresistance ratio of about 400%. This is attributed to the suppression of quasiparticle subgap tunneling in the presence of superconductivity. The measured magnetic-field and temperature dependence of the superconducting gap agree well with the reported dependences for conventional metallic superconductors.

原文English
文章編號012155
期刊AIP Advances
2
發行號1
DOIs
出版狀態Published - 2012 十二月 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Aravind, K., Su, Y. W., Chung, D. S., Kuo, W., Wu, C. S., Chang-Liao, K. S., Chen, K. H., Chen, L. C., & Chen, C. D. (2012). Magnetic-field and temperature dependence of the energy gap in InN nanobelt. AIP Advances, 2(1), [012155]. https://doi.org/10.1063/1.3691830